发明名称 |
Highly defective oxides as sinter resistant thermal barrier coating |
摘要 |
A thermal barrier coating material formed of a highly defective cubic matrix structure having a concentration of a stabilizer sufficiently high that the oxygen vacancies created by the stabilizer interact within the matrix to form multi-vacancies, thereby improving the sintering resistance of the material. The concentration of stabilizer within the cubic matrix structure is greater than that concentration of stabilizer necessary to give the matrix a peak ionic conductivity value. The concentration of stabilizer may be at least 30 wt. %. Embodiments include a cubic matrix of zirconia stabilized by at least 30-50 wt. % yttria, and a cubic matrix of hafnia stabilized by at least 30-50 wt. % gadolinia.
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申请公布号 |
US6930066(B2) |
申请公布日期 |
2005.08.16 |
申请号 |
US20010010676 |
申请日期 |
2001.12.06 |
申请人 |
SIEMENS WESTINGHOUSE POWER CORPORATION |
发明人 |
SUBRAMANIAN RAMESH |
分类号 |
C23C4/10;C23C28/00;C23C30/00;F01D5/28;F23M5/00;F23R3/00;(IPC1-7):C04B35/48 |
主分类号 |
C23C4/10 |
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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