Magnetic refrigerant and process for producing the same
US5362339A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1992 |
| Grant date | Nov 8, 1994 |
| Priority date | — |
| Expiry date | Mar 13, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/15325
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cast magnetic refrigerant having a composition represented by EQU Ln.sub.a A.sub.b M.sub.c wherein Ln is at least one element selected from the group consisting of Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb; A is any one of elements of Al and Ga; M is at least one element selected from the group consisting of Fe, Co, Ni, Cu and Ag; each of a, b and c is atomic %, with the proviso that a+b+c=100 atomic %, 20 atomic % .ltoreq.a.ltoreq.80 atomic %, 5 atomic % .ltoreq.b .ltoreq.50 atomic %, 5 atomic % .ltoreq.c.ltoreq.60 atomic %, and having an amorphous structure with a difference .DELTA.T of 10K or more between a glass transition temperature Tg and a crystallization temperature Tx.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.