Thermal barrier coating member, method for producing the same, thermal barrier coating material, gas turbine, and sintered body

There are provided a thermal barrier coating material and a thermal barrier coating member that can suppress spalling when used at a high temperature and have a high thermal barrier effect, a method for producing the same, a turbine member coated with a thermal barrier coating, and a gas turbine. Th...

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Hauptverfasser: MORI KAZUTAKA, NAGANO ICHIRO, KAWATA YUTAKA, TAKAHASHI KOJI, OKADA IKUO, TORIGOE TAIJI, NAMBA KATSUMI
Format: Patent
Sprache:eng
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Zusammenfassung:There are provided a thermal barrier coating material and a thermal barrier coating member that can suppress spalling when used at a high temperature and have a high thermal barrier effect, a method for producing the same, a turbine member coated with a thermal barrier coating, and a gas turbine. The thermal barrier coating member comprises a heat resistant substrate, a bond coat layer formed thereon, and a ceramic layer formed further thereon, wherein the ceramic layer comprises an oxide which consists of an oxide represented by the general formula A2Zr2O7 doped with a predetermined amount of CaO or MgO and has 10 volume % or more of a pyrochlore type crystal structure, where A represents any of La, Nd, Sm, Gd, and Dy.