材料科学
复合材料
陶瓷
微波食品加热
陶瓷基复合材料
反射损耗
热解
吸收(声学)
阻抗匹配
碳纤维
抗压强度
电阻抗
复合数
计算机科学
化学工程
电信
工程类
电气工程
作者
Junjie Qian,Bin Du,Chao He,Mei Cai,Xinrong Zhong,Hao Xiong,S. H. Zeng,Anze Shui
摘要
Abstract The hierarchical SiOC/SiCnws/CF composites (A/B/C structure) were designed via precursor infiltration and pyrolysis process. The SiOC ceramics served as the wave‐transparent characteristic materials to adjust the impedance matching. Herein, the in situ growth of SiCnws not only was used for the absorber but served as the reinforcement of SiOC matrix composites. In detail, the SiOC/SiCnws/CF‐1200°C‐2 exhibits excellent electromagnetic absorption performance with minimum reflection loss of −46 dB at 14.4 GHz with the thickness of 1.6 mm, and its effective absorption band reaches 4.3 GHz. Its compressive strength reaches 8.69 and 16.41 MPa in z and x/y directions, separately. This contribution has a guidance for the application of carbon fiber/ceramics matrix composites in harsh environment.
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