| 简介 |
A thermal barrier coating material having a lower thermal conductivity than rare earth stabilized zirconia materials. A thermal barrier coating material comprising mainly a compound represented by composition formula (1) : Ln1-xTaxO1.5+x wherein 0.13≤x≤0.24, and Ln represents one or more elements selected from the group consisting of Sc, Y and the lanthanoid elements. Also, a thermal barrier coating material comprising mainly a compound represented by composition formula (2) : Ln1-xNbxO1.5+x wherein 0.13≤x≤0.24, and Ln represents one or more elements selected from the group consisting of Sc, Y and the lanthanoid elements. Also, a thermal barrier coating material comprising mainly a cubic compound having a fluorite structure represented by composition formula (3) : Ln3NbO7 wherein Ln represents one or more elements selected from the group consisting of Sc, Y and the lanthanoid elements. |
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