Thermal characterization of expanded graphite and its composites

被引：0
|
作者：
L. L. Vovchenko
L. Yu. Matzui
A. A. Kulichenko
机构：
[1] Shevchenko National University,
来源：
Inorganic Materials | 2007年 / 43卷
关键词：
Thermal Conductivity; Graphite Particle; Compression Direction; Expanded Graphite; Graphite Layer;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Using the guarded hot plate method, we have measured the thermal conductivity of compressed expanded graphite (EG) samples (densities from 0.4 to 1.95 g/cm3) along the compression direction (c axis) in the range 150–675 K and that of EG/epoxy composites (5–75 wt % EG) in the range 150–425 K. We also have measured the specific heat of EG samples at temperatures from 200 to 675 K. Their c-axis thermal diffusivity has been shown to decrease with increasing EG density. The thermal conductivity of the EG/epoxy composites and its variation with EG content are well represented by a rule of mixtures that takes into account the anisotropy in the thermal conductivity of the EG particles and their preferential alignment in the composites.
引用
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页码：597 / 601
页数：4
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