US2016025386A1PendingUtilityA1

High Entropy NiMn-based Magnetic Refrigerant Materials

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Assignee: UT BATTELLE LLCPriority: Jul 28, 2014Filed: Jul 23, 2015Published: Jan 28, 2016
Est. expiryJul 28, 2034(~8 yrs left)· nominal 20-yr term from priority
Inventors:Rozailya I. BarabashOleg M. BarabashWallace D. PorterEdward Allan VineyardThomas R. Watkins
C22C 19/03F25B 2321/002F25B 21/00C22C 19/005C22C 30/00Y02B30/00
37
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Claims

Abstract

A magnetocaloric alloy composition consists essentially of 20-40 weight % Mn, 6-26 weight % In, 1-5 weight % Si, and 0.3-12 wt. % of at least one other element selected from the group consisting of: Ga, Ge, Ag, Gd, Co, Pd, Sm, V, and Sn, balance Ni.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A magnetocaloric alloy composition consisting essentially of 20-40 weight % Mn, 6-26 weight % In, 1-5 weight % Si, and 0.3-12 wt. % of at least one other element selected from the group consisting of: Ga, Ge, Ag, Gd, Co, Pd, Sm, V, and Sn, balance Ni. 
     
     
         2 . A magnetocaloric alloy composition in accordance with  claim 1  wherein said at least one other element comprises 6 to 9 weight % Ga. 
     
     
         3 . A magnetocaloric alloy composition in accordance with  claim 1  wherein said at least one other element comprises 0.2 to 1 weight % Ge. 
     
     
         4 . A magnetocaloric alloy composition in accordance with  claim 1  wherein said at least one other element comprises 7 to 9 weight % Ag. 
     
     
         5 . A magnetocaloric alloy composition in accordance with  claim 1  wherein said at least one other element comprises 3 to 8 weight % Gd. 
     
     
         6 . A magnetocaloric alloy composition in accordance with  claim 1  wherein said at least one other element comprises 4 to 5 weight % Co. 
     
     
         7 . A magnetocaloric alloy composition in accordance with  claim 1  wherein said at least one other element comprises 7 to 9 weight % Pd. 
     
     
         8 . A magnetocaloric alloy composition in accordance with  claim 1  wherein said at least one other element comprises 6 to 9 weight % Sm. 
     
     
         9 . A magnetocaloric alloy composition in accordance with  claim 1  wherein said at least one other element comprises 2 to 3 weight % V. 
     
     
         10 . A magnetocaloric alloy composition in accordance with  claim 1  wherein said at least one other element comprises 10 to 12 weight % Sn. 
     
     
         11 . A magnetocaloric device comprising at least one magnetocaloric material, at least one magnet, apparatus for moving said magnetocaloric material into and out of proximity with said magnet, and apparatus for transferring heat to and from said magnetocaloric material, said magnetocaloric material consisting essentially of 20-40 weight % Mn, 6-26 weight % In, 1-5 weight % Si, and 0.3-12 wt. % of at least one other element selected from the group consisting of: Ga, Ge, Ag, Gd, Co, Pd, Sm, V, and Sn, balance Ni. 
     
     
         12 . A magnetocaloric device in accordance with  claim 11  wherein said at least one other element comprises 6 to 9 weight % Ga. 
     
     
         13 . A magnetocaloric device in accordance with  claim 11  wherein said at least one other element comprises 0.2 to 1 weight % Ge. 
     
     
         14 . A magnetocaloric device in accordance with  claim 11  wherein said at least one other element comprises 7 to 9 weight % Ag. 
     
     
         15 . A magnetocaloric device in accordance with  claim 11  wherein said at least one other element comprises 3 to 8 weight % Gd. 
     
     
         16 . A magnetocaloric device in accordance with  claim 11  wherein said at least one other element comprises 4 to 5 weight % Co. 
     
     
         17 . A magnetocaloric device in accordance with  claim 11  wherein said at least one other element comprises 7 to 9 weight % Pd. 
     
     
         18 . A magnetocaloric device in accordance with  claim 11  wherein said at least one other element comprises 6 to 9 weight % Sm. 
     
     
         19 . A magnetocaloric device in accordance with  claim 11  wherein said at least one other element comprises 2 to 3 weight % V. 
     
     
         20 . A magnetocaloric device in accordance with  claim 11  wherein said at least one other element comprises 10 to 12 weight % Sn.

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