通过辐射穿观察热效应
Yuxuan Li1, Yongdi Dang1, Sen Zhang1
1The National Key Laboratory of Extreme Optics Technology and Instruments, Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering; International Research Center (Haining) for Advanced Photonics, Zhejiang University, Hangzhou, 310058, China.
Nature communications
|June 27, 2024
概括
研究人员通过实验证明了热转移,这种现象使热流没有净热偏差. 使用相变材料实现的这种效果,为固态技术的先进热管理提供可控制的热.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 热力学是一种热力学.
- 材料科学 材料科学 材料科学
背景情况:
- 热穿,一种没有平均热偏差的非零热流,在非线性热传导和光子介导的热交换中理论上被预测.
- 之前的研究探讨了原子格子和有温度依赖的辐射率的固体中这种效应.
研究的目的:
- 实验验证固态系统中的热转移现象.
- 研究用于实现和控制热转移的相变材料的使用.
- 探索主动热管理中的应用.
主要方法:
- 使用基于相变材料的复合材料.
- 定期调节一个或两个固体的温度.
- 利用温度调节之间的相位延迟来控制热流.
主要成果:
- 实验证明了热转移现象的实现.
- 通过调节一个固体的温度,证明了可控制的热流方向的热.
- 展示了同时调节温度以通过相位延迟控制热传输强度和方向.
结论:
- 热转移效应在相变材料系统中经过实验验证.
- 这种现象为固态设备中的主动热管理提供了一个有前途的途径.
- 潜在的应用包括冷却,隔热和热交换放大.
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