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Strong-ablation-resistant rare earth modified ultra-high-temperature ceramic-based composite material and preparation method thereof
The invention relates to a strong-ablation-resistant rare earth modified ultra-high-temperature ceramic-based composite material and a preparation method thereof. The rare earth modified ultra-high-temperature ceramic-based composite material comprises a fiber preform, a mixed phase of ultra-high-temperature ceramic and rare earth oxide and a carbide matrix, wherein the mixed phase and the carbide matrix are sequentially formed on the surface of the fiber preform; and the content of the fiber preform is 15-50 vol%, the volume content of the mixed phase of the ultrahigh-temperature ceramic and the rare earth oxide is 16-50 vol%, and the content of the carbide matrix is 10-40 vol%.
本发明涉及一种抗强烧蚀的稀土改性超高温陶瓷基复合材料及其制备方法。所述稀土改性超高温陶瓷基复合材料包括：纤维预制体、依次形成在纤维预制体表面的超高温陶瓷和稀土氧化物的混合相及碳化物基体；所述纤维预制体的含量为15vol%～50vol%，所述超高温陶瓷和稀土氧化物的混合相的体积含量为16vol%～50vol%，碳化物基体的含量为10vol%～40vol%。
Strong-ablation-resistant rare earth modified ultra-high-temperature ceramic-based composite material and preparation method thereof
The invention relates to a strong-ablation-resistant rare earth modified ultra-high-temperature ceramic-based composite material and a preparation method thereof. The rare earth modified ultra-high-temperature ceramic-based composite material comprises a fiber preform, a mixed phase of ultra-high-temperature ceramic and rare earth oxide and a carbide matrix, wherein the mixed phase and the carbide matrix are sequentially formed on the surface of the fiber preform; and the content of the fiber preform is 15-50 vol%, the volume content of the mixed phase of the ultrahigh-temperature ceramic and the rare earth oxide is 16-50 vol%, and the content of the carbide matrix is 10-40 vol%.
本发明涉及一种抗强烧蚀的稀土改性超高温陶瓷基复合材料及其制备方法。所述稀土改性超高温陶瓷基复合材料包括：纤维预制体、依次形成在纤维预制体表面的超高温陶瓷和稀土氧化物的混合相及碳化物基体；所述纤维预制体的含量为15vol%～50vol%，所述超高温陶瓷和稀土氧化物的混合相的体积含量为16vol%～50vol%，碳化物基体的含量为10vol%～40vol%。
Strong-ablation-resistant rare earth modified ultra-high-temperature ceramic-based composite material and preparation method thereof
一种抗强烧蚀的稀土改性超高温陶瓷基复合材料及其制备方法
DONG SHAOMING (author) / CHEN BOWEN (author) / NI DEWEI (author) / DING YUSHENG (author) / ZHANG XIANGYU (author)
2021-10-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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