Abstract The ability to manipulate heat flow has numerous promising benefits in thermal energy applications such as in heat spreader design. This paper introduces a novel thermal functional metamaterials heat spreader with high anisotropy. The metamaterial heat spreader consists of alternating layers of copper/VHTC and PDMS thin films. The effects of the number of bilayers, bilayers’ thermal conductivity ratio, and thermal spreader thickness on the metamaterial lateral heat spreading have been investigated numerically. In comparison to a simple copper heat spreader, results show significant enhancements of the lateral heat spreading with both the copper and VHTC based metamaterial heat spreaders.

中文翻译：

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高各向异性超材料散热器

摘要 控制热流的能力在热能应用（例如散热器设计）中具有许多有前景的好处。本文介绍了一种具有高各向异性的新型热功能超材料散热器。超材料散热器由铜/VHTC 和 PDMS 薄膜的交替层组成。已经数值研究了双层的数量、双层的热导率比和散热器厚度对超材料横向热扩散的影响。与简单的铜散热器相比，结果显示铜和基于 VHTC 的超材料散热器的横向热扩散都有显着增强。