Patent Number: 6,255,001

Title: Bond coat for a thermal barrier coating system and method therefor

Abstract: A thermal barrier coating system and a method for forming the coating system on an article. The coating system employs a bond coat of a nickel aluminide alloy over which a thermal-insulating ceramic layer is deposited. The nickel aluminide bond coat contains zirconium, but is otherwise predominantly of the beta (.beta.) NiAl phase. The bond coat is preferably deposited by a physical vapor deposition process to have a fine-grain microstructure and a limited diffusion zone in the article surface.

Inventors: Darolia; Ramgopal (West Chester, OH)

Assignee: General Electric Company

International Classification: C23C 14/16 (20060101); C23C 28/00 (20060101); B32B 015/04 (); C23C 016/00 ()

Expiration Date: 07/03/2018