Microstructure of high thermal conductivity mesophase pitch-based carbon fibers

Autor:	Chong Ye, Zhen Fan, Fei Han, Jinshui Liu, Dong Huang, Jianxiao Yang, Hongbo Liu, Wu Huang, Shipeng Zhu
Rok vydání:	2021
Předmět:	Materials science Materials Science (miscellaneous) Mesophase General Chemistry Microstructure symbols.namesake Cross section (physics) Thermal conductivity symbols General Materials Science Graphite Fiber Crystallite Composite material Raman spectroscopy
Zdroj:	New Carbon Materials. 36:980-985
ISSN:	1872-5805
DOI:	10.1016/s1872-5805(21)60050-1
Popis:	The microstructural characteristics of high thermal conductivity mesophase pitch-based carbon fibers were investigated by XRD, Raman spectroscopy, SEM and TEM. The relationship between microstructural characteristics and thermal conductivity is discussed. Results show that the radial structure is always accompanied by a splitting structure. La has more significant impact on the thermal conductivity than Lc. The Raman spectroscopy ID/IG value of the cross section was used as an essential index to evaluate the thermal conductivity of the carbon fibers. The microstructural characteristics including large graphite crystallite size, high preferred orientation along the fiber axis, and few defects contribute to the high thermal conductivity of the carbon fibers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60ef9b4d3df8b28dcf92c5a029e90d57 https://doi.org/10.1016/s1872-5805(21)60050-1 Zobrazit plný text záznamu Full Text from ScienceDirect