Thermal cloak-concentrator

By Xiangying Shen, Ying Li, Jiping Huang, Y. Ni. 2015

135 citations recorded by the source corpus.

For macroscopically manipulating heat flow at will, thermal metamaterials have opened a practical way, which possesses a single function, such as either cloaking or concentrating the flow of heat even though environmental temperature varies. By developing a theory of transformation heat transfer for multiple functions, here we introduce the concept of intelligent thermal metamaterials with a dual function, which is in contrast to the existing thermal metamaterials with single functions. By assembling homogeneous isotropic materials and shape-memory alloys, we experimentally fabricate a kind of intelligent thermal metamaterials, which can automatically change from a cloak (or concentrator) to a concentrator (or cloak) when the environmental temperature changes. This work paves an efficient way for a controllable gradient of heat, and also provides guidance both for arbitrarily manipulating the flow of heat and for efficiently designing similar intelligent metamaterials in other fields.

Subfields: Acoustics and Ultrasonics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/6fdb431a0e1a198c61e6adc8e60dfcde4e31398f

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In Electronic, Optical and Magnetic Materials

1. Jun Wang
2. Fubao Yang
3. Gaole Dai
4. Jiping Huang
5. Shuai Yang

Citations in the corpus

• Controlling macroscopic heat transfer with thermal metamaterials: Theory, experiment and application (2021, background): “[60] fabricated a device with functions of both thermal cloaking and thermal concentrating (switching according to concrete temperatures).”