新型炭材料2019，Vol.34Issue(1)：39-44,6.DOI:10.1016/S1872﹣5805(19)60002﹣8
高温处理对中间相沥青基炭纤维结构与热导率的影响
The evolution of microstructure and thermal conductivity of mesophase pitch﹣based carbon fibers with heat treatment temperature
摘要
Abstract
The evolution of microstructure and morphology of mesophase pitch﹣based carbon fibers (MPCFs) with heat treatment temperature (HTT) was investigated by SEM, TEM, Raman spectroscopy and XRD. The thermal conductivity of the MPCFs was examined by a modified 3ω method. Results indicate that the degree of graphitization and the thermal conductivity of the MPCFs in﹣crease with HTT. The thermal conductivity of the MPCFs reaches 518 W/m·K at a HTT of 3000 ℃. The thermal conductivity of MPCFs varies linearly with HTT in two distinct ranges, 1000﹣2000 and 2300﹣3000℃, that respectively correspond to the growth and orientation of graphite crystallites.关键词
中间相沥青基炭纤维/结构/热导率/高温处理Key words
MPCFs/Structure/Thermal conductivity/Heat treatment分类
化学化工引用本文复制引用
樊桢,曹敏,杨文彬,朱世鹏,冯志海..高温处理对中间相沥青基炭纤维结构与热导率的影响[J].新型炭材料,2019,34(1):39-44,6.基金项目
国家自然科学基金委-中石油联合基金项目( U1362107 ) （ U1362107 ）
国家自然科学基金委-山西煤基低炭联合基金项目(U1810116). （U1810116）
