作者：Pengpeng Liang; Yingnan Cao; Gang Wang; Bingbing Fan; Binbin Dong; Hongxia Li
作者單位：School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China;State Key Laboratory of Advanced Refractories, Sinosteel Luoyang Institute of Refractories Research Co., Ltd., Luoyang, 471039, China;Luoyang Institute of Science and Technology, Luoyang, Hennan, 471023, China
刊名：Ceramics International
ISSN：0272-8842
出版年：2024-10-10
卷：50
期：21
起頁(yè)：43362-43365
止頁(yè)：
分類(lèi)號(hào)：
語(yǔ)種：英文
關(guān)鍵詞：SiC aerogels;Near-net-shape fabrication;Thermal insulation;High-temperature stability
內(nèi)容簡(jiǎn)介SiC aerogels are excellent porous materials with extensive application prospects. However, their ultra-low density and extremely low strength make them challenging to process. Near-net-shape fabrication is crucial to overcome the manufacturing difficulties of SiC aerogels with complex-shaped. In this work, we propose a novel method for preparing near-net-shape SiC aerogels through the in-situ carbonisation of Si, enabling the fabrication of aerogels with complex geometries. The as-prepared SiC aerogels consist of SiC nanowires (SiCnw) and SiC nanoparticles (SiCnp), which have ultra-low density, excellent thermal insulation, and robust high-temperature stability.
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