The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2003
Filed:
Jun. 21, 2000
Dwayne A. Braithwaite, Wallingford, CT (US);
Vincent J. Russo, Derby, CT (US);
Lloyd W. Cannon, Durham, CT (US);
Thomas P. Slavin, Rocky Hill, CT (US);
Howmet Research Corporation, Whitehall, MI (US);
Abstract
Method for forming on a superalloy or other metallic substrate a platinum graded, outward single phase diffusion aluminide coating on a surface of the substrate by depositing a layer comprising Pt on the substrate and then gas phase aluminizing the substrate in a coating chamber having a solid source of aluminum (e.g. aluminum alloy particulates) disposed therein close enough to the surface of the substrate to form at an elevated substrate coating temperature a diffusion aluminide coating having an inner diffusion zone and outer additive single (Ni,Pt)Al phase layer having a concentration of platinum that is relatively higher at an outermost coating region than at an innermost coating region adjacent the diffusion zone.