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

  • Liuying ZhaoEmail author
  • Sheng Chu
  • Xuechen Chen
  • Guang Chu
Article
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Abstract

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 \(\hbox {W mK}^{-1}\), greater than that of most of the commercial thermal silicone pads (\({\sim }5~\hbox {W mK}^{-1})\). 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.

Keywords

Liquid metal gallium oxide carbon nanotubes thermal conductivity heat-dissipation 

Notes

Acknowledgements

The authors acknowledge financial support from the National Science Foundation of China (Grant Nos. 11204097 and U1530120).

Supplementary material

12034_2019_1872_MOESM1_ESM.docx (1.1 mb)
Supplementary material 1 (docx 1129 KB)

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Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  • Liuying Zhao
    • 1
    • 2
    Email author
  • Sheng Chu
    • 1
    • 2
  • Xuechen Chen
    • 1
    • 3
  • Guang Chu
    • 4
  1. 1.State Key Laboratory of Optoelectronic Materials and Technologies, School of Material Science and EngineeringSun Yat-Sen UniversityGuangzhouPeople’s Republic of China
  2. 2.School of Materials Science and EngineeringSun Yat-Sen UniversityGuangzhouPeople’s Republic of China
  3. 3.School of Electronics and Information TechnologySun Yat-Sen UniversityGuangzhouPeople’s Republic of China
  4. 4.School of Metallurgy and EnvironmentCentral South UniversityChangshaPeople’s Republic of China

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