Abstract

A polymer-derived composition and method for providing a ceramic-based precursor coating on a metal surface are disclosed. The composition comprises one or more preceramic polymers admixed with one or more metal particulates. The composition is integrally disposed on and within the metal surface of a metal part through pressure-assisted pyrolysis of a metal particulate-filled preceramic polymer under appropriate conditions, thereby providing a corrosion-resistant and oxidation-resistant metal surface. The precursor coating composition is applied and dried onto the metal surface. The coated steel material is then hot stamped at a pre-defined temperature under a time and pressure conditions sufficient to pyrolyze precursor coating composition to form a protective coating on the surface of the steel. The coated steel material is then cooled. Further, the hot stamping is performed in a period of no more than 1 minute and at a temperature controlled at 400-800° C.

IPC Classes  ?

• C04B 35/589 - Fine ceramics obtained from polymer precursors
• B21D 22/02 - Stamping using rigid devices or tools
• C04B 35/593 - Fine ceramics obtained by pressure sintering
• C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
• C04B 41/45 - Coating or impregnating

Abstract

A polymer-derived composition and method for providing a ceramic-based precursor coating on a metal surface are disclosed. The composition comprises one or more preceramic polymers admixed with one or more metal particulates without organophosphorus compounds or at least substantially without organophosphorus compounds. The composition is integrally disposed on and within the metal surface of a metal part through pressure-assisted pyrolysis of a metal particulate-filled preceramic polymer under appropriate conditions, thereby providing a corrosion-resistant and oxidation-resistant metal surface. The precursor coating composition is applied and dried onto the metal surface. The coated steel material is then hot stamped at a pre-defined temperature under a time and pressure conditions sufficient to pyrolyze precursor coating composition to form a protective coating on the surface of the steel.

IPC Classes  ?

• C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
• C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
• C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron

Goods & Services

INDUSTRIAL CHEMICAL PRODUCTS THAT ORGANICALLY CLEAN, CONDITION AND TREAT METAL IN ORDER TO REDUCE CHEMICAL REACTIVITY, PROTECT AGAINST CONTAMINATION AND INCREASE ELECTRICAL STABILITY