1. Effects of graphene on the thermal conductivity of pressureless-sintered SiC ceramics.
- Author
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Li, Qisong, Zhang, Yujun, Gong, Hongyu, Sun, Haibin, Li, Teng, Guo, Xue, and Ai, Shuhe
- Subjects
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GRAPHENE , *SILICON carbide , *THERMAL conductivity , *SINTERING , *CERAMIC metals , *ADDITIVES - Abstract
SiC ceramics with graphene additives have been fabricated by a pressureless-sintered method. The effects of graphene contents on the densification, thermal conductivity, electrical conductivity, phase compositions, and microstructure evolutions of the SiC ceramics were investigated in detail. As the graphene content increased from 0 to 5.0 wt%, the relative density of the SiC samples monotonically decreased, the electrical conductivity monotonically increased, whereas the thermal conductivity initially increased and then decreased. The highest thermal conductivity of 145.14 W/(m K) was obtained for SiC sample with 2.0 wt% graphene sintered at 2130 °C for 1 h in Ar. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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