发明授权
- 专利标题： Method for applying or repairing thermal barrier coatings
- 专利标题（中）： 涂覆或修复热障涂层的方法
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申请号： US10426280申请日： 2003-04-30
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公开(公告)号： US07094450B2公开(公告)日： 2006-08-22
- 发明人: Bangalore Aswatha Nagaraj , Eva Zielonka Lanman , Deborah Anne Schorr , Thomas John Tomlinson , Raymond William Heidorn , David Allen Kastrup , Craig Douglas Young
- 申请人： Bangalore Aswatha Nagaraj , Eva Zielonka Lanman , Deborah Anne Schorr , Thomas John Tomlinson , Raymond William Heidorn , David Allen Kastrup , Craig Douglas Young
- 申请人地址： US NY Schenectady
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 当前专利权人地址： US NY Schenectady
- 代理机构： Jagtiani & Guttag
- 代理商 Eric W. Guttag; David L. Narcisco
- 主分类号： C23C4/06
- IPC分类号： C23C4/06 ; C23C4/10
摘要：
A method applying a thermal barrier coating to a metal substrate, or for repairing a thermal barrier coating previously applied by physical vapor deposition to an underlying aluminide diffusion coating that overlays the metal substrate. The aluminide diffusion coating is treated to make it more receptive to adherence of a plasma spray-applied overlay alloy bond coat layer. An overlay alloy bond coat material is then plasma sprayed on the treated aluminide diffusion coating to form an overlay alloy bond coat layer. A ceramic thermal barrier coating material is plasma sprayed on the overlay alloy bond coat layer to form the thermal barrier coating. In the repair embodiment of this method, the physical vapor deposition-applied thermal barrier coating is initially removed from the underlying aluminide diffusion coating.