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专利名称：Gas turbine shroud with ceramic abradable
coatings
发明人：Kojima, Yoshitaka,Arikawa, Hideyuki,Mebata,
Akira,Kasuya, Tadashi,Doi, Hiroyuki,Ichikawa,Kunihiro
申请号：EP11151974.0申请日：20110125公开号：EP2354276A1公开日：20110810
专利附图：
摘要：There is provided a gas turbine shroud including a ceramic abradable coating
used as a gap adjusting component that can reduce a fluid leakage from a gap andincrease turbine efficiency. A gas turbine ceramic abradable coating includes a bond layer(2), a thermal barrier ceramic layer (3), and a porous ceramic abradable layer (4) (hardnessmay be RC15Y: 80±3). A slit groove (5) is provided in the porous ceramic abradable layer(4) by machining. A width of a rectangular section of the ceramic abradable layer (4)divided by the slit groove (5) may be set to a range of 2 to 7 mm.
申请人：Hitachi Ltd.
地址：6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo 100-8280 JP
国籍：JP
代理机构：Beetz & Partner
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