Method of forming a heat-barrier layer on a metal substrate
AssigneeMTU Motoren-und Turbinen-Union Munchen GmbH
InventorsErich Fitzer, Karl Brennfleck, Jurgen Schlichting, deceased
Life of this patent
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Abstract
A method for the application or impregnation of a highly adherent heat-barrier layer on a metal substrate comprising effecting chemical vapor-phase deposition of zirconium dioxide as a heat-barrier layer with infiltration by finely granular zirconium dioxide in a metal felt. The vapor-phase deposition with infiltration of the metal felt can take place, in particular, from zirconium chloride, preferably within a temperature range between 550.degree. C. and 750.degree. C.
Claims9
A method of forming a heat-barrier layer for a dense metal body, said method comprising forming a metal substrate of a porous metal felt, and effecting chemical vapor-phase deposition of zirconium dioxide as a heat-barrier layer by infiltration of finely granular zirconium dioxide in said metal felt in non-uniform distribution from one surface of said metal felt into the interior thereof towards the other surface of the metal felt, the metal substrate being affixable to a dense metal body by attaching said other surface of the infiltrated metal felt to the dense metal body.
Dependencies are inferred from the claim text.