Thermal barrier hidden body and preparation method and application thereof
The invention belongs to the technical field of spaceflight stealth, and provides a thermal barrier hidden body and a preparation method and application thereof. The thermal barrier hidden body comprises a first ceramic layer, the material of the first ceramic layer comprises a first rare earth meta...
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Sprache: | chi ; eng |
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Zusammenfassung: | The invention belongs to the technical field of spaceflight stealth, and provides a thermal barrier hidden body and a preparation method and application thereof. The thermal barrier hidden body comprises a first ceramic layer, the material of the first ceramic layer comprises a first rare earth metal acid salt, the chemical formula of the first rare earth metal acid salt is AaBbO7, A comprises at least one of La, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y and Sc, B comprises at least one of Zr, Ce, Ti and Hf, 1.56 < = a < = 2.09, and 1.94 < = b < = 2.33; the second ceramic layer is located on the surface of one side of the first ceramic layer, the material of the second ceramic layer comprises second rare earth metal acid salt, the chemical formula of the second rare earth metal acid salt is CcDdO7, C comprises at least one of La, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y and Sc, D comprises at least one of Zr, Ce, Ti and Hf, c is larger than or equal to 1.56 and smaller than or equal t |
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