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1. (WO2018124256) RARE EARTH REGENERATOR MATERIAL, AND REGENERATOR AND REFRIGERATOR EACH PROVIDED WITH SAME

Pub. No.:    WO/2018/124256    International Application No.:    PCT/JP2017/047150
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri Dec 29 00:59:59 CET 2017
IPC: C09K 5/14
F25B 9/00
Applicants: SANTOKU CORPORATION
株式会社三徳
Inventors: KURIIWA, Takahiro
栗岩 貴寛
MATSUMOTO, Yasutomo
松本 恭知
NAMAKI, Eiji
生木 英治
Title: RARE EARTH REGENERATOR MATERIAL, AND REGENERATOR AND REFRIGERATOR EACH PROVIDED WITH SAME
Abstract:
The present invention provides: a regenerator material having a high specific heat in a temperature range equal to or higher than 10 K (particularly a temperature range from 10 to 20 K); and a regenerator and a refrigerator each of which is provided with the regenerator material. More specifically, the present invention provides: a rare earth regenerator material characterized by being represented by general formula (1): Er1-xRxNi1+α (1) [wherein x represents a value satisfying the formula: 0 < x < 1; α represents a value satisfying the formula: -1 < α < 1; and R represents at least one element selected from Y and lanthanoid elements (excluding Er); and a regenerator and a refrigerator each of which is provided with the regenerator material.