发明名称 |
Thermally-stabilized thermal barrier coating |
摘要 |
A thermal barrier coating (TBC 26 ) and method for forming the TBC ( 26 ) on a component ( 10 ) characterized by a stabilized microstructure that resists grain growth, sintering and pore coarsening or coalescence during high temperature excursions. The TBC ( 26 ) contains elemental carbon and/or a carbon-containing gas that increase the amount of porosity ( 32 ) initially within the TBC ( 26 ) and form additional fine closed porosity ( 32 ) within the TBC ( 26 ) during subsequent exposures to high temperatures. A first method involves incorporating elemental carbon precipitates by evaporation into the TBC microstructure. A second method is to directly incorporate an insoluble gas, such as a carbon-containing gas, into an as-deposited TBC ( 26 ) and then partially sinter the TBC ( 26 ) to entrap the gas and produce fine stable porosity within the TBC ( 26 ).
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申请公布号 |
US6998172(B2) |
申请公布日期 |
2006.02.14 |
申请号 |
US20020064791 |
申请日期 |
2002.08.16 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
MOVCHAN BORIS A.;RUDOY YURIY E.;NERODENKO LEONELLA M.;DAROLIA RAMGOPAL;SPITSBERG IRENE;THOMPSON ANTHONY MARK;JOHNSON CURTIS ALAN;WORTMAN DAVID JOHN |
分类号 |
B32B3/26;C23C8/02;C23C14/06;C23C28/00;F01D5/28 |
主分类号 |
B32B3/26 |
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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