Invention Grant
- Patent Title: Magnetocaloric alloys useful for magnetic refrigeration applications
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Application No.: US16476047Application Date: 2018-01-08
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Publication No.: US11225703B2Publication Date: 2022-01-18
- Inventor: Robin Ihnfeldt , Sungho Jin , Renkun Chen , Xia Xu , Elizabeth Caldwell , Eunjeong Kim
- Applicant: General Engineering & Research, L.L.C. , The Regents of the University of California
- Applicant Address: US CA San Diego; US CA Oakland
- Assignee: General Engineering & Research, L.L.C.,The Regents of the University of California
- Current Assignee: General Engineering & Research, L.L.C.,The Regents of the University of California
- Current Assignee Address: US CA San Diego; US CA Oakland
- Agency: Knobbe, Martens, Olson & Bear, LLP
- International Application: PCT/US2018/012836 WO 20180108
- International Announcement: WO2018/129476 WO 20180712
- Main IPC: F25B21/00
- IPC: F25B21/00 ; C22C28/00 ; B22D7/00 ; C22F1/16 ; H01F1/01

Abstract:
This invention relates to magnetocaloric materials comprising ternary alloys useful for magnetic refrigeration applications. The disclosed ternary alloys are Cerium, Neodymium, and/or Gadolinium based compositions that are fairly inexpensive, and in some cases exhibit only 2nd order magnetic phase transitions near their curie temperature, thus there are no thermal and structural hysteresis losses. This makes these compositions attractive candidates for use in magnetic refrigeration applications. The performance of the disclosed materials is similar or better to many of the known expensive rare-earth based magnetocaloric materials.
Public/Granted literature
- US20190352747A1 MAGNETOCALORIC ALLOYS USEFUL FOR MAGNETIC REFRIGERATION APPLICATIONS Public/Granted day:2019-11-21
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