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US 7,076,959 B2Granted
Enhanced magnetocaloric effect material
AssigneeBrookhaven Science Associates, LLC
InventorLaura J. H. Lewis
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AssigneeBrookhaven Science Associates, LLC
InventorLaura J. H. Lewis
Estimating the term…
A magnetocaloric effect heterostructure having a core layer of a magnetostructural material with a giant magnetocaloric effect having a magnetic transition temperature equal to or greater than 150 K, and a constricting material layer coated on at least one surface of the magnetocaloric material core layer. The constricting material layer may enhance the magnetocaloric effect by restriction of volume changes of the core layer during application of a magnetic field to the heterostructure. A magnetocaloric effect heterostructure powder comprising a plurality of core particles of a magnetostructural material with a giant magnetocaloric effect having a magnetic transition temperature equal to or greater than 150 K, wherein each of the core particles is encapsulated within a coating of a constricting material is also disclosed. A method for enhancing the magnetocaloric effect within a giant magnetocaloric material including the step of coating a surface of the magnetocaloric material with a constricting material is disclosed.
A magnetocaloric effect heterostructure comprising:
A magnetocaloric effect heterostructure powder comprising a plurality of core particles of a magnetostructural material with a giant magnetocaloric effect having a magnetic transition temperature equal to or greater than 150 K, each of said core particles being encapsulated within a coating of constricting material.
A method for enhancing the magnetocaloric effect within a giant magnetocaloric material comprising the step of coating a surface of said giant magnetocaloric material having a magnetic transition temperature equal to or greater than 150 K with a constricting material.
A method of enhancing the magnetocaloric effect within a giant magnetocaloric material comprising the step of restricting volume changes of said giant magnetocaloric material during application of a magnetic field thereto.
A magnetocaloric effect heterostructure comprising:
A magnetocaloric effect heterostructure powder comprising a plurality of core particles of a magneto structural material comprising a compound of the Gd5(Si1-xGex)4 family having a magnetic transition temperature equal to or greater than 150 K, each of said core particles being encapsulated within a coating of constricting material.
A method for enhancing the magnetocaloric effect within a giant magnetocaloric material comprising the step of coating a surface of said giant magnetocaloric material comprising a compound of the Gd5(Si1-xGex)4 family having a magnetic transition temperature equal to or greater than 150 K with a constricting material.
A method of enhancing the magnetocaloric effect within a giant magnetocaloric material comprising the steps of:
Dependencies are inferred from the claim text.