首页|Geometrically Engineered Heating Arrays Enabled by Electric-Field-Driven 3D Printing for On-Demand Thermal Patterning
Geometrically Engineered Heating Arrays Enabled by Electric-Field-Driven 3D Printing for On-Demand Thermal Patterning
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Arbitrary and high-precision thermal patterning has long been desired in the field of thermal functional materials.However,existing thermal patterning strategies have not been widely applied,either hampered by the difficulty in fabricating anisotropic metamaterials or limited by complex thermal manipulation.We propose an on-demand thermal patterning scheme that sandwiches geometrically engineered heating arrays between a substrate and an encapsulation layer to form composite structures and control the omnidirectional transfer of the heat flux gen-erated by the heating arrays.These heating arrays are digitally assembled from multiple heater cells of varying widths and continuously printed using electric-field-driven 3D printing.A design strategy for thermal patterning with good uniformity within individual regions and high contrast between regions is proposed.The performance of the on-demand thermal patterning is verified via high-precision thermal printing.The proposed scheme pro-vides a general and reproducible method for designing thermal functional materials,with potential applications in thermochromics,messaging,thermal camouflage,and illusions.
Shien-Ming Wu School of Intelligent Engineering,South China University of Technology,Guangzhou,511442,China
Shandong Engineering Research Center for Additive Manufacturing,Qingdao University of Technology,Qingdao,266520,China
Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing,South China University of Technology,Guangzhou,511442,China
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