The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 2023
Filed:
Feb. 20, 2019
General Engineering & Research, L.l.c., San Diego, CA (US);
The Regents of the University of California, Oakland, CA (US);
Robin Ihnfeldt, San Diego, CA (US);
Eunjeong Kim, San Diego, CA (US);
Sungho Jin, San Diego, CA (US);
Renkun Chen, San Diego, CA (US);
Xia Xu, Oro Valley, AZ (US);
General Engineering & Research, L.L.C., San Diego, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
This invention relates to magnetocaloric materials comprising alloys useful for magnetic refrigeration applications. In some embodiments, the disclosed alloys may be Cerium, Neodymium, and/or Gadolinium based compositions that are fairly inexpensive, and in some cases exhibit only 2order magnetic phase transitions near their curie temperature, thus there are limited thermal and structural hysteresis losses. This makes these compositions attractive candidates for use in magnetic refrigeration applications. Surprisingly, the performance of the disclosed materials is similar or better to many of the known expensive rare-earth based magnetocaloric materials.