Efficient heat conducting liquid metal/CNT pads with thermal interface materials
2019
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.
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