发明名称 |
Segmented abradable ceramic coating |
摘要 |
A segmented abradable ceramic coating system having superior abradability and erosion resistance is disclosed. The system includes a duct segment having a metallic substrate, a MCrAlY bond coat on the substrate and a segmented abradable ceramic coating on the bond coat. The segmented abradable ceramic coating includes a base coat foundation layer, a graded interlayer and an abradable top layer for an overall thickness of preferably about 50 mils (1.270 mm). The coating is characterized by a plurality of vertical microcracks. By precisely controlling the deposition parameters, composition of the layers and layer particle morphology, segmentation is achieved, as well as superior abradability and erosion resistance.
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申请公布号 |
US6102656(A) |
申请公布日期 |
2000.08.15 |
申请号 |
US19950534146 |
申请日期 |
1995.09.26 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
NISSLEY, DAVID M.;HARTER, HAROLD D.;GODIN, DANIEL R.;FOSTER, GEORGE E. |
分类号 |
F01D11/08;C09K3/10;C23C4/02;F01D5/28;F01D11/12;F02C7/28;(IPC1-7):F01D5/00;F01D11/02;B22D25/00;C03C27/02 |
主分类号 |
F01D11/08 |
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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