Thermal conductivity of materials under pressure
Thermal conductivity of materials under pressure
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DOI：
10.1038/s42254-022-00423-9
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发表时间：
2022-02
影响因子：
38.5
通讯作者：
Yan Zhou;Zuo-Yuan Dong;W. Hsieh;A. Goncharov;Xiao-Jia Chen
中科院分区：
文献类型：
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作者：
Yan Zhou;Zuo-Yuan Dong;W. Hsieh;A. Goncharov;Xiao-Jia Chen
材料的热导率对于许多实际应用是极其重要的，例如在理解地球的热平衡和历史、设备的能量转换和电子设备的热管理方面。然而，在压力下测量材料的热导率和理解相关的热传输机制仍然是高压研究中最困难的挑战和复杂的课题。突破性的高压实验技术使得能够在极端压力-温度条件下原位测量热导率。这种新的能力不仅提供了一个独特的见解，了解材料中的热传输机制，但也有机会实现可逆调制材料的热性能。在这篇综述中，我们讨论了在高压下开发的表征技术，在确定气体，液体和固体的热导率，以及在建立相关的热传输机制的最新进展。此外，我们专注于高压和高温实验模拟地球内部材料的应用。
The thermal conductivities of materials are extremely important for many practical applications, such as in understanding the thermal balance and history of the Earth, energy conversion of devices and thermal management of electronics. However, measurements of the thermal conductivity of materials under pressure and understanding of associated thermal transport mechanisms remain some of the most difficult challenges and complex topics in high-pressure research. Breakthroughs in high-pressure experimental techniques enable in situ measurements of thermal conductivity at extreme pressure–temperature conditions. This new capability provides not only a unique insight to understand thermal transport mechanisms in materials but also opportunities to realize reversible modulation of materials’ thermal properties. In this Review, we discuss recent progresses in characterization techniques developed at high pressures, in the determination of the thermal conductivity of gases, liquids and solids, as well as in establishing the correlated thermal transport mechanisms. In addition, we focus on the applications of high-pressure and high-temperature experimental simulations of materials in the Earth’s interior.