Iron-based composition for magnetocaloric effect (MCE) applications and method of making a single crystal
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 .DELTA.G.sub.m 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.degree. C./min or higher, and the melt solidifies to form a single crystal of the material.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1241337
- Patent Number(s):
- 9255343
- Application Number:
- 13/790,560
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01F - MAGNETS
C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2013 Mar 08
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Evans, III, Boyd Mccutchen, Kisner, Roger A., Ludtka, Gail Mackiewicz, Ludtka, Gerard Michael, Melin, Alexander M., Nicholson, Donald M., Parish;, Chad M., Rios, Orlando, Sefat, Athena S., West, David L., and Wilgen, John B. Iron-based composition for magnetocaloric effect (MCE) applications and method of making a single crystal. United States: N. p., 2016.
Web.
Evans, III, Boyd Mccutchen, Kisner, Roger A., Ludtka, Gail Mackiewicz, Ludtka, Gerard Michael, Melin, Alexander M., Nicholson, Donald M., Parish;, Chad M., Rios, Orlando, Sefat, Athena S., West, David L., & Wilgen, John B. Iron-based composition for magnetocaloric effect (MCE) applications and method of making a single crystal. United States.
Evans, III, Boyd Mccutchen, Kisner, Roger A., Ludtka, Gail Mackiewicz, Ludtka, Gerard Michael, Melin, Alexander M., Nicholson, Donald M., Parish;, Chad M., Rios, Orlando, Sefat, Athena S., West, David L., and Wilgen, John B. Tue .
"Iron-based composition for magnetocaloric effect (MCE) applications and method of making a single crystal". United States. https://www.osti.gov/servlets/purl/1241337.
@article{osti_1241337,
title = {Iron-based composition for magnetocaloric effect (MCE) applications and method of making a single crystal},
author = {Evans, III, Boyd Mccutchen and Kisner, Roger A. and Ludtka, Gail Mackiewicz and Ludtka, Gerard Michael and Melin, Alexander M. and Nicholson, Donald M. and Parish;, Chad M. and Rios, Orlando and Sefat, Athena S. and West, David L. and Wilgen, John B.},
abstractNote = {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 .DELTA.G.sub.m 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.degree. C./min or higher, and the melt solidifies to form a single crystal of the material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {2}
}
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