发明授权
- 专利标题: Vanadium resistant coating system
- 专利标题(中): 耐钒涂层系统
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申请号: US12951350申请日: 2010-11-22
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公开(公告)号: US08337996B2公开(公告)日: 2012-12-25
- 发明人: Surinder Singh Pabla , Vinod Kumar Pareek , Suchismita Sanyal , Krishnamurthy Anand , Prajina Bhattacharya
- 申请人: Surinder Singh Pabla , Vinod Kumar Pareek , Suchismita Sanyal , Krishnamurthy Anand , Prajina Bhattacharya
- 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: McNees Wallace & Nurick LLC
- 主分类号: B21D39/00
- IPC分类号: B21D39/00
摘要:
A vanadium resistant coating system resistant to high temperature vanadium attack. The system comprises a high temperature superalloy substrate. A bond coat overlies the superalloy substrate. The bond coat may be applied in multiple layers. A ceramic coating overlies the bond coat. The ceramic coating further comprises a zirconium oxide stabilized by at least one cation selected from the group consisting of Yb3+, Lu3+, Sc3+ and Ce4+, in the amounts of about 5-10 weight percent. An overcoat may overlie the ceramic coating. The overcoat may be a sacrificial layer of YSZ infiltrated with cations having an atomic radius larger than Y3+. Alternatively, the overcoat may comprise zirconium oxide stabilized by Ce4+.
公开/授权文献
- US20120129000A1 VANADIUM RESISTANT COATING SYSTEM 公开/授权日:2012-05-24
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