In various embodiments, wire composed at least partially of arc-melted refractory metal material is utilized to fabricate three-dimensional parts by additive manufacturing.
In various embodiments, superconducting wires incorporate diffusion barriers composed of Nb alloys or Nb-Ta alloys that resist internal diffusion and provide superior mechanical strength to the wires.
H01L 39/12 - Devices using superconductivity or hyperconductivity; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof - Details characterised by the material
H01L 39/24 - Processes or apparatus specially adapted for the manufacture or treatment of devices provided for in group or of parts thereof
06 - Common metals and ores; objects made of metal
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Metals and metal alloys. Custom manufacturing and forging of metals and metal alloys to the order and specification of others; custom fabrication and production of metals and metal alloys to the order and specification of others; extrusion of metals and metal alloys to the order and specification of others; treatment of materials by application of metals and metal alloys. Research and development of new products; engineering; new product design services.
4.
CURRENT-INDUCED DARK LAYER FORMATION FOR METALLIZATION IN ELECTRONIC DEVICES
In various embodiments, electronic devices such as thin-film transistors and/or touch-panel displays incorporate bilayers formed at least in part by anodization of metal-alloy base layers.
H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
In various embodiments, metallic alloy powders formed at least in part by spray drying to form agglomerate particles and/or plasma densification to form composite particles are utilized as feedstock, or to fabricate feedstock, utilized in additive manufacturing processes to form three-dimensional metallic parts.
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
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 3/105 - Sintering only by using electric current, laser radiation or plasma
B33Y 70/00 - Materials specially adapted for additive manufacturing
6.
DIFFUSION BARRIERS FOR METALLIC SUPERCONDUCTING WIRES
In various embodiments, superconducting wires incorporate diffusion barriers composed of Ta alloys that resist internal diffusion and provide superior mechanical strength to the wires.
H01B 12/00 - Superconductive or hyperconductive conductors, cables or transmission lines
H01B 1/02 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of metals or alloys
H01L 39/12 - Devices using superconductivity or hyperconductivity; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof - Details characterised by the material
H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
7.
FABRICATON OF METALLIC PARTS BY ADDITIVE MANUFACTURING
In various embodiment, the present invention relates to method of fabricating a three-dimensional part by a process comprising the steps of: providing a wire comprising arc-melted refractory metallic material; translating a tip of the wire relative to a platform; while the tip of the wire is being translated, melting the tip of the wire with an energy source to form a molten bead, whereby the bead cools to form at least a portion of a layer of a three-dimensional part; and repeating steps (b) and (c) one or more times to produce the three dimensional part.
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B22F 5/12 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of tubes or wires
B22F 3/17 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by forging
B22F 3/18 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by using pressure rollers
B22F 3/20 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by extruding
In various embodiments, superconducting wires feature assemblies of clad composite filaments and/or stabilized composite filaments embedded within a wire matrix. The wires may include one or more stabilizing elements for improved mechanical properties.
In various embodiments, apparatuses for receiving and supporting one or more components during processing thereof at process temperatures greater than approximately 1000°C feature refractory metal shelves separated by refractory metal support posts.
Sputtering targets including molybdenum, niobium and tantalum are found to be useful for sputtering films for electronic devices. Sputtering targets with about 88 to 97 weight percent molybdenum show improved performance, particularly with respect to etching, such as when simultaneously etching an alloy layer including the Mo, Nb, and Ta, and a metal layer (e.g., an aluminum layer). The targets are particularly useful in manufacturing touch screen devices.
C22C 27/04 - Alloys based on tungsten or molybdenum
G06F 3/00 - Input arrangements for transferring data to be processed into a form capable of being handled by the computerOutput arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
In various embodiments, a microreactor features a corrosion-resistant microchannel network encased within a thermally conductive matrix material that may define therewithin one or more hollow heat-exchange conduits.
B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
F28D 3/00 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
12.
CORROSION-RESISTANT GLASS MELT ELECTRODES AND METHODS OF USING THEM
In various embodiments, refractory-metal glass melt electrodes are single- crystalline or composed of only large grains, at least within an outer layer thereof.
C03B 5/02 - Melting in furnacesFurnaces so far as specially adapted for glass manufacture in electric furnaces
13.
HIGH PURITY REFRACTORY METAL SPUTTERING TARGETS WHICH HAVE A UNIFORM RANDOM TEXTURE MANUFACTURED BY HOT ISOSTATIC PRESSING HIGH PURITY REFRACTORY METAL POWDERS
A method for making a sputtering target including steps of encapsulating and hot isostaticallly pressing at least one mass of metal powder (e.g., tantalum), having a particle size ranging from about 10 to about 1000 µm, with at least about 10 percent by weight of particles having a particle size greater than about 150 µm (for example, about 29 to about 56 percent (e.g., about 35 to about 47 percent) by weight of the particles in the at least one mass of metal powder having a particle size that is larger than 150 microns, but below about 250 µm), for defining at least a portion of a sputtering target body, having an essentially theoretical random and substantially uniform crystallographic texture.
In various embodiments, etchants featuring (i) mixtures of hydrochloric acid, methanesulfonic acid, and nitric acid, or (ii) mixtures of phosphoric acid, methanesulfonic acid, and nitric acid, are utilized to etch metallic bilayers while minimizing resulting etch discontinuities between the layers of the bilayer.
The invention concerns a sintered spray powder based on a metal matrix and molybdenum carbide, a method for the production thereof and the use of the spray powder for coating components, in particular rotating and moving components. The invention also describes a method of applying a coating using the spray powder according to the invention and a component coated therewith.
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
In various embodiments, eroded sputtering targets are partially refurbished by spray- depositing particles of target material to at least partially fill certain regions (e.g., regions of deepest erosion) without spray-deposition within other eroded regions (e.g., regions of less erosion). The partially refurbished sputtering targets may be sputtered after the partial refurbishment without substantive changes in sputtering properties (e.g., sputtering rate) and/or properties of the sputtered films.
In various embodiments, electronic devices such as thin-film transistors and/or touch-panel displays incorporate electrodes and/or interconnects featuring a conductor layer and, disposed above or below the conductor layer, a capping layer and/or a barrier layer comprising an alloy of Cu and one or more refractory metal elements selected from the group consisting of Ta, Nb, Mo, W, Zr, Hf, Re, Os, Ru, Rh, Ti, V, Cr, and Ni.
In various embodiments, powders with engineered particle-size distributions are slip or pressure casted to produce homogeneous parts without the need for additives such as flocculating or deflocculating agents.
The invention relates to a method for producing sintered bodies from valve metals, in particular tantalum, which sintered bodies have a low oxygen content and good tear-off resistance of the wire embedded in the anode body despite the large surface area of the sintered bodies.
The present invention comprises a process for producing spray powders containing chromium nitride, comprising the following steps: a) preparing or providing an alloy powder comprising i) at least 10% by weight of chromium, and ii) at least 10% by weight of one or more additional elements (A) selected from the sub-groups IIIA to IIB of the periodic table as well as B, AL, Ti, Si, Ti, Ga, C, Ge, P and S, b) nitriding the powder in the presence of nitrogen under formation of CrN and/or Cr2N.
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
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
C23C 4/10 - Oxides, borides, carbides, nitrides or silicidesMixtures thereof
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
21.
METHOD FOR PRODUCING SPRAY POWDERS CONTAINING CHROMIUM NITRIDE
The present invention relates to a method for producing sintered spray powders containing chromium nitride, comprising the following steps: a) preparing a powder mixture (A) comprising i) a powder (B) containing one or more components selected from the group consisting of Cr, CrN and Cr2N, and ii) a powder (C) comprising one or more components selected from the group consisting of nickel, cobalt, a nickel alloy, a cobalt alloy and an iron alloy, b) solid phase sintering of the powder mixture (A) in a gas atmosphere containing nitrogen while forming or enriching or stabilizing CrN.
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
C22C 1/05 - Mixtures of metal powder with non-metallic powder
C22C 29/16 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on nitrides
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
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
B22F 5/02 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of piston rings
22.
METALLIC CRUCIBLES AND METHODS OF FORMING THE SAME
In various embodiments, a precursor powder is pressed into an intermediate volume and chemically reduced, via sintering, to form a metallic shaped article. In a further embodiment the invention concerns a method of fabricating a shaped article having a target set of final dimensions and consisting essentially of molybdenum, the method comprising the pressing of an ammonium-based molybdenum-precursor powder, in particular ammonium dimolybdate, and a stepwise sintering process, defining four different temperature levels. In a further aspect, embodiments of the invention feature a method of treating a shaped article. An additive is disposed on at least one surface of a shaped article including or consisting essentially of one or more metals. In yet a further aspect, embodiments of the invention feature a crucible that includes or consists essentially of an inner layer consisting essentially of an alloy of molybdenum and tungsten, an outer layer consisting essentially of molybdenum, and therebetween, a zone consisting essentially of a graded concentration of molybdenum and tungsten.
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor
B22F 3/04 - Compacting only by applying fluid pressure
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
C30B 11/00 - Single-crystal-growth by normal freezing or freezing under temperature gradient, e.g. Bridgman- Stockbarger method
C30B 35/00 - Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure
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
23.
MULTI-BLOCK SPUTTERING TARGET WITH INTERFACE PORTIONS AND ASSOCIATED METHODS AND ARTICLES
A sputtering target that includes at least two consolidated blocks, each block' including an alloy including a first metai (e.g., a refractory metal such as molybdenum in an amount greater than about 30 percent by weight) and at least one additional alloying ingredient; and a joint between the at least two consolidated blocks:, the joint being prepared free of any microstructure derived from a diffusion bond of an added loose powder. A process for making the target includes hot isostatically pressing (e.g., below a temperature of 1080°C), consolidated preform blocks that, prior to pressing, have interposed between- the consolidated powder metal blocks at least one continuous solid interface portion. The at least one continuous solid interface portion may include a cold spray body, which may be a mass of cold spray deposited powders on a surface a block, a sintered preform,, a compacted powder body {e.g,, a tile), or any combination thereof.
In various embodiments, used sputtering targets are refurbished at least in part by maintaining a large obliquity angle (300) between the spray-deposition gun (320) and the depressed surface contour (330) of the target during spray deposition of the target material.
The present invention pertains to the field of production of anodes. The present invention more particularly relates to a method for producing distortion-free anodes by means of stencil or screen printing on thin tantalum or niobium foils. The present invention also relates, furthermore, to anodes obtainable by the method of the invention.
The present invention relates to a method for producing a component, comprising the step of sintering a composition consisting of hard material particles and binder metals, and to a component that can be obtained by means of such a method. In addition, the invention relates to the use of the component under highly erosive and/or abrasive conditions, preferably as a chisel in road construction, as part of a drill bit or as a wear part, for example, as a plate used for protecting surfaces.
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
The present invention relates to cermet powders, to a method for producing a cermet powder and to use of the cermet powders for surface coating and as thermal spraying powder. The invention further relates to a method for producing a coated component, comprising the application of a coating by thermal spraying of the cermet powder, and also to a coated component which is obtainable by the method.
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 9/02 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes
29.
METHOD FOR PRODUCING ELECTROLYTIC CAPACITORS FROM VALVE METAL POWDERS
The invention relates to a method for producing an anode for electrolytic capacitors, wherein the method comprises the following steps: a.) pressing a tantalum powder around a tantalum wire or a tantalum band or a tantalum sheet in order to form a compact; b.) sintering the compact in order to form a porous sintered body; c.) cooling the sintered body; d.) treating the porous sintered body with one or more gaseous or liquid oxidants; and e.) anodically oxidizing the treated sintered body in an electrolyte in order to form a dielectric layer.
The present invention relates to a mixed oxide catalyst containing a support material and active catalyst components, a method for producing the mixed oxide catalyst, and also use thereof as shift catalyst.
B01J 38/12 - Treating with free oxygen-containing gas
B01J 23/94 - Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the iron group metals or copper
C01B 3/00 - HydrogenGaseous mixtures containing hydrogenSeparation of hydrogen from mixtures containing itPurification of hydrogen
C01B 3/16 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide using catalysts
The present invention relates to a process for producing a composite, which comprises sintering a composition containing a) at least one hardness carrier and b) a base binder alloy comprising α) from 66 to 93% by weight of nickel, ß) from 7 to 34% by weight of iron and Y) from 0 to 9% by weight of cobalt, where the proportions by weight of the base binder all add up to 100% by weight.
C22C 29/00 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides
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 sputtering target that includes at least two consolidated blocks, each block including an alloy including molybdenum in an amount greater than about 30 percent by weight and at least one additional alloying ingredient; and a joint between the at least two consolidated blocks, the joint being free of any microstructure due to an added bonding agent (e.g., powder, foil or otherwise), and being essentially free of any visible joint line that is greater than about 200 μm width (e.g., less than about 50 pm width). A process for making the target includes hot isostatically pressing, below a temperature of 1080 °C, consolidated perform blocks that may be surface prepared (e.g.,, roughened to a predetermined roughness value) prior to pressing.
The invention relates to a rod roller unit which is suitable for conveying a steel strip in a hot-dipping tank, as well as to a method for the production of same. In addition, the invention relates to the use of the rod roller unit for conveying a steel strip in a hot-dipping tank, use in a hot-dipping method, and to a hot-dipping method which uses said rod roller unit.
C23C 2/00 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor
34.
PROCESS FOR PRODUCING A PURE-PHASE MULTISUBSTANCE SYSTEM, CERAMIC MATERIAL BASED ON THE PURE-PHASE MULTISUBSTANCE SYSTEM, AND MOULDING AND COMPOSITE FORMED THEREFROM
The invention relates to a process for producing a homogeneous multisubstance system based on hydroxide and/or oxide, especially a homogeneous multisubstance system with a rod-shaped morphology, said multisubstance system comprising a first refractory metal from the group of Mo, W, Nb, Re, Zr, Hf, V and Ta, and a second refractory metal from the group of Mo, W, Nb, Re, Zr, Hf, V and Ta, the first and/or second refractory metal being present as a fluoro complex, especially H2 NbF7, H2 TaF7, HSbF6, H2ZrF6, H2SiF6, H3AIF6. The invention further relates to a ceramic material according to the inventive process and to a moulding formed from the ceramic material and a corresponding composite.
C04B 35/495 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
C04B 35/626 - Preparing or treating the powders individually or as batches
H01G 9/042 - Electrodes characterised by the material
The invention relates to a nozzle, in particular a Laval nozzle (805), for use in a fluidized bed opposed jet mill, wherein the nozzle has a nozzle body made of ceramic material (822) and a fluid passage (833). The invention further relates to the use of the nozzle in a fluidized bed opposed jet mill and to the use of the nozzle in the milling of hard materials.
The invention is directed at sputter targets including 50 atomic % or more molybdenum, a second metal element of titanium, and a third metal element of chromium or tantalum, and deposited films prepared by the sputter targets. In a preferred aspect of the invention, the sputter target includes a phase that is rich in molybdenum, a phase that is rich in titanium, and a phase that is rich in the third metal element.
The invention is directed at sputter targets including 50 atomic % or more molybdenum, a second metal element of niobium or vanadium, and a third metal element selected from the group consisting of titanium, chromium, niobium, vanadium, and tantalum, wherein the third metal element is different from the second metal element, and deposited films prepared by the sputter targets. In a preferred aspect of the invention, the sputter target includes a phase that is rich in molybdenum, a phase that is rich in the second metal element, and a phase that is rich in the third metal element.
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor
C22C 27/04 - Alloys based on tungsten or molybdenum
38.
DISPERSION, METHOD FOR PRODUCING SAME, AND USE THEREOF
The invention relates to dispersions comprising carbide particles and at least one organic binder and/or at least one plasticizer, wherein the carbide particles comprise an inner core of cemented tungsten carbide and an outer shell of tungsten carbide, to a method for producing such dispersions and to the use thereof for surface coating components subject to wear or for producing drilling bits.
B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
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
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
B32B 7/02 - Physical, chemical or physicochemical properties
C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
B23K 35/26 - Selection of soldering or welding materials proper with the principal constituent melting at less than 400°C
B23K 35/32 - Selection of soldering or welding materials proper with the principal constituent melting at more than 1550°C
B23K 35/36 - Selection of non-metallic compositions, e.g. coatings, fluxesSelection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
The invention relates to a method for producing workpieces that are coated with silicon nitride, to the workpieces, and to the components that can be obtained from the workpieces.
C30B 35/00 - Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure
40.
METHOD FOR PRODUCING FUNCTIONAL LAYERS ON THE SURFACES OF WORKPIECES, FUNCTIONAL LAYER PRODUCED IN THIS WAY AND CORRESPONDING WORKPIECE
The invention relates to a method for producing functional layers, in particular wear protection and/or anti-corrosion layers, on the surfaces of workpieces. The aim of the invention is to provide possibilities for producing functional layers on workpiece surfaces, wherein a wide variety of functional layers can be produced easily, flexibly and cost-effectively and no influence of the actual workpiece material is triggered. In the method according to the invention, a film-shaped preliminary product formed of a polymer, with metal particles being embedded in said product, is positioned with respect to a surface region of a workpiece to be provided with a functional layer and brought in contact with the surface. Subsequently, the surface is irradiated with a laser beam or electron beam, while simultaneously performing a relative movement of the workpiece and laser or electron beam. During the irradiation, organic components of the preliminary product are thermally decomposed and the metal is at least partially melted, whereby the functional layer is formed. The thermal decomposition starts prior to the melting.
A niobium or niobium alloy which contains pure or substantially pure niobium and at least one metal element selected from the group consisting of Ru, Rh, Pd, Os, Ir, Pt, Mo, W and Re to form a niobium alloy that is resistant to aqueous corrosion. The invention also relates to the process of preparing the niobium alloy.
The present invention relates to sinter bodies for producing pots for producing silicon that is suitable for producing semiconductors, wherein the pot comprises a plurality of components and has at least one unclosed joint gap.
C30B 35/00 - Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure
The invention relates to a solid-electrolyte capacitor anode based on niobium oxide, to a method for producing such an anode by forming an anode base body and sintering to form an anode body, and to a method for producing solid-electrolyte capacitors having an anode made of niobium oxide.
The invention relates to a pre-product for the production of sintered metallic components, to a method for producing the pre-product and to the production of components. The aim of the invention is to create capabilities for producing sintered metallic components that enable increased physical density and reduced contraction on the finish-sintered component. In a pre-product for the production of sintered metallic components according to the invention, an enveloping layer is formed on a core that is formed from a first particle of a first metallic powder. The enveloping layer is formed by a second powder and a binder. The first powder has a particle size d90 of at least 50 μm and the second powder has a particle size d90 smaller than 25 μm. The pre-product is in powder form.
The invention relates to the preparation and use of a particular grade of magnesium diboride which can be used as superconducting material in filled wires.
The invention relates to the use of binder alloy powders containing molybdenum to produce sintered hard metals based on tungsten carbide, wherein the binder alloy powder used has an FSSS value of 0.5 to 3 μm measured with the "Fisher Sub-Sieve Sizer" device according to the ASTM B330 standard, and comprises 0.1 to 65 wt % of iron, 0.1 to 99.9 wt % of cobalt, and 0.1 to 99.9 wt % of nickel, and contains 0.1 to 10 wt % of Mo in alloyed form.
C22C 29/00 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides
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
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
B22F 9/16 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes
B22F 9/20 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from solid metal compounds
B22F 9/22 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
The present application relates to wear-resistant films containing hard material particles having a metal casing, and solder material particles selected from the group of soft solders, hard solders, or high-temperature solders, to the use of the wear-resistant films, and to a method for the production thereof by means of film casting method.
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 35/36 - Selection of non-metallic compositions, e.g. coatings, fluxesSelection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
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
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 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
49.
VALVE METAL AND VALVE METAL OXIDE AGGLOMERATE POWDERS AND METHOD FOR THE PRODUCTION THEREOF
The invention relates to valve metal and valve metal oxide agglomerate powders suited particularly for the production of solid electrolyte capacitors, having high skeleton density after sintering the same into highly porous sintered bodies, which is to say which have only few closed pores. The agglomerate powders have good compactibility and an excellent gliding coefficient depending on the specific surface.
Refractory metal powders are dehydrided in a device which includes a preheat chamber for retaining the metal powder fully heated in a hot zone to allow diffusion of hydrogen out of the powder. The powder is cooled in a cooling chamber for a residence time sufficiently short to prevent re-absorbtion of the hydrogen by the powder. The powder is consolidated by impact on a substrate at the exit of the cooling chamber to build a deposit in solid dense form on the substrate.
The present invention relates to a valve metal oxide formulation having organic excipients, wherein the molding pressure necessary for achieving a green density of at least 50% of the theoretic density is 200 MPa or higher, and the force required for the destruction of the blank is 10 MPa or higher in the axial and radial direction, and to a method for the production thereof.
The invention relates to a process for producing pure ammonium perrhenate by reacting perrhenic acid with ammonia, and also to high-purity ammonium perrhenate.
The invention relates to a novel process for producing electrolytic capacitors having a low leakage current (also known as residual current), electrolytic capacitors produced by this process and also the use of such electrolytic capacitors.
Alloys comprising: (a) molybdenum present in a majority portion; (b) niobium present in an alloying amount; and (c) a third metal selected from the group consisting of nickel, chromium, titanium, zirconium, hafnium, vanadium and mixtures thereof, wherein the third metal is present in a doping amount; along with sputtering targets prepared therewith, films sputtered using such targets and thin film devices containing such films.
An electrolyte for an electrolyte-supported fuel cell having high performance and high mechanical strength is provided, which substantially comprises a zirconium (IV) oxide (= ZrO2), which is doped using ytterbium (III) oxide (= Yb2O3), wherein the proportion of said ytterbium(III)oxide is 3.5 – 6.5 mol-%, relative to said zirconium(IV)oxide, and the thermal expansion coefficient of said electrolyte material at 800°C is in the range of 10.6*10-6 K-1 to 11.1*10-6 K-1.
The invention relates to novel catalyst powders comprising powder particles that include a core made of a supporting material, on the surface of which particles made of metal compounds that have a catalyst activity and a mean transverse size of 10 to 200 nm are arranged, the powder particles made of supporting material being agglomerated in a spheroidal porous manner. The invention further relates to methods for producing said catalyst powders and their use for producing carbon nanotubes and/or fibres.
The invention relates to a novel refractory metal powder, comprising less than 200 ppm metal impurities, having a homogenous distribution and being made of non-spherical particles with irregular, plate-like, needle-like or flake-like shape, to a method for the production thereof and to the use thereof.
C22C 27/04 - Alloys based on tungsten or molybdenum
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 9/22 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
Metallic materials consisting essentially of a conductive metal matrix, preferably copper, and a refractory dopant component selected from the group consisting of tantalum, chromium, rhodium, ruthenium, iridium, osmium, platinum, rhenium, niobium, hafnium and mixtures thereof, preferably in an amount of about 0.1 to 6 % by weight based on the metallic material, alloys of such materials, sputtering targets containing the same, methods of making such targets, their use in forming thin films and electronic components containing such thin films.
The invention relates to a metal powder mixture and particularly advantageous uses of such a metal powder mixture. It is common to use such metal powder mixtures made of metal and metal alloy powders in order to be able to produce active agents with a certain alloy composition. The aim of the invention is to provide a metal powder mixture, by means of which a material may be obtained that is formed from a metal alloy subsequent to a heat treatment in a cost-effective manner, in that the individual alloy- or metal-forming components (alloy and element powders) are distributed in a more homogenous manner. In a second aspect the invention seeks to reduce the maximum temperature required for the production of the material during heat treatment. The metal powder mixture is formed from at least two different powder fractions. A first metal is contained in the first powder fraction, wherein the beginning of a phase conversion takes place in conjunction with the further alloy components contained therein at a temperature that is at least 200 K lower than the beginning of the melting of a material to be formed from the metal powder mixture by means of heat treatment. The first powder fraction has a mean particle size of less than 45 μm. A second powder fraction is formed with a second metal, and has a mean particle size of less than 10 μm.
The present invention relates to pulverulent compounds of the formula NiaMbOx(OH)y, a process for preparing them and also their use as active material for nickel metal hydride batteries and/or as precursor for the preparation of lithium compounds for use in secondary lithium batteries.
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
C22C 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
The present invention relates to powdered compounds of the formula NiaM1 bM2c(O)x(OH)y, a method for the production thereof, and the use thereof as precursor materials for producing lithium compounds for use in lithium secondary batteries.
B22F 9/22 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
66.
METHODS AND APPARATUS FOR CONTROLLING TEXTURE OF PLATES AND SHEETS BY TILT ROLLING
Methods and apparatus for rolling metal sheet or plate (3) are provided. The method comprises the step of feeding the metal plate or sheet (3) into a rolling mill (1, 2) at an angle. The apparatus comprises a rolling mill having a tilted feed table (4), or an apron upon which a transfer table and tilted feed table can rest. Through- thickness gradient and shear texture can be improved using the methods and apparatus of the invention.
B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
67.
REFRACTORY METAL PLATES WITH IMPROVED UNIFORMITY OF TEXTURE
A refractory metal plate is provided. The plate has a center, a thickness, an edge, a top surface and a bottom surface, and has a crystallographic texture (as characterized by through thickness gradient, banding severity; and variation across the plate, for each of the texture components 100 / / ND and 111 / / ND, which is substantially uniform throughout the plate.
B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
C22F 1/18 - High-melting or refractory metals or alloys based thereon
B22F 3/18 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by using pressure rollers
68.
FINE GRAINED, NON BANDED, REFRACTORY METAL SPUTTERING TARGETS WITH A UNIFORMLY RANDOM CRYSTALLOGRAPHIC ORIENTATION, METHOD FOR MAKING SUCH FILM, AND THIN FILM BASED DEVICES AND PRODUCTS MADE THERE FROM
The invention relates to a sputtering target which has a fine uniform equiaxed grain structure of less than 44 microns, no preferred texture orientation as measured by electron back scattered diffraction ('EBSD') and that displays no grain size banding or texture banding throughout the body of the target. The invention relates a sputtering target with a lenticular or flattened grain structure, no preferred texture orientation as measured by EBSD and that displays no grain size or texture banding throughout the body of the target and where the target has a layered structure incorporating a layer of the sputtering material and at least one additional layer at the backing plate interface, said layer has a coefficient of thermal expansion ('CTE') value between the CTE of the backing plate and the CTE of the layer of sputtering material. The invention also relates to thin films and their use of using the sputtering target and other applications, such as coatings, solar devices, semiconductor devices etc. The invention further relates to a process to repair or rejuvenate a sputtering target.
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
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 tantalum or tantalum alloy which contains pure or substantially pure tantalum and at least one metal element selected from the group consisting of Ru, Rh, Pd, Os, Ir, Pt, Mo, W and Re to form a tantalum alloy that is resistant to aqueous corrosion. The invention also relates to the process of preparing the tantalum alloy.
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
71.
REFRACRORY METAL TOOL FOR FRICTION STIR WELDING COMPRISING A SHOULDER MADE OF TUNGSTEN, MOLYBDENUM, TANTALUM, NIOBIUM OR HAFNIUM ALLOY AND A COATED OR TREATED SURFACE
A tool for friction stir welding or forming is provided. The tool comprises a shoulder portion (40b) and optionally a pin portion (5Ob)1 the shoulder portion (40b) comprised of at least 60% by weight and up to 100% by weight of tungsten, molybdenum, tantalum, niobium or hafnium, the balance being alloying materials, if used. The tool has at least one surface treatment or coating. Articles welded by the tools are also provided.
B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
A method for producing ammonium heptamolybdate is disclosed, wherein the back extraction or desorption of molybdenum from a molybdenum-containing organic phase with an ammonia-containing solution is carried out such that on complete back extraction or desorption the resulting back extraction or desorption solution can be subjected directly to a cooled crystallisation of ammonium heptamolybdate without additional and energy-costly intermediate steps.
A method for production of ammonium paratungstate tetrahydrate by thermal treatment of ammonium paratungstate decahydrate in aqueous suspension is disclosed. The ammonium paratungstate tetrahydrate can be produced with high purity and high yield. The production method may furthermore be carried out in a simple and energy-efficient manner.
A method for continuous production of ammonium paratungstate hydrates by back extraction of a tungsten-containing organic phase with an aqueous ammonia solution. It is possible to directly produce coarse crystalline ammonium paratungstate hydrates on back extraction by selection of suitable method parameters. The above crystallise in high purity and in high yield. The production method can be carried out in a simple and energy-efficient manner.
The invention relates to a formulation which contains at least one hard material powder and at least two binder metal powders. Said formulation is characterized in that the cobalt is completely contained in the first binder metal powder and is prealloyed with one or more elements of groups 3 to 8 of the periodic system of elements, which are elements of the fourth period, and that at least one additional binder metal powder of the group of elementary powders including Fe, Ni, Al, Mn, Cr or the alloys thereof with each other is contained therein and the additional binder metal powders do not contain any cobalt in non-prealloyed form.
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
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
76.
HIGH DENSITY REFRACTORY METALS & ALLOYS SPUTTERING TARGETS
The present invention is directed to a process for producing high density, refractory metal products via a press/sintering process. The invention is also directed to a process for producing a sputtering target and to the sputtering target so produced.
The present invention is directed a molybdenum alloy consisting essentially of a) molybdenum present in a major amount, b) tantalum and tungsten as major metal alloy additions and c) a minor amount of an element selected from the group consisting of boron, hafnium, carbon and mixtures thereof. The invention is also directed to an X-ray tube anode composed of a molybdenum alloy body having a focal track thereon, with the body consisting essentially of the above-described molybdenum alloy.
The present invention is directed to a process for joining tantalum clad steel structures. The process broadly comprises: a) providing a first tantalum clad section, said first tantalum clad section comprising a tantalum layer over a steel layer, with a bonding layer optionally therebetween, with a portion of said steel layer in an edge region not being covered by said tantalum layer or said bonding layer, b) providing a second tantalum clad section, said second tantalum clad section comprising a tantalum layer over a steel layer, with a bonding layer optionally therebetween, with a portion of said steel layer in an edge region not being covered by said tantalum layer or said bonding layer, c) locating said steel edge regions adjacent each other, d) welding the steel edge regions together, e) cold spraying a tantalum powder onto the welded edge regions and over the tantalum layers adjacent said edge regions thereby joining the tantalum clad steel sections. The invention is also directed to tantalum welds or joints formed by cold spraying tantalum powder.
C23C 24/04 - Impact or kinetic deposition of particles
C23C 24/08 - Coating starting from inorganic powder by application of heat or pressure and heat
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
B23K 5/10 - Welding workpieces essentially comprising layers of different metals, e.g. plated workpieces
B23K 9/23 - Arc welding or cutting taking account of the properties of the materials to be welded
The invention relates to a seal (10) for gas-tight connection of two elements (12) of a fuel cell stack, having an electrically non-conductive spacing component (16) and having at least one soldered component (18) which is solid or viscous over its entire extent at the operating temperature of the fuel cell stack and couples the spacing component (16) to at least one of the elements of the fuel cell stack to be connected, in a gas-tight manner. The invention provides for the spacing component (16) to be composed of ceramic. The invention also relates to a fuel cell stack in which, according to the invention, a force flow which compresses the fuel cell stack in the axial direction from the distance component (16) acts directly on at least one of the elements (12) to be connected. The invention also relates to a method for producing seals (10) and a fuel cell stack.
An apparatus (200) for interfacing with a restricted access computer (10) includes a data storage component (202), a peripheral component (204), and an interface controller (206). The interface controller (206) enables electronic communication between the peripheral component (204) and the computer (10) and between the data storage component (202) and the computer (10). The interface controller (206) communicates data to the computer (10) indicating to the computer (10) that the computer (10) is operable to interact with the peripheral component using software already installed on the computer (10). The computer (10) automatically executes a computer program stored on the data storage component (202) of the apparatus (200) that enables the computer (10) to transparently encrypt and decrypt data via a biometricaily secure process.
C22C 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
B22F 9/22 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
82.
TITANIUM OXIDE-BASED SPUTTERING TARGET FOR TRANSPARENT CONDUCTIVE FILM, METHOD FOR PRODUCING SUCH FILM AND COMPOSITION FOR USE THEREIN
The present invention is directed to a composition consisting essentially of: a) from about 80 to about 99 moie% of TiO2, and b) from about 1 to about 20 mole % of one or more materials selected from the group consisting of i) WO2, ii) Ta2O5, iii) Nb2O5, iv) MoO2, v) Mo, vi) Ta, vii) Nb, viii) W and ix) mixtures thereof, wherein the mole %s are based on the total product and wherein the sum of components a) and b) is 100. The invention is also directed to the sintered product of such composition, a sputtering target made from the sintered product and a transparent electroconductive film made from the composition.
C04B 35/46 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on titanium oxides or titanates
The present invention is directed to an improved process for manufacturing a rotary anode for an x-ray tube, said rotary anode comprising a molybdenum support member on which a target layer consisting essentially of tungsten or a tungsten-rhenium alloy is provided by plasma spraying, the improvement comprising: a) preheating the support member to a temperature of from 1150°C to 1600°C, b) placing the support member in a gaseous atmosphere containing hydrogen and having a pressure of from 0.5 to 0.9 bars and wherein hydrogen is present in a molar ratio of hydrogen to tungsten dioxide of from 5:1 to 50:1, and c) plasma spraying the target layer onto the support layer in said gaseous atmosphere. The invention is also directed to the anode produced by the process.
Disclosed is a method of applying coatings to surfaces, wherein a gas flow forms a gas-powder mixture with a powder of a material selected from the group consisting of niobium, tantalum, tungsten, molybdenum, titanium, zirconium, nickel, cobalt, iron, chromium, aluminium, silver, copper, mixtures of at least two thereof or their alloys with at least two thereof or with other metals, the powder has a particle size of from 0.5 to 150 μm, an oxygen content of less than 500 ppm oxygen and a hydrogen content of less than 500 ppm, wherein a supersonic speed is imparted to the gas flow and the jet of supersonic speed is directed onto the surface of an object. The coatings prepared are used, for example, as corrosion protection coatings.
The present invention is directed to a composition consisting essentially of: a) from about 60 to about 99 mole% of SnO2, and b) from about 1 to about 40 mole% of one or more materials selected from the group consisting of i) Nb2O5, ii) NbO, iii) NbO2, iv) WO2, v) a material selected consisting of a) a mixture of MoO2 and Mo and b) Mo, vi) W, vii) Ta2O5, and viii) mixtures thereof, wherein the mole %s are based on the totai product and wherein the sum of components a) and b) is 100. The invention is aiso directed to the sintered product of such composition, a sputtering target made from the sintered product and a transparent electroconductive film made from the composition.
C04B 35/457 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zinc, tin or bismuth oxides or solid solutions thereof with other oxides, e.g. zincates, stannates or bismuthates based on tin oxides or stannates
C03C 17/245 - Oxides by deposition from the vapour phase
The present invention is directed to a process for the preparation of a metal powder having a purity at least as high as the starting powder and having an oxygen content of 10 ppm or less comprising heating said metal powder containing oxygen in the form of an oxide, with the total oxygen content being from 50 to 3000 ppmf in an inert atmosphere at a pressure of from 1 bar to 10-7 to a temperature at which the oxide of the metal powder becomes thermodynamically unstable and removing the resulting oxygen via volatilization. The metal powder is preferably selected from the group consisting of tantalum, niobium, molybdenum, hafnium, zirconium, titanium, vanadium, rhenium and tungsten. The invention also relates to the powders produced by the process and the use of such powders in a cold spray process.
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
The present invention relates to a metal powder mixture that is suitable for producing sintered bodies. The powder mixture is suitable as a binder for hard metals and contains: a) at least one prealloyed powder selected from the group comprising iron/nickel, iron/cobalt, iron/nickel/cobalt and nickel/cobalt; b) at least one elemental powder selected from the group comprising iron, nickel and cobalt or a prealloyed powder selected from the group comprising iron/nickel, iron/cobalt, iron/nickel/cobalt and nickel/cobalt that is different from component (a).
C22C 29/00 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides
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
The invention relates to a novel process for preparing polythiophenes, especially conductive polythiophenes, and to the use of specific organic peroxides as oxidizing agents in the oxidative polymerization of thiophenes.
C08G 61/12 - Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
H01B 1/12 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances organic substances
The invention relates to oligomeric organic compounds and to mixtures thereof with macromolecular compounds having a core-shell structure and/or monomeric linear compounds, which have improved semiconductive properties, and to their use in electronic components.
B05B 7/14 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
B05B 1/00 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
92.
SEMIFINISHED PRODUCTS WITH A STRUCTURED SINTER-ACTIVE SURFACE AND A PROCESS FOR THEIR PRODUCTION
The invention comprises semifinished products with a structured surface, the semifinished product comprising an oxidized and subsequently re-reduced surface containing at least one refractory metal, and also a process for their production and their use for producing high-capacitance components.
The invention relates to a powdery zirconium oxide containing metal oxides from the group of scandium, yttrium, rare earths and/or the mixtures thereof. The invention also relates to a method for their production and to their use in fuel cells, in particular for producing electrolyte substrates for ceramic fuel cells.
The invention relates to a method of recovering molybdenum from a molybdenum bearing sulfide material. The material is contacted with a leaching solution in the presence of iron compounds and mesophilic or thermophilic iron oxidizing microorganisms and subsequently, a leaching process is performed by controlling the molar ratio of dissolved ferric iron to dissolved molybdenum. Preferably, a high amount and molar excess of dissolved iron is used. The presence of high concentrations of ferric iron in bioleach solutions allows iron-oxidizing microorganisms to grow and oxidize iron and bioleach molybdenite at dissolved Mo concentrations as high as 4.4 g/L. Organic metabolites were not required for protecting cells from Mo toxicity. Maximum dissolution rates depend on reactor configuration, with agglomerated material simulating heap leaching of almost 1% Mo/day, but up to 10.2% Mo/day in suspension/stirred reactor configurations, with rate highly dependent on temperature within the range of 25°C to 40°C. The ultimate extent of Mo removal from the molybdenum bearing sulfide material is 89%. Finally, molybdenum is recovered from a leach residue of the leaching process.
The invention relates to mixtures of metal, alloy, or composite powders having a mean particle diameter D50 of no more than 75, preferably of no more than 25 쎽m, the mixtures being produced according to a method in which an initial powder is processed to form platelet-shaped particles, the particles then being comminuted in the presence of grinding aids, using further additives, particularly cobalt powder, and to the use of said powder mixtures and formed objects produced thereof.
The invention relates to mixtures of metal powder, alloy powder, or composite powder having an average particle diameter D50 of no more that 75, preferably a maximum of 25 &mgr;m, that are produced according to said method. According to said method, a starting powder is initially transformed into platelet-shaped particles and said particles are comminuted in the presence of a grinding aid. Said mixtures also comprise additional agents (for example, element powder from iron). The invention also relates to the use of said power mixtures and to the thus produced articles.
The invention relates to mixtures of metal powder, alloy powder, or composite powder having an average particle diameter D50 of no more that 75, preferably a maximum of 25 &mgr;m, that are produced according to said method. According to said method, a starting powder is initially transformed into platelet-shaped particles and said particles are comminuted in the presence of a grinding aid. Said mixtures also comprise additional agents (for example, element powder from nickel). The invention also relates to the use of said power mixtures and to the thus produced articles.
The invention relates to a method for decomposing superalloys, especially superalloy scraps in an alkali metal salt bath and then recovering the precious metals, very precious metals such as tungsten, tantalum, and rhenium being recovered.
A solid electrolytic capacitor is disclosed. The capacitor comprises an organophosphorus material (3) positioned between the dielectric layer (2) and the polymeric electrolyte layer (4). The organophosphorus compound improves the interlayer adhesion between the dielectric and electrolyte layers.
