| 摘要 |
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.
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