Two independent heating steps are currently involved for fabricating carbon fiber/ceramic composites, which include carbonization of fibers and ceramization of ceramic precursors with carbonized fibers together. In this work, silk fabric and silkworm cocoon were used as carbonaceous precursors for fabricating carbonized fiber/ceramic composites through one-step heating processing. This one-step manufacturing method achieved both the carbonization of silk fabric/silkworm cocoon and the formation of mullite simultaneously under nitrogen environment. The as-prepared composite based on three-layer silk fabric reached over 100 °C after 30 s when a voltage of 10 V was applied, and achieved a stabilized temperature of 239 °C after 540 s. The obtained composites also showed stable cyclic heating property, homogeneous heat distribution and electromagnetic shielding properties. These results implicate the great potential for the developed silk-ceramic composites and inspire the further design of silk-based materials for electro-thermal conversion.

当前涉及制造碳纤维/陶瓷复合材料的两个独立的加热步骤，包括纤维的碳化和陶瓷前体与碳化纤维一起的陶瓷化。在这项工作中，丝织物和蚕茧被用作碳质前体，用于通过一步加热工艺制造碳化纤维/陶瓷复合材料。这种一步制造方法在氮气环境下同时实现了真丝织物/蚕茧的碳化和莫来石的形成。当施加10 V电压时，基于三层丝织物的合成复合物在30 s后达到100°C，并在540 s后达到239°C的稳定温度。所得复合材料还显示出稳定的循环加热性能，均匀的热分布和电磁屏蔽性能。这些结果暗示了开发的丝-陶瓷复合材料的巨大潜力，并激发了用于电热转换的丝基材料的进一步设计。