稀土学报（英文版）
稀土學報（英文版）
희토학보（영문판）
JOURNAL OF RARE EARTHS
2013年
12期
1163-1167
,共5页
程娟%刘国栋%黄焦宏%刘翠兰%金培育%闫宏伟
程娟%劉國棟%黃焦宏%劉翠蘭%金培育%閆宏偉
정연%류국동%황초굉%류취란%금배육%염굉위
magnetic refrigeration%magnetic temperature span%magnetic entropy change%adiabatic temperature change%rare earths
The LaFe11.9-xCoxSi1.1B0.25 with x=0.9 and x=0.82 compounds were synthesized from commercial purity raw materials. The magnetic property of LaFe11.9-xCoxSi1.1B0.25 and Gd particles were tested on the reciprocating refrigerator at the same condition in or-der to compare the cooling capacity of the two materials. The results showed that the cooling velocity of Gd was obviously higher than that of LaFe11.9-xCoxSi1.1B0.25. The maximum temperature span was 12.7 oC for LaFe11.0Co0.9Si1.1B0.25, 14.9 oC for Gd metal whose mass is the same as that of LaFe11.0Co0.9Si1.1B0.25, 8.1 oC for Gd metal whose volume is the same as that of LaFe11.0Co0.9Si1.1B0.25. Se-ries connection of LaFe11.0Co0.9Si1.1B0.25 and LaFe11.08Co0.82Si1.1B0.25 had the maximum cooling temperature span of 15.3 oC.
