小型冷凍機に用いられる磁性蓄冷材

概要

論文の詳細を見る
Magnetic regenerator materials such as Er_3Ni and HoCu_2 are reported. They have high specific heats owing to their magnetic transitions and Schottky anomalies below 10K. When these materials were used in a small refrigerator, refrigeration at 4K was achieved. A process for producing spherical particles of the materials by centrifugal atomization was developed. The reliability of the spherical particles was confirmed by evaluation of their mechanical properties and long-running testing in a refrigerator.
社団法人日本磁気学会の論文
1998-10-01