Multifunctional SiC/C hybrid fabric applicable for extreme environment ranging from liquid nitrogen temperature to 1000° C

Creating multifunctional materials that can serve in extreme environments is of critical importance but also a formidable challenge. Herein, we present a simple technique that combines carbothermic reduction and organic template carbonization to produce multifunctional SiC/C hybrid fabrics from inexpensive cotton mats. The obtained fabrics display high resilience to high/low temperature, anti-oxidation, and chemical assault is exhibited. Additionally, the fabric's ultralow thermal conductivity results in superior thermal insulation performance. Notably, these in situ-generated SiC nanowires considerably improve the ductility of the ceramic fabric. The compression strength and the breaking elongation increased by 39% and 2.6%, respectively, as compared to the SiC fabric without grown nanowires. When employed as an electromagnetic interference shielding material, it exhibits an excellent EMI shielding capability with a SE value of 40 dB. This research advances not just the usability of flexible ceramic fabrics in severe environments, but also the creation of fine structures in ceramic materials.