为了研究质量分数为15% FeS的Cu-FeS自润滑材料内部结构与导热性能的关联,采用分子动力学的方法,在考虑界面热阻的情况下构建原子模型,对增强相和复合材料导热性能进行模拟研究.结果表明:FeS在600 K,900 K时会发生有利于热传导的结构变化,系统界面热阻随着FeS尺寸的增大而减小,颗粒大于100 nm时,界面热阻趋于G一定值.通过计算所得导热率与实验数值较接近,误差的引起是由于计算没有考虑温度升高对界而结合的破坏、界面的不完整性、基体内部缺陷、弥散相的大小等因素.验证了Hasselman-Johnson方法对于预测该复合材料的合理性.
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