DEVELOPMENT OF POWERFUL MAGNETIC REGENERATOR MATERIALS AND VERIFICATION OF THEIR EFFECTIVENESS

Authors
HASHIMOTO T NITTA H TSUKAGOSHI T YABUKI M KURIYAMA T NAKAGOME H
Citation
T. Hashimoto et al., DEVELOPMENT OF POWERFUL MAGNETIC REGENERATOR MATERIALS AND VERIFICATION OF THEIR EFFECTIVENESS, Cryogenics, 34, 1994, pp. 223-226
Citations number
9
Categorie Soggetti
Physics, Applied",Thermodynamics
Journal title
Cryogenics → ACNP
ISSN journal
00112275
Volume
34
Year of publication
1994
Supplement
ICEC
Pages
223 - 226
Database
ISI
SICI code
0011-2275(1994)34:<223:DOPMRM>2.0.ZU;2-Q
Abstract
We have succeeded in obtaining a refrigeration power of more than 1.1 watts. at 4.2 K using a GM(Gifford-McMahon) refrigerator. The most imp ortant improvement made in our machine was application of a multi-laye red type magnetic regenerator which was composed of several kinds of h eavy rare earth magnetic materials with low critical temperature in th e range from 15 K to 4 K. We first describe the concept of this regene rator and then show some experimental results which verify its superio rity.