Refrigeration effect of La(FeCoSi)_(13)B_(0.25) compounds and gadolinium metal in reciprocating magnetic refrigerator

作     者：程娟 刘国栋 黄焦宏 刘翠兰 金培育 闫宏伟 CHENG Juan;LIU Guodong;HUANG Jiaohong;LIU Cuilan;JIN Peiyu;YAN Hongwei

作者机构：National Engineering Research Centre of Rare Earth Metallurgy and Functional MaterialsBaotou Research Institute of Rare Earths School of Materials Science and EngineeringHebei University of Technology 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2013年第31卷第12期

页      面：1163-1167页

核心收录：

学科分类：080705[工学-制冷及低温工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：supported by National High Technology Research and Development Program of China(2011AA03A404) International Cooperation Program(2011DFA53230) National Natural Science Foundation of China(51261001) Science Foundation of Inner Mongolia(2011MS0801) 

主　　题：magnetic refrigeration magnetic temperature span magnetic entropy change adiabatic temperature change rare earths 

摘      要：The LaFe11.9–x Cox Si1.1 B0.25 with x=0.9 and x=0.82 compounds were synthesized from commercial purity raw *** magnetic property of LaFe11.9–x Cox Si1.1 B0.25 and Gd particles were tested on the reciprocating refrigerator at the same condition in order to compare the cooling capacity of the two *** results showed that the cooling velocity of Gd was obviously higher than that of LaFe11.9–x Cox Si1.1 *** maximum temperature span was 12.7 oC for LaFe11.0 Co0.9 Si1.1 B0.25,14.9 oC for Gd metal whose mass is the same as that of LaFe11.0 Co0.9 Si1.1 B0.25,8.1 oC for Gd metal whose volume is the same as that of LaFe11.0 Co0.9 Si1.1 *** connection of LaFe11.0 Co0.9 Si1.1 B0.25 and LaFe11.08 Co0.82 Si1.1 B0.25 had the maximum cooling temperature span of 15.3 oC.