Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thermal protection material and preparation method thereof
The invention provides a thermal protection material and a preparation method thereof, the material comprises a fiber reinforcement body, a C interface on the surface of the fiber reinforcement body, a SiC matrix and Al2O3 aerogel, the fiber reinforcement body and the C interface on the surface of the reinforcement body are filled and wrapped with the SiC matrix and the Al2O3 aerogel, and the fiber reinforcement body comprises a C fiber prefabricated member and/or a SiC fiber prefabricated member; the volume fraction range of the fiber reinforcement in the thermal protection material is 35-45%; the thickness range of the C interface is 50 nm to 2 [mu] m; the weight percentage of the SiC matrix in the protective material is 50-60%; and the weight percentage of the Al2O3 aerogel in the protective material is 2-5%. The high temperature resistance range of the thermal protection material is 800-1200 DEG C, the low thermal conductivity range is 0.6-1.0 W/m.K, and the bending strength is 80-180 MPa.
本发明提供了一种热防护材料及其制备方法，材料包括纤维增强体、纤维增强体表面的C界面、填充和包裹于纤维增强体和增强体表面C界面的SiC基体和Al2O3气凝胶，纤维增强体包括C纤维预制件和/或SiC纤维预制件；纤维增强体在热防护材料中的体积分数范围为：35‑45%；C界面的厚度范围为50nm~2μm；SiC基体占防护材料的重量百分比为：50‑60%；Al2O3气凝胶占防护材料的重量百分比为：2‑5%。热防护材料的耐高温范围为：800~1200oC、低热导率范围为：0.6‑1.0W/m·K，抗弯强度为：80‑180MPa。
Thermal protection material and preparation method thereof
The invention provides a thermal protection material and a preparation method thereof, the material comprises a fiber reinforcement body, a C interface on the surface of the fiber reinforcement body, a SiC matrix and Al2O3 aerogel, the fiber reinforcement body and the C interface on the surface of the reinforcement body are filled and wrapped with the SiC matrix and the Al2O3 aerogel, and the fiber reinforcement body comprises a C fiber prefabricated member and/or a SiC fiber prefabricated member; the volume fraction range of the fiber reinforcement in the thermal protection material is 35-45%; the thickness range of the C interface is 50 nm to 2 [mu] m; the weight percentage of the SiC matrix in the protective material is 50-60%; and the weight percentage of the Al2O3 aerogel in the protective material is 2-5%. The high temperature resistance range of the thermal protection material is 800-1200 DEG C, the low thermal conductivity range is 0.6-1.0 W/m.K, and the bending strength is 80-180 MPa.
本发明提供了一种热防护材料及其制备方法，材料包括纤维增强体、纤维增强体表面的C界面、填充和包裹于纤维增强体和增强体表面C界面的SiC基体和Al2O3气凝胶，纤维增强体包括C纤维预制件和/或SiC纤维预制件；纤维增强体在热防护材料中的体积分数范围为：35‑45%；C界面的厚度范围为50nm~2μm；SiC基体占防护材料的重量百分比为：50‑60%；Al2O3气凝胶占防护材料的重量百分比为：2‑5%。热防护材料的耐高温范围为：800~1200oC、低热导率范围为：0.6‑1.0W/m·K，抗弯强度为：80‑180MPa。
Thermal protection material and preparation method thereof
一种热防护材料及其制备方法
WANG YANFEI (Autor:in) / LIU XINGYU (Autor:in) / LIU RONGJUN (Autor:in) / WAN FAN (Autor:in) / LI DUAN (Autor:in) / LI JUNSHENG (Autor:in)
13.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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