发明授权
- 专利标题: Thermal barrier coatings
- 专利标题(中): 热障涂层
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申请号: US11756049申请日: 2007-05-31
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公开(公告)号: US07740948B1公开(公告)日: 2010-06-22
- 发明人: Mary Anne Alvin
- 申请人: Mary Anne Alvin
- 申请人地址: US DC Washington
- 专利权人: The United States of America as represented by the United States Department of Energy
- 当前专利权人: The United States of America as represented by the United States Department of Energy
- 当前专利权人地址: US DC Washington
- 代理商 James B. Potts; Mark P. Dvorscak; Paul A. Gottlieb
- 主分类号: B32B9/00
- IPC分类号: B32B9/00
摘要:
This disclosure addresses the issue of providing a metallic-ceramic overlay coating that potentially serves as an interface or bond coat layer to provide enhanced oxidation resistance to the underlying superalloy substrate via the formation of a diffusion barrier regime within the supporting base material. Furthermore, the metallic-ceramic coating is expected to limit the growth of a continuous thermally grown oxide (TGO) layer that has been primarily considered to be the principal cause for failure of existing TBC systems. Compositional compatibility of the metallic-ceramic with traditional yttria-stabilized zirconia (YSZ) top coats is provided to further limit debond or spallation of the coating during operational use. A metallic-ceramic architecture is disclosed wherein enhanced oxidation resistance is imparted to the surface of nickel-based superalloy or single crystal metal substrate, with simultaneous integration of the yttria stabilized zirconia (YSZ) within the metallic-ceramic overlayer.
公开/授权文献
- US2697692A Emulsion mud 公开/授权日:1954-12-21