发明名称 |
Verfahren zur Beschichtung eines thermischen Sperrschichtsystems, sowie beschichteter Gegenstand |
摘要 |
An overcoat (20) is applied over thermal barrier coatings (18) such as YSZ or other columnar grain ceramic. The exposed surface of the TBC (18) is prepared to ensure that it is clean and has a proper roughness. The surface is then heated and an overcoat material such as a solid solution of chromia and alumina is deposited on the exposed surface, for example by plasma spraying to form a continuous overcoat on the TBC. The overcoat (20) is preferably corrosion and erosion resistant, and inhibits the migration of oxygen to the underlying TBC and alumina layer. <IMAGE> |
申请公布号 |
DE69904248(D1) |
申请公布日期 |
2003.01.16 |
申请号 |
DE1999604248 |
申请日期 |
1999.02.04 |
申请人 |
UNITED TECHNOLOGIES CORP., HARTFORD |
发明人 |
BORNSTEIN, NORMAN S.;ZATORSKI, RAYMOND F. |
分类号 |
F02C7/00;C23C4/02;C23C28/00;C23C28/04;(IPC1-7):C23C28/00;C23C30/00 |
主分类号 |
F02C7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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