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US 12,179,266 B2Granted
3D printed magnetocaloric devices with controlled microchannels and magnetic anisotropy and methods of making the same
AssigneeVirginia Commonwealth University
InventorsHong Zhao, Radhika Barua, Ravi L. Hadimani, Lilly Balderson
Life of this patent
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Abstract
A polymer-assisted 3D printing method and ink compositions are used to manufacture magnetocaloric devices having many applications including in heat pumps, refrigerators, etc. The ink compositions and printing methods can produce compositionally graded, anisotropically aligned magnetocaloric architectures with designed pores and channels, to bring forth significant improvement in heat exchange efficiency.
Claims5
An ink formulation, comprising:
- 20-95 wt % solids of magnetocaloric material;
- 5-80 wt % solids of polymeric binder;
- and
- a plurality of solvents comprising each of
- dichloromethane (DCM), ethylene glycol butyl ether (EGBE) and dibutyl phthalate (DBP), 2-butoxyethanol (2-Bu), and polyethylene glycol (PEG), and
- wherein the polymeric binder and one or more solvents have a polymer-to-solvent ratio of 0.01 g/mL-0.5 g/mL.
3 more elements
Dependencies are inferred from the claim text.