Journal
APPLIED MATERIALS TODAY
Volume 22, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apmt.2020.100911
Keywords
Thermal metamaterials; Thermal manipulation; Two-phase media; Micro-particles; Smart devices
Categories
Funding
- National Natural Science Foundation of China [51675122, 51822503]
- Shanghai Aerospace Science and Technology Innovation Fund [SAST2016023]
- PetroChina Innovation Foundation [2018D-5007-0305]
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Conventional methods for manipulating heat flow are limited by a balance between tunable capability and thermal conductivity, while a novel approach using reconfigurable thermal metamaterial is proposed to enhance the responsiveness and efficiency of thermal fields. Precise and reconfigurable thermal coding/decoding information transmission is demonstrated with multiple thermal particles regulating units.
Conventional methods for manipulating heat flow are restricted by a trade-off between tunable capability and efficient thermal conductivity. Herein, we report a novel method to manipulate thermal fields by using a reconfigurable two-phase thermal metamaterial composed of a translucent liquid and controllable micro magnetic particles. The thermal behavior as a function of the components of two-phase media is predicted on the basis of coupled radiative and conductive theory. The response of the thermal field can be efficiently tuned by the radial distribution of discrete microparticles. Precise and reconfigurable thermal coding/decoding information transmission is demonstrated by using multiple thermal particles regulating units. Our work should lead to the development of platforms for manipulating physical fields with multi-scale and multi-domain applications, which can be analogized to optics and acoustics. This work pioneers physical manipulations and should aid in the development of smart functional devices with micromanipulators for multiple physical environments. (c) 2020 Elsevier Ltd. All rights reserved.
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