Environmental barrier materials and coatings containing low melting temperature materials are provided. The materials and coatings include high melting temperature materials, such as rare earth silicates, mullite, hafnon, zircon, HfO2, and rare earth stabilized ZrO2. The low melting temperature materials have a melting temperature of less than 1500° C. The low melting temperature materials in the coating in-situ melt, flow, and fill the microstructural defects after post-heat treatment. Due to reduced microstructural defects, EBCs containing low melting temperature materials provide an enhanced barrier against oxidants diffusion and result in 10 times slower TGO growth rate as compared to coatings without low melting temperature materials.
C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
C04B 35/16 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silicates other than clay
A novel silver braze alloy material is provided which exhibits both a low melting temperature and excellent wettability when brazing components of an article, such as a tools that include a polycrystalline diamond compact. For example, the combination of these properties is beneficial in terms of cost (given the lower silver content) as well as for brazing a cutter to a drill bit body by forming a strong bond (via the high wettability property) and reducing potential damage to the drill bit during the brazing operation (via the low melting temperature property of the alloy).
A powder agglomerate for an abradable sealant coating is provided that includes a first powder having a pure metal or a metal alloy; and a second powder including a mineral, in which the powder agglomerate has at least one morphology selected from a porous agglomerate, a hollow agglomerate, a complex agglomerate, and a composite agglomerate. A powder agglomeration method that does not use fugitive phases and porosity formers, such as polymers, is also provided.
An alloy for powder-based additive manufacturing is provided that includes a powder having 20-24 wt % of Ni; 20-24 wt % of Cr, 13-16 wt % of W; 0.2-0.50 wt % of Si; 0-3 wt % of Fe; 0-1.25 wt % of Mn; 0-0.015 B; >0 C; >0 La; and a balance of Co, in which a ratio in a content of C to La in the alloy is <1.75.
C22C 30/00 - Alloys containing less than 50% by weight of each constituent
B22F 1/052 - Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
A method for manufacturing articles comprising heat-treated tungsten carbide particles in a matrix of a binding alloy is provided. The method comprises liquid metal infiltration. The tungsten carbide particles are preferably spheroidal, and the binding alloy preferably comprises copper. The tungsten carbide particles are preferably heat-treated prior to, or during, the liquid metal infiltration process. Also provided are articles prepared by the method.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22C 29/02 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
A nickel-based alloy composition for additive manufacturing and an additive manufacturing component made from the nickel-based alloy, which includes: 36 – 89 wt.% nickel; 4 – 9 wt.% aluminum; 6 – 14 wt.% cobalt; 4 – 26 wt.% chromium; 2 – 5 wt.% tantalum; and 3 – 13 wt.% tungsten. The nickel-based alloy composition provides an additive manufacturing component having a cracking density of less than 4.0 cracks/mm2.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22C 29/02 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
8.
LIGHTWEIGHT CORROSION-RESISTANT WEAR-RESISTANT BRAKE DISC, AND METHOD OF MANUFACTURING
A method of manufacturing a corrosion- and wear-resistant component and a corrosion- and wear-resistant component. The method includes preparing a feedstock powder that includes a stainless steel powder and a ceramic powder, sintering the feedstock powder at a first temperature to form a low porosity free-standing wear body, and bonding the wear body to an aluminum or aluminum alloy substrate at a second temperature lower than the first temperature.
B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
B22F 9/02 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B23P 15/00 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Compositions of highly complex oxides that exhibit low thermal inertia, which lead to decreased heat loss and increased engine efficiency, are provided for temperature swing coatings. The compositions include at least five constituent oxides greater than 5 mol %. The oxides may form single phase solid solutions or may form multiple phases. The oxide coating may be mixed with additional phases or have a high porosity to further decrease thermal inertia. The oxides may contain at least five of any of the following metals and/or semimetals: Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Ni, Cu, Zn, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, Lu, Be, Mg, Ca, Sr, Ba, Al, Ga, Sn, Sb, Tl, Pb, Bi, B, Si, Ge, As, Sb, Te, or Po.
The invention relates to a plasma torch head for interior coatings of rotationally symmetrical, asymmetrical, or freeform surfaces in concave or convex-shaped cavities of components with a distance between the surfaces to be coated greater than or equal to 40 mm using a plasma spraying process, with a cathode (217) whose tip (305) has a surface roughness of less than or equal to Ra 0.2 pm and preferably has grooves running in the axial direction of the cathode, which is secured by a self-locking thread in the cathode holder (213). Gas tightness with respect to the plasma gas is ensured by one or more high-temperature resistant O- rings (215), with one O-ring preventing gas leakage between the cathode holder (213) and insulation ring (207), and the other preventing gas leakage between the insulation ring (207) and anode (205). The cathode holder (213) has been designed in relation to the flow of the plasma gas so that the outflow velocity of the plasma gas in the holes above the center of the cathode (303) is lower than that below the center. A plasma torch head constructed as disclosed reduces voltage fluctuations over the entire operational life of the torch head and extends its potential service life.
A thermal spray material feedstock is provided that includes an iron-based alloy having 5-12 wt % of Al; 1.8-7.5 wt % of B; 0-2 wt % of C; 0-4.5 wt % of Mo; 0-6.5 wt % of V; and a balance of Fe. The iron-based alloy is substantially free of chromium and nickel.
This disclosure generally relates to coating compositions comprising chromium and aluminum and coatings formed using the same, and more particularly to bond coat compositions and coatings for use in various gas turbine applications. In one aspect, a material composition comprises M, Cr, and Al, wherein M is one or more of Ni, Co, and Fe. The material composition is configured to form a BCC ordered phase and a disordered metallic phase of either a BCC or FCC crystal structure.
C23C 4/08 - Metallic material containing only metal elements
C23C 4/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas
C23C 4/073 - Metallic material containing MCrAl or MCrAlY alloys, where M is nickel, cobalt or iron, with or without non-metal elements
C23C 28/02 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of metallic material
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
13.
COPPER-BASED ALLOY AND METAL MATRIX COMPOSITE FORMED USING SAME
The disclosure relates generally to copper-based alloys, and more particularly to copper-based alloys adapted for forming metal matrix composite (MMC) materials, and to methods of making the MMC materials. In one aspect, an alloy for forming a matrix of an MMC material has an elemental composition including: manganese (Mn) at 5.6-10.4 weight percent (wt. %); nickel (Ni) at 3.5-6.5 wt. %; tin (Sn) at 1.4-4 wt. %; and copper (Cu) exceeding 55 wt. % and up to a balance of the elemental composition. The alloy has a solidus temperature lower than a melting temperature of Cu.
C22C 29/10 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on titanium carbide
C22C 9/05 - Alloys based on copper with manganese as the next major constituent
A chemically complex oxide powder is provided that forms an abradable sealant coating for a turbine engine. Primary property advantages of the chemically complex oxide include low resistance to erosion and reduced wear on blades and labyrinth seal knife edges in a turbine engine. Secondary property advantages include improved thermal properties, excellent sintering resistance, excellent phase stability, and high resistance to chemical attack.
A thermal spray material feedstock is provided for “flash-carbide” coatings. Flash carbide coatings are thin, dense, and smooth thermal spray coatings that self-activate the substrate. Flash-carbide coatings form and peen the coating to impart compressive stress for good adhesion and corrosion resistance. To achieve this combination of properties and performance, a powder that includes fine, dense, and angular particles is used; however, this powder alone results in a poor deposition efficiency of typically less than 20%. The present disclosure mitigates the poor deposition efficiency of this powder alone by providing a composition having two or more different particles at a specific ratio to improve deposition efficiency with sufficient optimized stress and corrosion properties and, in some cases, an increase in coating performance.
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 1/052 - Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
Disclosed herein are embodiments of wear resistant alloys, such as ferrous alloys, that can have reduced carbide contents. In some embodiments, the alloys may have no carbides. In some, the alloy may have boride phases, such as phases having high Mo+W content and/or high Fe+Cr content. There can be reduced hardphases levels out of the specifically disclosed boride phases in some embodiments. In some embodiments, hypereutectic chromium borides can have limited incorporation into the disclosed alloys.
C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
C22C 38/54 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
C22C 38/58 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
C23C 4/10 - Oxides, borides, carbides, nitrides or silicidesMixtures thereof
C23C 4/12 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
An apparatus including a longitudinal body having a first end and a second end. The first end includes a wrench and the second end includes an electrode puller. The body contains a trigger mechanism that controls the electrode puller. The apparatus is a useful tool for assembly production personnel and technicians in that it combines a pliers and spanner wrench into a single tool, e.g., for removing and replacing electrodes in a thermal spray gun.
B25B 27/02 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
A method of applying an environmental barrier coating and an environmental barrier coating. The method includes applying a high apparent density powder via a high temperature and high velocity (HTHV) process. The high apparent density powder comprises at least one of rare earth silicates; mullite or alkaline silicate.
C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
C04B 35/16 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silicates other than clay
19.
ALUMINA-RICH ALUMINOSILICATE DIFFUSION BARRIERS FOR MULTILAYER ENVIRONMENTAL BARRIER COATINGS
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
20.
ALUMINA-RICH ALUMINOSILICATE DIFFUSION BARRIERS FOR MULTILAYER ENVIRONMENTAL BARRIER COATINGS
A method for forming an environmental barrier coating (EBC) system on a surface of a ceramic matrix composite (CMC) to be protected and an EBC. The method includes applying an aluminosilicate composition over the surface of the CMC to be protected to form an aluminosilicate layer; and applying a rare-earth disilicate composition onto aluminosilicate layer.
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
21.
COMPOSITE THERMAL SPRAY POWDER OF OXIDES AND NON-OXIDES
Composite thermal spray powders are formed by manufacturing two or more powder feedstock components having different chemical compositions, particle size ranges and morphologies, these different features arising from different powder manufacturing processes. The resulting coatings typically serve as abradable seals, thermal barrier coatings or environmental barrier coatings, have improved temperature resistance, and maintain favorable properties over a longer time span compared to current coating materials. The thermal spray coating may be formed by using the described composite powders consisting of two or more powder components having at least one of different powder fractions in particle size, morphology and/or chemical composition or by co-spraying the described single components with at least different morphologies such as agglomerated, agglomerated-and-sintered, cladded, fused-and-crushed, or hollow oven spherical powder.
A self-reinforced environmental barrier coating (EBC), methods of manufacturing the EBC, and articles comprising the EBC, are provided. The EBC is prepared from a composition of a rare earth silicate and an aluminum silicate at or near the eutectic point of the combination. The EBC forms a self-reinforcing fibrous phase that reduces or eliminates microcracks.
C04B 41/85 - Coating or impregnating with inorganic materials
C23C 14/22 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
C23C 14/54 - Controlling or regulating the coating process
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
C04B 41/85 - Coating or impregnating with inorganic materials
C23C 14/22 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
C23C 14/54 - Controlling or regulating the coating process
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
24.
CMAS-RESISTANT TOPCOAT FOR ENVIRONMENTAL BARRIER COATINGS
An environmental barrier coating topcoat for improved resistance to calcium-magnesium-aluminosilicate (CMAS) degradation is disclosed. The CMAS mitigation compositions are based on spinel-containing materials. A CMAS-resistant multilayer structure on a substrate, the multi-CMAS-resistant topcoat 140 layer structure including a bond coating layer on the substrate; a hermetic EBC layer on the bond coating layer; and a CMAS-resistant topcoat layer including at least one of AB2O4 materials (A=Mg, Ni, Co, Cu, Mn, Ti, Zn, Be, Fe or combinations thereof; and B=Al, Fe, Cr, Co, V or combinations thereof); AB2O4 materials mixture with AxOy (A=Mg, Ni, Co, Cu, Mn, Ti, Zn, Be, Fe); AB2O4 materials mixture with BxOy (B=Al, Fe, Cr Co, V); AB2O4 materials mixture with RE2Si2O7 or RE2SiO5 silicate (RE=rare earth material); AB2O4 with rare earth oxides-stabilized Zirconia; AB2O4 with rare earth oxides-stabilized Hafnia; AB2O4 with aluminosilicates; AB2O4 with rare earth garnets; and MgO, NiO, Co2O3, Al2O3.
F01D 5/28 - Selecting particular materialsMeasures against erosion or corrosion
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
25.
THERMALLY STABLE THERMAL BARRIER COATINGS THAT EXHIBIT IMPROVED THERMAL CONDUCTIVITY AND EROSION RESISTANCE
A thermal spray material that exhibits improved thermal conductivity and solid particle erosion resistance is provided for thermal barrier coatings. The thermal spray material forms a thermally stable coating when thermally sprayed. The coating includes at least one phase that exhibits improved thermal conductivity and at least one phase that exhibits improved solid particle erosion resistance.
An electrically conductive composite powder having improved corrosion resistance is provided for microwave shielding applications. The electrically conductive composite powder composition includes a core of particles having a low density and a high dielectric constant; a nickel layer that is coated onto the core of particles; and a corrosion resistant alloy layer that is deposited onto the nickel layer. The electrically conductive composite powder exhibits excellent corrosion resistance performance, while also being substantially lower in cost that conventional Ag/glass shields. The electrically conductive composite powder can be used across a broad frequency range.
A Si-based composite bond coat for environmental barrier coatings on a Si-based ceramic matrix composite that protects the CMC from an oxidation environment by in-situ modifying a thermally grown oxide (TGO) using a TGO modifier to suppress cristobalite TGO cracking during thermal cycling in a gas turbine engine.
222. The low melting temperature materials have a melting temperature of less than 1500°C. The low melting temperature materials in the coating in-situ melt, flow, and fill the microstructural defects after post-heat treatment. Due to reduced microstructural defects, EBCs containing low melting temperature materials provide an enhanced barrier against oxidants diffusion and result in 10 times slower TGO growth rate as compared to coatings without low melting temperature materials.
C23C 16/44 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
29.
ENVIRONMENTAL BARRIER MATERIALS AND COATINGS CONTAINING LOW MELTING TEMPERATURE PHASES
Environmental barrier materials and coatings containing low melting temperature materials are provided. The materials and coatings include high melting temperature materials, such as rare earth silicates, mullite, hafnon, zircon, HfO2, and rare earth stabilized ZrO2. The low melting temperature materials have a melting temperature of less than 1500°C. The low melting temperature materials in the coating in-situ melt, flow, and fill the microstructural defects after post-heat treatment. Due to reduced microstructural defects, EBCs containing low melting temperature materials provide an enhanced barrier against oxidants diffusion and result in 10 times slower TGO growth rate as compared to coatings without low melting temperature materials.
C23C 16/44 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
30.
ELECTRICALLY CONDUCTIVE FILLERS WITH IMPROVED MICROWAVE SHIELDING PERFORMANCE
An electrically conductive composite powder is provided for microwave shielding applications. The electrically conductive composite powder includes a core of particles formed from a material having a low density of <5 g/cm3 and a high dielectric constant of ≥10; an intermediate layer coated onto the core of particles, wherein said intermediate layer has a high electrical conductivity of >5.90×10−8 Ohm*m at 20° C.; and an outer layer that is deposited onto the intermediate layer, said outer layer comprising a material having a high oxidation and corrosion resistance of >−0.2V galvanic potential in seawater as measured via ASTM G82. The electrically conductive composite powder exhibits excellent microwave shielding performance, while also being substantially lower in cost that conventional Ag/Ni shields. The electrically conductive composite powder can be used across a broad microwave frequency range.
B22F 1/18 - Non-metallic particles coated with metal
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
C23C 16/22 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
31.
SILVER BRAZE ALLOYS FOR POLY-CRYSTALLINE DIAMOND CUTTERS
A novel silver braze alloy material is provided which exhibits both a low melting temperature and excellent wettability when brazing components of an article, such as a tools that include a polycrystalline diamond compact. For example, the combination of these properties is beneficial in terms of cost (given the lower silver content) as well as for brazing a cutter to a drill bit body by forming a strong bond (via the high wettability property) and reducing potential damage to the drill bit during the brazing operation (via the low melting temperature property of the alloy).
A powder agglomerate for an abradable sealant coating is provided that includes a first powder having a pure metal or a metal alloy; and a second powder including a mineral, in which the powder agglomerate has at least one morphology selected from a porous agglomerate, a hollow agglomerate, a complex agglomerate, and a composite agglomerate. A powder agglomeration method that does not use fugitive phases and porosity formers, such as polymers, is also provided.
B22F 9/02 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22F 10/34 - Process control of powder characteristics, e.g. density, oxidation or flowability
A powder agglomerate for an abradable sealant coating is provided that includes a first powder having a pure metal or a metal alloy; and a second powder including a mineral, in which the powder agglomerate has at least one morphology selected from a porous agglomerate, a hollow agglomerate, a complex agglomerate, and a composite agglomerate. A powder agglomeration method that does not use fugitive phases and porosity formers, such as polymers, is also provided.
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
34.
HIGH PURITY NI -CR-W-MO-LA ALLOY FOR POWDER BASED ADDITIVE MANUFACTURING
A Ni-Cr-W-Mo-La alloy material powder for additive manufacturing has a composition of: 18.0 ? 22.0 wt% Cr; 12.0 ? 15.0 wt% W; 1.0 ? 3.0 wt% Mo; 0.15 ? 0.75 wt% Al; 0.005 ? 0.05 wt% La; 0.001 ? C ? 0.045 wt%; and 0.005 ? Si ? 0.20 wt%; and remainder Ni and unavoidable residual elements and impurities. The powder has a general size distribution between 10 and 100 µm.
An alloy for powder-based additive manufacturing is provided that includes a powder having 20-24 wt% of Ni; 20-24 wt% of Cr; 13-16 wt% of W; 0.2-0.50 wt% of Si; 0-3 wt% of Fe; 0-1.25 wt% of Mn; 0-0.015 B; >0 C; >0 La; and a balance of Co, in which a ratio in a content of C to La in the alloy is < 1.75.
An alloy for powder-based additive manufacturing is provided that includes a powder having 20-24 wt% of Ni; 20-24 wt% of Cr; 13-16 wt% of W; 0.2-0.50 wt% of Si; 0-3 wt% of Fe; 0-1.25 wt% of Mn; 0-0.015 B; >0 C; >0 La; and a balance of Co, in which a ratio in a content of C to La in the alloy is < 1.75.
A Ni-Cr-W-Mo-La alloy material powder for additive manufacturing has a composition of: 18.0 – 22.0 wt% Cr; 12.0 – 15.0 wt% W; 1.0 – 3.0 wt% Mo; 0.15 – 0.75 wt% Al; 0.005 – 0.05 wt% La; 0.001 ≤ C ≤ 0.045 wt%; and 0.005 ≤ Si ≤ 0.20 wt%; and remainder Ni and unavoidable residual elements and impurities. The powder has a general size distribution between 10 and 100 µm.
Ag-free or low-Ag binder alloys are provided that can be used as binders for abrasive materials such as core drill bits. The alloys comprise, or consist of, Cu, Sn and Ni, with Cu preferably the plurality or majority component. Methods of manufacturing abrasive materials comprising the binder alloys, such as infiltration processes, are also disclosed.
B24D 3/06 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic
C22C 9/02 - Alloys based on copper with tin as the next major constituent
C22C 9/06 - Alloys based on copper with nickel or cobalt as the next major constituent
C22C 30/04 - Alloys containing less than 50% by weight of each constituent containing tin or lead
Ag-free or low-Ag binder alloys are provided that can be used as binders for abrasive materials such as core drill bits. The alloys comprise, or consist of, Cu, Sn and Ni, with Cu preferably the plurality or majority component. Methods of manufacturing abrasive materials comprising the binder alloys, such as infiltration processes, are also disclosed.
The disclosure relates generally to tungsten carbide particles, and more particularly to textured spheroidal tungsten carbides, composites formed thereof, and methods of applying the composites. In one aspect, a powder blend comprises fused tungsten carbide particles. The fused tungsten carbide particles have a spheroidal or substantially spherical shape having ratio of a first length along a major axis to second length along a minor axis that is 1.20 or lower. The fused tungsten carbide particles have a surface that is textured to have a grain boundary area fraction greater than 5.0%.
B22F 1/05 - Metallic powder characterised by the size or surface area of the particles
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22C 29/00 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor
41.
IRON-BASED HIGH CORROSION AND WEAR RESISTANCE ALLOYS
Example embodiments relate to alloys having high corrosion resistance and high wear resistance. In particular, example embodiments relate to an iron-based alloy including 20 wt % to 50 wt % Cr; 0 wt % to 15 wt % Mo; 0 wt % to 15 wt % W; 3 wt % to 6 wt % B; and a balance of iron and impurities. In example embodiments, the pitting resistance equivalent number (PREN) is greater than 30 at 1300 K under substantially equilibrium solidification conditions. In example embodiments, the mole fraction of a hard phase of the alloy is between 45% and 80% at 1300K under substantially equilibrium solidification conditions. The liquidus of the alloy may be less than 2000K under substantially equilibrium solidification conditions.
C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
C23C 4/067 - Metallic material containing free particles of non-metal elements, e.g. carbon, silicon, boron, phosphorus or arsenic
C23C 4/12 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
Ni—Mn—Si based braze filler alloys or metals which may be nickel-rich, manganese-rich, or silicon-rich braze filler alloys, have unexpectedly narrow melting temperature ranges, low solidus and low liquidus temperatures, as determined by Differential Scanning calorimetry (DSC), while exhibiting good wetting, and spreading, without deleterious significant boride formation into the base metal, and can be brazed at lower temperatures. The nickel rich alloys contain 58 wt % to 70 wt % nickel, the manganese-rich alloys contain 55 wt % to 62 wt % manganese, and the silicon-rich alloys contain 25 wt % to 29 wt % silicon. Copper with or without boron to partly replace nickel may be employed without any substantial increase of the melting point, or to reduce the melting point. The braze filler alloys have sufficient brazability to withstand high temperature conditions for thin-walled aeronautical and other heat exchangers.
B23K 1/00 - Soldering, e.g. brazing, or unsoldering
B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
B23K 35/22 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
43.
MATERIAL FOR THIN, SMOOTH, AND HIGH-VELOCITY FLAME SPRAYED COATINGS WITH INCREASED DEPOSITION EFFICIENCY
A thermal spray material feedstock is provided for "flash-carbide" coatings. Flash carbide coatings are thin, dense, and smooth thermal spray coatings that self-activate the substrate. Flash-carbide coatings form and peen the coating to impart compressive stress for good adhesion and corrosion resistance. To achieve this combination of properties and performance, a powder that includes fine, dense, and angular particles is used; however, this powder alone results in a poor deposition efficiency of typically less than 20%. The present disclosure mitigates the poor deposition efficiency of this powder alone by providing a composition having two or more different particles at a specific ratio to improve deposition efficiency with sufficient optimized stress and corrosion properties and, in some cases, an increase in coating performance.
B32B 5/16 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer formed of particles, e.g. chips, chopped fibres, powder
C23C 4/00 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
44.
MATERIAL FOR THIN, SMOOTH, AND HIGH-VELOCITY FLAME SPRAYED COATINGS WITH INCREASED DEPOSITION EFFICIENCY
A thermal spray material feedstock is provided for "flash-carbide" coatings. Flash carbide coatings are thin, dense, and smooth thermal spray coatings that self-activate the substrate. Flash-carbide coatings form and peen the coating to impart compressive stress for good adhesion and corrosion resistance. To achieve this combination of properties and performance, a powder that includes fine, dense, and angular particles is used; however, this powder alone results in a poor deposition efficiency of typically less than 20%. The present disclosure mitigates the poor deposition efficiency of this powder alone by providing a composition having two or more different particles at a specific ratio to improve deposition efficiency with sufficient optimized stress and corrosion properties and, in some cases, an increase in coating performance.
B32B 5/16 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer formed of particles, e.g. chips, chopped fibres, powder
C23C 4/00 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
A thermal spray material feedstock is provided that includes an iron-based alloy having 5-12 wt% of Al; 1.8-7.5 wt% of B; 0-2 wt% of C; 0-4.5 wt% of Mo; 0-6.5 wt% of V; and a balance of Fe. The iron-based alloy is substantially free of chromium and nickel.
C23C 4/12 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
A thermal spray material feedstock is provided that includes an iron-based alloy having 5-12 wt% of Al; 1.8-7.5 wt% of B; 0-2 wt% of C; 0-4.5 wt% of Mo; 0-6.5 wt% of V; and a balance of Fe. The iron-based alloy is substantially free of chromium and nickel.
C23C 4/12 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
47.
COPPER-BASED ALLOY AND METAL MATRIX COMPOSITE FORMED USING SAME
The disclosure relates generally to copper-based alloys, and more particularly to copper-based alloys adapted for forming metal matrix composite (MMC) materials, and to methods of making the MMC materials. In one aspect, an alloy for forming a matrix of an MMC material has an elemental composition including: manganese (Mn) at 5.6-10.4 weight percent (wt. %); nickel (Ni) at 3.5-6.5 wt. %; tin (Sn) at 1.4-4 wt. %; and copper (Cu) exceeding 55 wt. % and up to a balance of the elemental composition. The alloy has a solidus temperature lower than a melting temperature of Cu.
C22C 9/05 - Alloys based on copper with manganese as the next major constituent
C22C 9/06 - Alloys based on copper with nickel or cobalt as the next major constituent
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22C 32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
Iron-based braze filler alloys having unexpectedly narrow melting temperature ranges, low solidus and low liquidus temperatures, as determined by Differential Scanning calorimetry (DSC), while exhibiting high temperature corrosion resistance, good wetting, and spreading, without deleterious significant boride formation into the base metal, and that can be brazed below 1,100 C contains a) nickel in an amount of from 0% to 35% by weight, b) chromium in an amount of from 0% to 25% by weight, c) silicon in an amount of from 4% to 9% by weight, d) phosphorous in an amount of from 5% to 11% by weight, e) boron in an amount of from 0% to 1% by weight, and f) the balance being iron, the percentages of a) to f) adding up to 100% by weight. The braze filler alloys or metals have sufficient high temperature corrosion resistance to withstand high temperature conditions of Exhaust Gas Recirculation Coolers.
The disclosure relates generally to copper-based alloys, and more particularly to copper-based alloys adapted for forming metal matrix composite (MMC) materials, and to methods of making the MMC materials. In one aspect, an alloy for forming a matrix of an MMC material has an elemental composition including: manganese (Mn) at 5.6-10.4 weight percent (wt. %); nickel (Ni) at 3.5-6.5 wt. %; tin (Sn) at 1.4-4 wt. %; and copper (Cu) exceeding 55 wt. % and up to a balance of the elemental composition. The alloy has a solidus temperature lower than a melting temperature of Cu.
C22C 9/06 - Alloys based on copper with nickel or cobalt as the next major constituent
C22C 32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
C22C 9/05 - Alloys based on copper with manganese as the next major constituent
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
A chemically complex oxide powder is provided that forms an abradable sealant coating for a turbine engine. Primary property advantages of the chemically complex oxide include low resistance to erosion and reduced wear on blades and labyrinth seal knife edges in a turbine engine. Secondary property advantages include improved thermal properties, excellent sintering resistance, excellent phase stability, and high resistance to chemical attack.
A chemically complex oxide powder is provided that forms an abradable sealant coating for a turbine engine. Primary property advantages of the chemically complex oxide include low resistance to erosion and reduced wear on blades and labyrinth seal knife edges in a turbine engine. Secondary property advantages include improved thermal properties, excellent sintering resistance, excellent phase stability, and high resistance to chemical attack.
This disclosure generally relates to coating compositions comprising chromium and aluminum and coatings formed using the same, and more particularly to bond coat compositions and coatings for use in various gas turbine applications. In one aspect, a material composition comprises M, Cr, and Al, wherein M is one or more of Ni, Co, and Fe. The material composition is configured to form a BCC ordered phase and a disordered metallic phase of either a BCC or FCC crystal structure.
This disclosure generally relates to coating compositions comprising chromium and aluminum and coatings formed using the same, and more particularly to bond coat compositions and coatings for use in various gas turbine applications. In one aspect, a material composition comprises M, Cr, and Al, wherein M is one or more of Ni, Co, and Fe. The material composition is configured to form a BCC ordered phase and a disordered metallic phase of either a BCC or FCC crystal structure.
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
Disclosed herein are embodiments of alloys configured to form a coating with two contrasting physical behaviors: 1) reduced hardness with the end result of an easily machinable coating and 2) high abrasion resistance. Generally low hardness will result in low abrasion resistance. However, embodiments of the alloys described herein are able to maintain a low hardness while exhibiting higher abrasion resistance.
Disclosed herein are improved chromium carbide alloy which possess improved properties as related to previous developments. The utilization of aluminum in the alloy can enhance the high temperature oxidation resistance. Embodiments of alloys were designed to simultaneously possess 1) a low liquidus temperature which enables easy atomization on an industrial scale, and 2) a microstructure of a gamma matrix and Cr7C3 carbide precipitates which enables high temperature stability and retention of advantageous properties at high temperatures.
C23C 4/10 - Oxides, borides, carbides, nitrides or silicidesMixtures thereof
C22C 29/02 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides
56.
Thermal spray iron-based alloys for coating engine cylinder bores
Disclosed herein are embodiments of iron-based alloys. The alloys can be powders used as a feedstock for plasma or thermal spray processes. In some embodiments, the alloys can have low or no chromium, provided improvements from an environmental and worker health perspective. In some embodiments, the powder can have a generally large particle size.
A method of applying an environmental barrier coating and an environmental barrier coating. The method includes applying a high apparent density powder via a high temperature and high velocity (HTHV) process. The high apparent density powder comprises at least one of rare earth silicates; mullite or alkaline silicate.
C23C 4/04 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
C23C 4/12 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
58.
OXIDATION BARRIER MATERIALS AND PROCESS FOR CERAMIC MATRIX COMPOSITES
A method of applying an environmental barrier coating and an environmental barrier coating. The method includes applying a high apparent density powder via a high temperature and high velocity (HTHV) process. The high apparent density powder comprises at least one of rare earth silicates; mullite or alkaline silicate.
C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
C23C 4/04 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
C23C 4/12 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
59.
CMAS-RESISTANT TOPCOAT FOR ENVIRONMENTAL BARRIER COATINGS
An environmental barrier coating topcoat for improved resistance to calcium-magnesium-aluminosilicate (CMAS) degradation is disclosed. The CMAS mitigation compositions are based on spinel-containing materials. A CMAS-resistant multilayer structure on a substrate, the multilayer structure including a bond coating layer on the substrate; a hermetic EBC layer on the bond coating layer; and a CMAS-resistant topcoat layer including at least one of AB2O4 materials (A =Mg, Ni, Co, Cu, Mn, Ti, Zn, Be, Fe or combinations thereof; and B=Al, Fe, Cr, Co, V or combinations thereof); AB2O4 materials mixture with AxOy (A=Mg, Ni, Co, Cu, Mn, Ti, Zn, Be, Fe); AB2O4 materials mixture with BxOy (B=Al, Fe, Cr Co, V); AB2O4 materials mixture with RE2Si2O7 or RE2SiO5 silicate (RE=rare earth material); AB2O4 with rare earth oxides-stabilized Zirconia; AB2O4 with rare earth oxides-stabilized Hafnia; AB2O4 with aluminosilicates; AB2O4 with rare earth garnets; and MgO, NiO, Co2O3, Al2O3.
Composite thermal spray powders are formed by manufacturing two or more powder feedstock components having different chemical compositions, particle size ranges and morphologies, these different features arising from different powder manufacturing processes. The resulting coatings typically serve as abradable seals, thermal barrier coatings or environmental barrier coatings, have improved temperature resistance, and maintain favorable properties over a longer time span compared to current coating materials. The thermal spray coating may be formed by using the described composite powders consisting of two or more powder components having at least one of different powder fractions in particle size, morphology and/or chemical composition or by co-spraying the described single components with at least different morphologies such as agglomerated, agglomerated-and-sintered, cladded, fused-and-crushed, or hollow oven spherical powder.
F01D 5/28 - Selecting particular materialsMeasures against erosion or corrosion
F01D 11/12 - Preventing or minimising internal leakage of working fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible, deformable or resiliently biased part
62.
COMPOSITE THERMAL SPRAY POWDER OF OXIDES AND NON-OXIDES
Composite thermal spray powders are formed by manufacturing two or more powder feedstock components having different chemical compositions, particle size ranges and morphologies, these different features arising from different powder manufacturing processes. The resulting coatings typically serve as abradable seals, thermal barrier coatings or environmental barrier coatings, have improved temperature resistance, and maintain favorable properties over a longer time span compared to current coating materials. The thermal spray coating may be formed by using the described composite powders consisting of two or more powder components having at least one of different powder fractions in particle size, morphology and/or chemical composition or by co-spraying the described single components with at least different morphologies such as agglomerated, agglomerated-and-sintered, cladded, fused-and-crushed, or hollow oven spherical powder.
F01D 5/28 - Selecting particular materialsMeasures against erosion or corrosion
F01D 11/12 - Preventing or minimising internal leakage of working fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible, deformable or resiliently biased part
63.
COMPLEX OXIDE THERMAL BARRIER COATINGS WITH LOW THERMAL INERTIA AND LOW THERMAL CONDUCTIVITY
Compositions of highly complex oxides that exhibit low thermal inertia, which lead to decreased heat loss and increased engine efficiency, are provided for temperature swing coatings. The compositions include at least five constituent oxides greater than 5 mol%. The oxides may form single phase solid solutions or may form multiple phases. The oxide coating may be mixed with additional phases or have a high porosity to further decrease thermal inertia. The oxides may contain at least five of any of the following metals and/or semimetals: Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Ni, Cu, Zn, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, Lu, Be, Mg, Ca, Sr, Ba,Al, Ga, Sn, Sb, Tl, Pb, Bi, B, Si, Ge, As, Sb, Te, or Po.
A thermal spray material that exhibits improved thermal conductivity and solid particle erosion resistance is provided for thermal barrier coatings. The thermal spray material forms a thermally stable coating when thermally sprayed. The coating includes at least one phase that exhibits improved thermal conductivity and at least one phase that exhibits improved solid particle erosion resistance.
C04B 35/505 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare earth compounds based on yttrium oxide
Compositions of highly complex oxides that exhibit low thermal inertia, which lead to decreased heat loss and increased engine efficiency, are provided for temperature swing coatings. The compositions include at least five constituent oxides greater than 5 mol%. The oxides may form single phase solid solutions or may form multiple phases. The oxide coating may be mixed with additional phases or have a high porosity to further decrease thermal inertia. The oxides may contain at least five of any of the following metals and/or semimetals: Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Ni, Cu, Zn, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, Lu, Be, Mg, Ca, Sr, Ba,Al, Ga, Sn, Sb, Tl, Pb, Bi, B, Si, Ge, As, Sb, Te, or Po.
C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
C04B 35/49 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates containing also titanium oxide or titanates
Disclosed herein are embodiments of a powder feedstock, such as for bulk welding, which can produce welds. The powder feedstock can include high levels of boron, and may be improved over previously used cored wires. Coatings can be formed from the powder feedstock which may have high hardness in certain embodiments, and low mass loss under ASTM standards.
C22C 32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
67.
THERMALLY STABLE THERMAL BARRIER COATINGS THAT EXHIBIT IMPROVED THERMAL CONDUCTIVITY AND EROSION RESISTANCE
A thermal spray material that exhibits improved thermal conductivity and solid particle erosion resistance is provided for thermal barrier coatings. The thermal spray material forms a thermally stable coating when thermally sprayed. The coating includes at least one phase that exhibits improved thermal conductivity and at least one phase that exhibits improved solid particle erosion resistance.
C04B 35/505 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare earth compounds based on yttrium oxide
A method of manufacturing a corrosion- and wear-resistant component and a corrosion- and wear-resistant component. The method includes preparing a feedstock powder that includes a stainless steel powder and a ceramic powder, sintering the feedstock powder at a first temperature to form a low porosity free-standing wear body, and bonding the wear body to an aluminum or aluminum alloy substrate at a second temperature lower than the first temperature.
B23P 19/00 - Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformationTools or devices therefor so far as not provided for in other classes
F16D 55/226 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially
An electrically conductive composite powder having improved corrosion resistance is provided for microwave shielding applications. The electrically conductive composite powder composition includes a core of particles having a low density and a high dielectric constant; a nickel layer that is coated onto the core of particles; and a corrosion resistant alloy layer that is deposited onto the nickel layer. The electrically conductive composite powder exhibits excellent corrosion resistance performance, while also being substantially lower in cost that conventional Ag/glass shields. The electrically conductive composite powder can be used across a broad frequency range.
An electrically conductive composite powder is provided for microwave shielding applications. The electrically conductive composite powder includes a core of particles formed from a material having a low density of < 5 g / cm3and a high dielectric constant of ≥ 10; an intermediate layer coated onto the core of particles, wherein said intermediate layer has a high electrical conductivity of > 5.90x10-8 Ohm*m at 20°C; and an outer layer that is deposited onto the intermediate layer, said outer layer comprising a material having a high oxidation and corrosion resistance of > -0.2V galvanic potential in seawater as measured via ASTM G82. The electrically conductive composite powder exhibits excellent microwave shielding performance, while also being substantially lower in cost that conventional Ag/Ni shields. The electrically conductive composite powder can be used across a broad microwave frequency range.
A Si-based composite bond coat for environmental barrier coatings on a Si-based ceramic matrix composite that protects the CMC from an oxidation environment by in-situ modifying a thermally grown oxide (TGO) using a TGO modifier to suppress cristobalite TGO cracking during thermal cycling in a gas turbine engine.
C01F 17/32 - Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6 oxide or hydroxide being the only anion, e.g. NaCeO2 or MgxCayEuO
C04B 41/50 - Coating or impregnating with inorganic materials
C04B 41/85 - Coating or impregnating with inorganic materials
72.
SI-BASED COMPOSITE BOND COAT CONTAINING CRISTOBALITE MODIFIER FOR ENVIRONMENTAL BARRIER COATINGS
A Si-based composite bond coat for environmental barrier coatings on a Si-based ceramic matrix composite that protects the CMC from an oxidation environment by in-situ modifying a thermally grown oxide (TGO) using a TGO modifier to suppress cristobalite TGO cracking during thermal cycling in a gas turbine engine.
C04B 41/85 - Coating or impregnating with inorganic materials
C04B 41/50 - Coating or impregnating with inorganic materials
C01F 17/32 - Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6 oxide or hydroxide being the only anion, e.g. NaCeO2 or MgxCayEuO
73.
ADVANCED BOND COAT MATERIALS FOR TBC WITH IMPROVED THERMAL CYCLIC FATIGUE AND SULFIDATION RESISTANCE
A bond coating material providing unexpectedly high thermal cyclic fatigue resistance and sulfidation resistance, and unexpectedly prolonged thermal cycle life in high temperature environments of gas turbine engine components with and without the presence of sulfur contains: a) 10% to 30% by weight chromium, b) at least one of tantalum and molybdenum in a total amount of 3% to 15% by weight, c) 5% to 13% by weight aluminum, d) 0.1% to 1.4% by weight silicon, e) 0.1% to 0.8% by weight yttrium, f) 0% to 1.2% by weight carbon, g) 0% to 1% by weight dysprosium, h) 0% to 1% by weight cerium, i) the balance being nickel, and the percentages of a) to i) adding up to 100% by weight. The total amount of tantalum and molybdenum, and the amounts of aluminum and silicon are each critical for avoiding delamination of a top coat from a bond coat.
C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
C23C 4/073 - Metallic material containing MCrAl or MCrAlY alloys, where M is nickel, cobalt or iron, with or without non-metal elements
A method of manufacturing a device includes thermally spraying tungsten carbine in feedstock that does not include Cobalt but that includes Nickel, Copper, or a Nickel-Copper alloy, the method improves the base coating toughness, anticorrosion, and antifouling properties for high load application in sea water and brackish water environments. Additionally, a Cobalt-free material lowers material costs and reduces the global demand of Cobalt. Providing a topcoat of a Silicon-doped DLC significantly reduces the topcoat brittleness of common DLC failures such as “egg shell” in high stress applications. Thus, high hardness, low friction applications may be tailored in high stress applications.
F16K 3/02 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor
C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C23C 4/10 - Oxides, borides, carbides, nitrides or silicidesMixtures thereof
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
F16K 25/00 - Details relating to contact between valve members and seats
A cathode for a plasma gun includes a main body having a first end and a second end, wherein the first end has a protrusion. A method of using the cathode includes mounting the cathode inside a plasma gun and generating an arc discharge via the protrusion.
Thermal spray coating obtained from a thermal spray powder material containing at least one of Aluminum-containing particles, Magnesium-containing particles, and Titanium-containing particles mechanically alloyed to a transition metal. The coating includes Aluminum, Magnesium, or Titanium alloy portions alloyed to the transition metal. The thermal spray powder is obtained of Aluminum, Magnesium, or Titanium containing particles mechanically alloyed to a transition metal.
C10M 107/32 - Condensation polymers of aldehydes or ketonesPolyestersPolyethers
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
Disclosed herein are embodiments of nickel-based alloys. The nickel-based alloys can be used as feedstock for PTA and laser cladding hardfacing processes, and can be manufactured into cored wires used to form hardfacing layers. The nickel-based alloys can have high corrosion resistance and large numbers of hard phases such as isolated hypereutectic hard phases.
Online retail store services in the field of materials for industrial processes, namely, thermal spray powders, wires, rods, and electrodes; online retail store services in the field of materials, namely pure metals, alloys, composites, and blends, MCrAlY materials, self-fluxing and self-fusing alloys, carbide materials, oxide ceramic materials, and cermet materials, for use in relation to thermal spray coating, plasma-transferred arc (PTA) spray coating, laser cladding, additive manufacturing, weld hardfacing, brazing, hot isostatic pressing, metal/ceramic injection molding, pack diffusion, and conductive fillers; online retail store services in the field of parts for thermal spray equipment, namely, spray guns, spray controllers, material feeders, power supplies, junction monitoring units, gas and liquid flow monitors and controllers, and hardware as well as assemblies of two or more of the mentioned equipment to a coating machine.
79.
HDH (HYDRIDE-DEHYDRIDE) PROCESS FOR FABRICATION OF BRAZE ALLOY POWDERS
A method for preparing powders of hard alloys, such as Ti and Ti-Zr alloys, using a hydride-dehydride process, and powders produced by the process, are disclosed. The method can be used to manufacture brazing powders. The method is less hazardous and more cost effective than current methods, such as gas atomization, of preparing such braze materials.
A thermal barrier coating (TBC) top coat which is a high entropy oxide (HEO) having a high configurational entropy, contains at least 5 different oxide-forming metallic cations, is a single phase or single crystalline structure, such as tetragonal or cubic over unexpectedly wide temperature ranges up to and beyond top coat operating temperatures of preferably at least 2300° F. The TBC top coats exhibit low thermal conductivity, good sintering resistance, excellent phase stability and good thermal cycling performance. At least five of the different oxide-forming metallic cations include: a) at least one of the transition metals: Sc, Y, Ti, Zr, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Ni, Cu, or Zn, and/or at least one of the lanthanides La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb. Dy, Ho, Er, Yb, or Lu. One of the at least five different oxide-forming metallic cations may also comprise at least one of the alkaline-earth metals: Be, Mg, Ca, Sr, or Ba.
C04B 35/50 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare earth compounds
C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
A multi-layer coating arrangement includes an environmental barrier coating (EBC) over a substrate; and at least one dense vertically cracked (DVC) coating layer over the EBC. The at least one DVC layer is resistant to erosion, water vapor corrosion and to calcium-magnesium-aluminum-silicate (CMAS).
The disclosure relates generally to tungsten carbide particles, and more particularly to textured spheroidal tungsten carbides, composites formed thereof, and methods of applying the composites. In one aspect, a powder blend comprises fused tungsten carbide particles. The fused tungsten carbide particles have a spheroidal or substantially spherical shape having ratio of a first length along a major axis to second length along a minor axis that is 1.20 or lower. The fused tungsten carbide particles have a surface that is textured to have a grain boundary area fraction greater than 5.0 %.
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
The disclosure relates generally to tungsten carbide particles, and more particularly to textured spheroidal tungsten carbides, composites formed thereof, and methods of applying the composites. In one aspect, a powder blend comprises fused tungsten carbide particles. The fused tungsten carbide particles have a spheroidal or substantially spherical shape having ratio of a first length along a major axis to second length along a minor axis that is 1.20 or lower. The fused tungsten carbide particles have a surface that is textured to have a grain boundary area fraction greater than 5.0 %.
B22F 7/00 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
A high purity yttria or ytterbia stabilized zirconia powder wherein a purity of the zirconia is at least 99.5 weight percent purity and with a maximum amount of specified oxide impurities.
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
F01D 5/28 - Selecting particular materialsMeasures against erosion or corrosion
Example embodiments relate to alloys having high corrosion resistance and high wear resistance. In particular, example embodiments relate to an iron-based alloy including 20 wt% to 50 wt% Cr; 0 wt% to 15 wt% Mo; 0 wt% to 15 wt% W; 3 wt% to 6 wt% B; and a balance of iron and impurities. In example embodiments, the pitting resistance equivalent number (PREN) is greater than 30 at 1300 K under substantially equilibrium solidification conditions. In example embodiments, the mole fraction of a hard phase of the alloy is between 45% and 80% at 1300K under substantially equilibrium solidification conditions. The liquidus of the alloy may be less than 2000K under substantially equilibrium solidification conditions.
Example embodiments relate to alloys having high corrosion resistance and high wear resistance. In particular, example embodiments relate to an iron-based alloy including 20 wt% to 50 wt% Cr; 0 wt% to 15 wt% Mo; 0 wt% to 15 wt% W; 3 wt% to 6 wt% B; and a balance of iron and impurities. In example embodiments, the pitting resistance equivalent number (PREN) is greater than 30 at 1300 K under substantially equilibrium solidification conditions. In example embodiments, the mole fraction of a hard phase of the alloy is between 45% and 80% at 1300K under substantially equilibrium solidification conditions. The liquidus of the alloy may be less than 2000K under substantially equilibrium solidification conditions.
Thermal sprayed coating made from a thermal spray powder material containing aluminum containing particles mechanically alloyed to a transition metal. The coating includes aluminum alloy portions alloyed to the transition metal. The thermal spray powder is made of aluminum containing particles mechanically alloyed to a transition metal.
C23C 4/067 - Metallic material containing free particles of non-metal elements, e.g. carbon, silicon, boron, phosphorus or arsenic
C22C 21/02 - Alloys based on aluminium with silicon as the next major constituent
B22F 3/115 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by spraying molten metal, i.e. spray sintering, spray casting
Ni-Mn-Si based braze filler alloys or metals which may be nickel-rich, manganese-rich, or silicon-rich braze filler alloys, have unexpectedly narrow melting temperature ranges, low solidus and low liquidus temperatures, as determined by Differential Scanning Calorimetry (DSC), while exhibiting good wetting, and spreading, without deleterious significant boride formation into the base metal, and can be brazed at lower temperatures. The nickel rich alloys contain 58 wt% to 70 wt% nickel, the manganese-rich alloys contain 55 wt% to 62 wt% manganese, and the silicon-rich alloys contain 25 wt% to 29 wt% silicon. Copper with or without boron to partly replace nickel may be employed without any substantial increase of the melting point, or to reduce the melting point. The braze filler alloys have sufficient brazability to withstand high temperature conditions for thin-walled aeronautical and other heat exchangers.
B23K 1/00 - Soldering, e.g. brazing, or unsoldering
B23K 35/22 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
90.
LOW MELTING NICKEL-MANGANESE-SILICON BASED BRAZE FILLER METALS FOR HEAT EXCHANGER APPLICATIONS
Ni-Mn-Si based braze filler alloys or metals which may be nickel-rich, manganese-rich, or silicon-rich braze filler alloys, have unexpectedly narrow melting temperature ranges, low solidus and low liquidus temperatures, as determined by Differential Scanning Calorimetry (DSC), while exhibiting good wetting, and spreading, without deleterious significant boride formation into the base metal, and can be brazed at lower temperatures. The nickel rich alloys contain 58 wt% to 70 wt% nickel, the manganese-rich alloys contain 55 wt% to 62 wt% manganese, and the silicon-rich alloys contain 25 wt% to 29 wt% silicon. Copper with or without boron to partly replace nickel may be employed without any substantial increase of the melting point, or to reduce the melting point. The braze filler alloys have sufficient brazability to withstand high temperature conditions for thin-walled aeronautical and other heat exchangers.
B23K 1/00 - Soldering, e.g. brazing, or unsoldering
B23K 35/22 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
91.
CMAS resistant, high strain tolerant and low thermal conductivity thermal barrier coatings and thermal spray coating method
An erosion and CMAS resistant coating arranged on a TBC coated substrate and including at least one porous vertically cracked (PVC) coating layer providing lower thermal conductivity and being disposed over a layer of MCrAlY wherein M represents Ni, Co or their combinations. At least one dense vertically cracked (DVC) erosion and CMAS resistant coating layer is deposited over the at least one PVC coating layer.
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
F01D 25/00 - Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
92.
LOW MELTING IRON BASED BRAZE FILLER METALS FOR HEAT EXCHANGER APPLICATIONS
Iron-based braze filler alloys having unexpectedly narrow melting temperature ranges, low solidus and low liquidus temperatures, as determined by Differential Scanning Calorimetry (DSC), while exhibiting high temperature corrosion resistance, good wetting, and spreading, without deleterious significant boride formation into the base metal, and that can be brazed below 1,100C contains: a) nickel in an amount of from 0% to 35% by weight, b) chromium in an amount of from 0% to 25% by weight, c) silicon in an amount of from 4% to 9% by weight, d) phosphorous in an amount of from 5% to 11% by weight, e) boron in an amount of from 0% to 1% by weight, and f) the balance being iron, the percentages of a) to f) adding up to 100% by weight. The braze filler alloys or metals have sufficient high temperature corrosion resistance to withstand high temperature conditions of Exhaust Gas Recirculation Coolers.
B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
B23K 35/22 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
93.
LOW MELTING IRON BASED BRAZE FILLER METALS FOR HEAT EXCHANGER APPLICATIONS
Iron-based braze filler alloys having unexpectedly narrow melting temperature ranges, low solidus and low liquidus temperatures, as determined by Differential Scanning Calorimetry (DSC), while exhibiting high temperature corrosion resistance, good wetting, and spreading, without deleterious significant boride formation into the base metal, and that can be brazed below 1,100C contains: a) nickel in an amount of from 0% to 35% by weight, b) chromium in an amount of from 0% to 25% by weight, c) silicon in an amount of from 4% to 9% by weight, d) phosphorous in an amount of from 5% to 11% by weight, e) boron in an amount of from 0% to 1% by weight, and f) the balance being iron, the percentages of a) to f) adding up to 100% by weight. The braze filler alloys or metals have sufficient high temperature corrosion resistance to withstand high temperature conditions of Exhaust Gas Recirculation Coolers.
B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
B23K 35/22 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
94.
Erosion and CMAS resistant coating for protecting EBC and CMC layers and thermal spray coating method
An erosion and CMAS resistant coating arranged on an EBC coated substrate includes at least one porous vertically cracked (PVC) coating layer providing CTE mitigation and being disposed over the EBC coated substrate. At least one dense vertically cracked (DVC) erosion and CMAS resistant coating layer is deposited over the at least one PVC coating layer.
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
F01D 5/28 - Selecting particular materialsMeasures against erosion or corrosion
95.
SINGLE ARC CASCADED LOW PRESSURE COATING GUN UTILIZING A NEUTRODE STACK AS A METHOD OF PLASMA ARC CONTROL
Vacuum plasma gun and method of controlling plasma arc in a vacuum plasma gun. Vacuum plasma gun includes a rear gun body section having an electrode, and a cascade section configured to connect to the rear gun body section. The cascade section includes a plurality of neutrodes arranged to form a neutrode stack. The method includes connecting a cascade neutrode stack to a rear body section of a vacuum plasma gun.
Disclosed herein are embodiments of alloys configured to form a coating with two contrasting physical behaviors: 1) reduced hardness with the end result of an easily machinable coating and 2) high abrasion resistance. Generally low hardness will result in low abrasion resistance. However, embodiments of the alloys described herein are able to maintain a low hardness while exhibiting higher abrasion resistance.
Disclosed herein are embodiments of alloys configured to form a coating with two contrasting physical behaviors: 1) reduced hardness with the end result of an easily machinable coating and 2) high abrasion resistance. Generally low hardness will result in low abrasion resistance. However, embodiments of the alloys described herein are able to maintain a low hardness while exhibiting higher abrasion resistance.
C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22F 3/115 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by spraying molten metal, i.e. spray sintering, spray casting
B22F 7/04 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers with one or more layers not made from powder, e.g. made from solid metal
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
Disclosed herein are embodiments of a powder feedstock, such as for bulk welding, which can produce welds. The powder feedstock can include high levels of boron, and may be improved over previously used cored wires. Coatings can be formed from the powder feedstock which may have high hardness in certain embodiments, and low mass loss under ASTM standards.
B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
C22C 1/05 - Mixtures of metal powder with non-metallic powder
C22C 29/14 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on borides
C22C 32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
C22C 33/02 - Making ferrous alloys by powder metallurgy
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
C22C 38/36 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon
C23C 24/10 - Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
100.
POWDER FEEDSTOCK FOR WEAR RESISTANT BULK WELDING CONFIGURED TO OPTIMIZE MANUFACTURABILITY
Disclosed herein are embodiments of a powder feedstock, such as for bulk welding, which can produce welds. The powder feedstock can include high levels of boron, and may be improved over previously used cored wires. Coatings can be formed from the powder feedstock which may have high hardness in certain embodiments, and low mass loss under ASTM standards.
B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
C22C 1/05 - Mixtures of metal powder with non-metallic powder
C22C 29/14 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on borides
C22C 32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
C22C 33/02 - Making ferrous alloys by powder metallurgy
C23C 24/10 - Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
C22C 38/36 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon
