Highly tunable, inexpensive and easily fabricated magnetocaloric materials
US11851731B2 · kind B2 · utility
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Key dates
| Filing date | Dec 20, 2018 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Oct 31, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C2202/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method is provided of making a magnetocaloric alloy composition comprising Ni, Co, Mn, and Ti, which preferably includes certain beneficial substitutional elements, by melting the composition and rapidly solidifying the melted composition at a cooling rate of at least 100 K/second (Kelvin/second) to improve a magnetocaloric property of the composition. The rapidly solidified composition can be heat treated to homogenize the composition and annealed to tune the magneto-structural transition for use in a regenerator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.