Article of manufacture having a metal substrate with an oxide la

Details Article of manufacture having a metal substrate with an oxide la Article of manufacture having a metal substrate with an oxide la

1999-01-25

2000-10-03

Speer, Timothy M.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428633, 428668, 428678, 428680, 428469, 428472, 428701, 428702, 416241B, B23B 1504, F01D 528

Patent

active

061270482

ABSTRACT:
An article of manufacture includes a substrate and an anchoring layer disposed on a surface of the substrate. The substrate is capable of developing a first oxide on the surface which is tightly bonded thereto and includes a first metallic element. Alternatively, the surface is formed of the first oxide. The anchoring layer is formed with a ternary oxide of the first metallic element, a second metallic element and oxygen. A second oxide layer, which contains an oxide of the second metallic element, is disposed on the anchoring layer. The anchoring layer is formed on the substrate in a series of process steps, which include: establishing an atmosphere containing oxygen around the article; evaporating a compound of the first metallic element and a compound of the second metallic element into the atmosphere and forming a ternary gas phase containing the first metallic element, the second metallic element and the oxygen; and precipitating the ternary gas phase on the article.

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Patent Abstracts of Japan No. 63-274751 (Noritaka et al.), dated Nov. 11, 1988.
"The development of reaction products at the interface between partially stabilized zirconia and the MCrAIY bond coat in thermal barrier coatings" (Lee et al.), 1075 Revue de Metallurgie, No. 5, May 1991, Paris.

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