发明名称 |
AQUEOUS SLURRY FOR THE PRODUCTION OF THERMAL AND ENVIRONMENTAL BARRIER COATINGS AND PROCESSES FOR MAKING AND APPLYING THE SAME |
摘要 |
An improved slurry formulation for the production of a thermal and environmental barrier coatings are provided which can withstand high temperature applications. The slurry includes a combination of a coarse ceramic powder fraction having close porosity particles and a fine ceramic powder fraction. The combination of the two powders produces a bimodal particle size distribution having a controlled amount of closed porosity that imparts desirable properties to the coating produced. The finer solid particles are interdispersed within an aqueous binder to produce a ceramic matrix with sufficient mechanical strength. The closed porosity containing coarse particles are embedded within the resultant ceramic matrix and do not disintegrate under high temperature conditions to impart a temperature resistant, non-collapsing closed porosity to the coating which can also act as an environmental barrier.. |
申请公布号 |
WO2013096477(A1) |
申请公布日期 |
2013.06.27 |
申请号 |
WO2012US70668 |
申请日期 |
2012.12.19 |
申请人 |
PRAXAIR S.T. TECHNOLOGY, INC. |
发明人 |
BELOV, VLADIMIR, V.;BELOV, IRINA |
分类号 |
C23C24/08;C23C24/10 |
主分类号 |
C23C24/08 |
代理机构 |
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