TiC-modified CNTs as reinforcing fillers for isotropic graphite produced from mesocarbon microbeads

LIN Xiang-bao; CHEN Hui; WU Jing; WU Zhi-gang; LI Run; LIU Hong-bo

doi:10.1016/S1872-5805(21)60067-7

Volume 36 Issue 5

Sep. 2021

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Article Navigation > New Carbon Mater. > 2021 > 36(5): 961-970

LIN Xiang-bao, CHEN Hui, WU Jing, WU Zhi-gang, LI Run, LIU Hong-bo. TiC-modified CNTs as reinforcing fillers for isotropic graphite produced from mesocarbon microbeads. New Carbon Mater., 2021, 36(5): 961-970. doi: 10.1016/S1872-5805(21)60067-7

Citation:

LIN Xiang-bao, CHEN Hui, WU Jing, WU Zhi-gang, LI Run, LIU Hong-bo. TiC-modified CNTs as reinforcing fillers for isotropic graphite produced from mesocarbon microbeads. New Carbon Mater., 2021, 36(5): 961-970. doi: 10.1016/S1872-5805(21)60067-7

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TiC-modified CNTs as reinforcing fillers for isotropic graphite produced from mesocarbon microbeads

doi: 10.1016/S1872-5805(21)60067-7

LIN Xiang-bao^1
,,
CHEN Hui^{1
,
,},
WU Jing¹,
WU Zhi-gang²,
LI Run¹,
LIU Hong-bo^{1
,
,}

1.
College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China
2.
Hunan Changyu Science and Technology Development Co., Ltd. Hunan, Changsha 410063, China

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Author Bio:
林祥宝，硕士. E-mail：18745277983@163.com
Corresponding author: CHEN Hui, Ph. D. Associate professor. E-mail: hnuchh@163.com; LIU Hong-bo, Ph. D. Professor. E-mail: hndxlhb@163.com
Received Date: 2020-02-20
Rev Recd Date: 2020-05-19

Available Online: 2021-06-08

Publish Date: 2021-10-01

Abstract

Abstract

Multi-wall carbon nanotubes (CNTs) were modified by nano-TiC using a pressureless spark plasma sintering technology. The TiC-modified CNTs (T-CNTs) were added to mesocarbon microbeads (MCMBs) to prepare high performance isostatically pressed graphite materials. The structures of the T-CNTs and the prepared isotropic graphite materials were characterized by XRD, SEM and TEM. The mechanical and thermal properties of isotropic graphite reinforced by T-CNTs were measured by a micro-controlled electronic universal testing machine, laser thermal conductivity meter and thermal expansion coefficient meter. Results showed that the nano-TiC was successfully grown on the surface of CNTs. Compared with the isotropic graphite prepared from MCMBs without T-CNTs, the isotropic graphite with T-CNTs has a significant improvement in physical properties (density, open porosity and volume shrinkage). Its flexural strength and degree of graphitization increased by 70% and 10%, respectively, and the thermal properties were also improved to some degree.
- Spark plasma sintering,
- TiC modified carbon nanotubes,
- Mesocarbon microbead,
- Isotropic graphite

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References(35)

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