COATING MATERIAL AND SOLIDIFIED PRODUCT OF COATING MATERIAL 

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A coating material (20) includes ceramic particles (22) and a binder (24). The ceramic particles (22) include a compound expressed by one compositional formula among AaRbAlcO4, AaRbGacO4, RxAlyO12, and RxGayO12. Here, A is one or more elements selected from the group consisting of Ca, Sr, and Ba, and R is one or more elements selected from the group consisting of the rare-earth elements. Additionally, a is 0.9 to 1.1, b is 0.9 to 1.1, c is 0.9 to 1.1, x is 2.9 to 3.1, and y is 4.9 to 5.1. The ceramic particles (22) include voids, and the porosity of the ceramic particles (22) is 20% to 40%.