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Preparation method of low-loss high-antioxidant silicon carbide fiber reinforced zirconium oxide-zirconium tungstate ceramic composite material
The invention provides a preparation method of a low-loss high-oxidation-resistance silicon carbide fiber reinforced zirconium oxide-zirconium tungstate ceramic composite material. The preparation method comprises the following steps: preparation of a SiC-coated SiO2 core-shell structure, preparation of the SiC-coated SiO2 core-shell structure with a lanthanum oxide film deposited on the surface, preparation of low-loss high-oxidation-resistance silicon carbide fibers, ball milling, dry pressing and sintering. The invention also provides the low-loss high-antioxidant silicon carbide fiber reinforced zirconium oxide-zirconium tungstate ceramic composite material prepared by the method. The ceramic composite material provided by the invention is prepared by compounding zirconium oxide and zirconium tungstate, zirconium oxide is a positive expansion coefficient material, zirconium tungstate is a negative expansion coefficient material, the combined material has an extremely low expansion coefficient, and the mechanical property of the material is prevented from being reduced due to expansion in a high-temperature environment.
本发明提供低损耗高抗氧化碳化硅纤维增强氧化锆‑钨酸锆陶瓷复合材料的制备方法，包括以下步骤：SiC@SiO2核壳结构的制备、表面沉积氧化镧薄膜的SiC@SiO2核壳结构的制备、低损耗高抗氧化碳化硅纤维的制备、球磨、干压成型、烧结。本发明还提供了上述方法制得的低损耗高抗氧化碳化硅纤维增强氧化锆‑钨酸锆陶瓷复合材料。本发明提供的陶瓷复合材料为氧化锆‑钨酸锆复合而得，氧化锆为正膨胀系数材料，钨酸锆为负膨胀系数材料，组合后的材料膨胀系数极低，避免了高温环境下膨胀导致材料力学性能下降。
Preparation method of low-loss high-antioxidant silicon carbide fiber reinforced zirconium oxide-zirconium tungstate ceramic composite material
The invention provides a preparation method of a low-loss high-oxidation-resistance silicon carbide fiber reinforced zirconium oxide-zirconium tungstate ceramic composite material. The preparation method comprises the following steps: preparation of a SiC-coated SiO2 core-shell structure, preparation of the SiC-coated SiO2 core-shell structure with a lanthanum oxide film deposited on the surface, preparation of low-loss high-oxidation-resistance silicon carbide fibers, ball milling, dry pressing and sintering. The invention also provides the low-loss high-antioxidant silicon carbide fiber reinforced zirconium oxide-zirconium tungstate ceramic composite material prepared by the method. The ceramic composite material provided by the invention is prepared by compounding zirconium oxide and zirconium tungstate, zirconium oxide is a positive expansion coefficient material, zirconium tungstate is a negative expansion coefficient material, the combined material has an extremely low expansion coefficient, and the mechanical property of the material is prevented from being reduced due to expansion in a high-temperature environment.
本发明提供低损耗高抗氧化碳化硅纤维增强氧化锆‑钨酸锆陶瓷复合材料的制备方法，包括以下步骤：SiC@SiO2核壳结构的制备、表面沉积氧化镧薄膜的SiC@SiO2核壳结构的制备、低损耗高抗氧化碳化硅纤维的制备、球磨、干压成型、烧结。本发明还提供了上述方法制得的低损耗高抗氧化碳化硅纤维增强氧化锆‑钨酸锆陶瓷复合材料。本发明提供的陶瓷复合材料为氧化锆‑钨酸锆复合而得，氧化锆为正膨胀系数材料，钨酸锆为负膨胀系数材料，组合后的材料膨胀系数极低，避免了高温环境下膨胀导致材料力学性能下降。
Preparation method of low-loss high-antioxidant silicon carbide fiber reinforced zirconium oxide-zirconium tungstate ceramic composite material
低损耗高抗氧化碳化硅纤维增强氧化锆-钨酸锆陶瓷复合材料的制备方法
HOU ZHENHUA (author) / WU DI (author)
2022-04-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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