Iron-based composition for magnetocaloric effect (MCE) applications and method of making a single crystal
US9255343B2 · kind B2 · utility
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9References
18Claims
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Key dates
| Filing date | Mar 8, 2013 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Jun 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/015
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of making a single crystal comprises heating a material comprising magnetic anisotropy to a temperature T sufficient to form a melt of the material. A magnetic field of at least about 1 Tesla is applied to the melt at the temperature T, where a magnetic free energy difference ΔGm between different crystallographic axes is greater than a thermal energy kT. While applying the magnetic field, the melt is cooled at a rate of about 30° C./min or higher, and the melt solidifies to form a single crystal of the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.