Cooling coating with multi-layer

Abstract

A cooling coating with a multilayer structure comprises a magnetocaloric core layer, a dynamic heat exchange layer, and a photothermal enhancement layer. The magnetocaloric core layer covers a target workpiece and is in contact with the target workpiece. The magnetocaloric core layer at least includes gadolinium-based alloys. The gadolinium-based alloys include gadolinium, gadolinium-yttrium alloy, lanthanum-iron-manganese-silicon alloy, or a combination thereof. The dynamic heat exchange layer is disposed on the magnetocaloric core layer and is in contact with the magnetocaloric core layer. The dynamic heat exchange layer at least includes carbon-based materials and piezoelectric materials. The photothermal enhancement layer is disposed on the dynamic heat exchange layer and is in contact with the dynamic heat exchange layer. The photothermal enhancement layer at least includes transparent conductive oxide and silver nanoparticles, thereby exhibiting photothermal conversion properties and providing electromagnetic interference shielding.

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