| 简介 |
A coating material includes a ceramic particle and binder. The ceramic particle includes a compound represented by a compositional formula of any of AaRbAlcO4, AaRbGacO4, RxAlyO12, and RxGayO12. A is one or more elements selected from a group consisting of Ca, Sr, and Ba, and R is one or more elements selected from a group consisting of rare earth elements. a is equal to or greater than 0.9 and equal to or less than 1.1, b is equal to or greater than 0.9 and equal to or less than 1.1, c is equal to or greater than 0.9 and equal to or less than 1.1, x is equal to or greater than 2.9 and equal to or less than 3.1, and y is equal to or greater than 4.9 and equal to or less than 5.1. The ceramic particle includes a pore and the porosity of the ceramic particle is equal to or greater than 20% and equal to or less than 40%. |
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