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所属单位：材料科学与技术学院

发表刊物：MATERIALS RESEARCH EXPRESS

关键字：SiC nanowires melamine-based carbon foam chemical vapor infilitration SiC-NWs/MCF composites

摘要：SiC-NWs/melamine-based carbon foam composites with ultralow thermal conductivity were fabricated via the chemical vaper infiltration with Ni catalysis. The SiC-NWs/MCF composites possessed a typical structure that the numerous SiC-NWs sprouted out from the porous skeletons of the MCF matrix to fill with MCFs' cells. Results indicated that there the beta-SiC and the delta-Ni2Si existed in the SiC-NWs/MCF composites, where the beta-SiC existed in form of the SiC-NWs and the delta-Ni2Si in the bulk morphology on the node. Meanwhile, it was demonstrated that growth of the SiC-NWs followed the Vapor-Liquid-Solid mechanism. Furthermore, it indicated that the composites foam of SiC-NWs/MCF possessed the ultralow thermal conductivity that they were only 36.1 mW . m(-1) . K-1 (at 100 degrees C) and 55.5 mW . m(-1) . K-1 (at 900 degrees C) respectively.

ISSN号：2053-1591

是否译文：否

发表时间：2019-06-01

合写作者：Zhang Junxiong,Ai Sufeng,Ye Xinli,Guo Shuangquan,Xue Songhai

通讯作者：陈照峰