材料科学
渗透(认知心理学)
复合材料
热导率
渗流阈值
复合数
热接触电导
有限元法
热膨胀
热的
纳米线
热传导
蒙特卡罗方法
渗流理论
电导率
电阻率和电导率
热阻
纳米技术
热力学
化学
物理
统计
物理化学
神经科学
生物
量子力学
数学
作者
Jinxin Zhong,Qing Xi,Hongjie Jin,Ziqi Wang,Dengke Ma,Jùn Líu,Jun Zhou
摘要
We investigated the thermal conductivity (TC) of a two-dimensional composite consisting of matrices with low TC and nanowire fillers with high TC using the Monte Carlo method and the finite element method. Compared to the electrical percolation that requires direct contact between fillers, an additional thermal transport channel through non-contact fillers is found to be important for the thermal percolation in composites. This additional channel can lead to an effective expansion of thermal percolation network by including extra fillers into the network. Thus, it can be utilized to enhance the TC of the composite that is helpful to improve the performance of thermal interface materials.
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