Efficient heat conducting liquid metal/CNT pads with thermal interface materials

Bulletin of Materials Science

XUECHEN CHEN^1,3¹  SHENG CHU^1,2²  GUANG CHU^4³  LIUYING ZHAO^1,2⁴ 

[1] School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510275, People’s Republic of China^3;School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, People’s Republic of China^2;School of Metallurgy and Environment, Central South University, Changsha 410083, People’s Republic of China^4;State Key Laboratory of Optoelectronic Materials and Technologies, School of Material Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, People’s Republic of China^1

关键词: Liquid metal;    gallium oxide;    carbon nanotubes;    thermal conductivity;    heat-dissipation.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Ga-Based thermal interface material (TIM) pads/sheets with high thermal conductivity ($\kappa$) are indispensable components in thermal management systems. Here, we present a feasible method to fabricate heat conduction pads, which are composed of carbon nanotubes embedded into a liquid metal (LM). This setup has resulted in a large increase of $\kappa$ reaching $\sim$14.2 W mK$^{−1}$, greater than that of most of the commercial thermal silicone pads ($\sim$5 W mK$^{−1}$). In addition, a series of experiments were conducted on smartphones to evaluate the heat dissipation performance of the CPU. It turned out that LM/nanotube pads with TIMs show distinguish thermal conductivity performance.

【 授权许可】

CC BY