Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22310
Title: A graphite foam reinforced by graphite particles
Authors: Zhu, J
Wang, X
Guo, L
Wang, Y
Wang, Y
Yu, M
Lau, KT 
Issue Date: 2007
Publisher: Pergamon Press
Source: Carbon, 2007, v. 45, no. 13, p. 2547-2550 How to cite?
Journal: Carbon 
Abstract: Graphite foam was obtained after carbonization and graphitization of a pitch foam formed by the pyrolysis of coal tar based mesophase pitch mixed with graphite particles in a high pressure and temperature chamber. The graphite foam possessed high mechanical strength and exceptional thermal conductivity after adding the graphite particles. Experimental results showed that the thermal conductivity of modified graphite foam reached 110 W/m K, and its compressive strength increased from 3.7 MPa to 12.5 MPa with the addition of 5 wt% graphite particles. Through the microscopic observation, it was also found that fewer micro-cracks were formed in the cell wall of the modified foam as compared with pure graphite foam. The graphitization degree of modified foam reached 84.9% and the ligament of graphite foam exhibited high alignment after carbonization at 1200 °C for 3 h and graphitization at 3000 °C for 10 min.
URI: http://hdl.handle.net/10397/22310
ISSN: 0008-6223
EISSN: 1873-3891
DOI: 10.1016/j.carbon.2007.08.019
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