发明申请
US20100159262A1 DURABLE THERMAL BARRIER COATING COMPOSITIONS, COATED ARTICLES, AND COATING METHODS
审中-公开
耐久热障涂层组合物，涂层制品和涂层方法
- 专利标题： DURABLE THERMAL BARRIER COATING COMPOSITIONS, COATED ARTICLES, AND COATING METHODS
- 专利标题（中）： 耐久热障涂层组合物，涂层制品和涂层方法
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申请号： US12338329申请日： 2008-12-18
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公开(公告)号： US20100159262A1公开(公告)日： 2010-06-24
- 发明人: Ming Fu , Brian Thomas Hazel , Brett Boutwell , Tobias A. Schaedler , Curtis Alan Johnson , Don M. Lipkin , Douglas G. Konitzer , Venkat S. Venkataramani
- 申请人： Ming Fu , Brian Thomas Hazel , Brett Boutwell , Tobias A. Schaedler , Curtis Alan Johnson , Don M. Lipkin , Douglas G. Konitzer , Venkat S. Venkataramani
- 主分类号： B32B15/04
- IPC分类号： B32B15/04 ; C04B35/48 ; C23C4/10 ; C23C14/34
摘要：
A composition useful as a thermal barrier coating on a superalloy substrate intended for use in hostile thermal environments. The coating comprises zirconia stabilized in a predominately tetragonal phase. The composition includes a ceramic component consisting essentially of zirconia (ZrO2) or a combination of zirconia and hafnia (HfO2) and a stabilizer component comprising, in combination, a first co-stabilizer selected from YbO1.5, HoO1.5, ErO1.5, TmO1.5, LuO1.5, and combinations thereof, and optionally YO1.5, a second co-stabilizer selected from TiO2, PdO2, VO2, GeO2, and combinations thereof, and a third co-stabilizer comprising TaO2.5. The stabilizer component is present in an amount effective to achieve the predominantly tetragonal phase in the coating.