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首页> 外文期刊>Journal of Heat Transfer >On the Linear Temperature Dependence of Phonon Thermal Boundary Conductance in the Classical Limit
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On the Linear Temperature Dependence of Phonon Thermal Boundary Conductance in the Classical Limit

机译:经典极限声子热边界传导的线性温度依赖性

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摘要

We present a new model for predicting thermal boundary conductance in the classical limit. This model takes a different form than those of the traditionally used mismatch theories in the fact that the temperature dependence of thermal boundary conductance is driven by the phononic scattering mechanisms of the materials comprising the interface as opposed to the heat capacities of those materials. The model developed in this work assumes that a phonon on one side of an interface may not scatter at the interface itself but instead scatter with phonons in the adjacent material via the scattering processes intrinsic in the adjacent material. We find that this model is in good agreement with classical molecular dynamics simulations of phonon transport across a Si/Ge interface.
机译:我们提出了一个经典模型中预测热边界电导的新模型。该模型采用与传统失配理论不同的形式,因为热边界传导的温度依赖性是由构成界面的材料的声子散射机制驱动的,而不是那些材料的热容。在这项工作中开发的模型假设界面一侧的声子可能不会在界面本身处散射,而是通过相邻材料中固有的散射过程在相邻材料中与声子一起散射。我们发现该模型与声子跨Si / Ge界面的经典分子动力学模拟非常吻合。

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