Microstructure of high thermal conductivity mesophase pitch-based carbon fibers

YE Chong; WU Huang; ZHU Shi-peng; FAN Zhen; HUANG Dong; HAN Fei; LIU Jin-shui; YANG Jian-xiao; LIU Hong-bo

doi:10.1016/S1872-5805(21)60050-1

Volume 36 Issue 5

Sep. 2021

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Article Navigation > New Carbon Mater. > 2021 > 36(5): 980-986

YE Chong, WU Huang, ZHU Shi-peng, FAN Zhen, HUANG Dong, HAN Fei, LIU Jin-shui, YANG Jian-xiao, LIU Hong-bo. Microstructure of high thermal conductivity mesophase pitch-based carbon fibers. New Carbon Mater., 2021, 36(5): 980-986. doi: 10.1016/S1872-5805(21)60050-1

Citation:

YE Chong, WU Huang, ZHU Shi-peng, FAN Zhen, HUANG Dong, HAN Fei, LIU Jin-shui, YANG Jian-xiao, LIU Hong-bo. Microstructure of high thermal conductivity mesophase pitch-based carbon fibers. New Carbon Mater., 2021, 36(5): 980-986. doi: 10.1016/S1872-5805(21)60050-1

Citation:

YE Chong, WU Huang, ZHU Shi-peng, FAN Zhen, HUANG Dong, HAN Fei, LIU Jin-shui, YANG Jian-xiao, LIU Hong-bo. Microstructure of high thermal conductivity mesophase pitch-based carbon fibers. New Carbon Mater., 2021, 36(5): 980-986. doi: 10.1016/S1872-5805(21)60050-1

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Microstructure of high thermal conductivity mesophase pitch-based carbon fibers

doi: 10.1016/S1872-5805(21)60050-1

YE Chong^{1, 2, 3
,},
WU Huang^{1, 2, 3},
ZHU Shi-peng⁴,
FAN Zhen⁴,
HUANG Dong^{1, 2, 3
,
,},
HAN Fei^{1, 3},
LIU Jin-shui^{1, 3
,
,},
YANG Jian-xiao^{1, 3},
LIU Hong-bo^{1, 3}

1.
College of Materials Science and Engineering, Hunan University, Changsha 410082, China
2.
Hunan Province Engineering Research Center for High Performance Pitch Based Carbon Materials, Hunan Toyi Carbon Material Technology Co., Ltd., Changsha 410000, China
3.
Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Changsha 410082, China
4.
Key Laboratory of Advanced Functional Composite Materials, Aerospace Research Institute of Materials and Processing Technology, Beijing 100076, China

Funds: The Innovation and Entrepreneurship Investment Project of Hunan Provincial Science and Technology Department (2018GK5065); Special Fund for Innovative Construction Province of Hunan (2019GK2021, 2019RS2058)

More Information

Author Bio:
叶　崇，博士研究生. E-mail：yec@hnu.edu.cn
Corresponding author: HUANG Dong, Ph. D. E-mail: yellow-east@qq.com; LIU Jin-shui, Ph. D, Professor. E-mail: Jsliu@hnu.edu.cn
Received Date: 2019-08-21
Rev Recd Date: 2019-11-27

Available Online: 2021-03-17

Publish Date: 2021-10-01

Abstract

Abstract

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 stucture. La has more significant impact on the thermal conductivity than Lc. The Raman spectroscopy I_D/I_G 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.
- Microstructure,
- Mesophase pitch,
- Carbon fiber,
- High thermal conductivity

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References(25)

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