NIMTE OpenIR  > 2018专题
The influence of Ce on microstructure, phase formation and magnetocaloric properties in off-stoichiometric La2-xCex Fe11Si2 alloys
Yang, Jian; Shao, Yanyan; Zhang, Mingxiao; Liu, Yanfeng; Yan, Aru; Liu, Jian
2018
发表期刊INTERMETALLICS
卷号103页码:97-100
摘要Microstructure and magnetocaloric properties have been investigated in a series of off-stoichiometric La2-xCexFe11Si2 (x = 0.2-1.2) magnetic refrigeration alloys. A complex multi-phase structure containing (La,Ce)(1)(Fe,Si)(13), La5Si3, (La,Ce)(2)(Fe,Si)(17), La1Fe1Si1\ and alpha-Fe phases was observed for Ce-doping alloys. Entropy change can be enhanced by the substitution of Ce for La, but higher Ce content (x > 0.8) leads to the decrease of magnetocaloric effect owing to the formation of (La,Ce)(2)(Fe,Si)(17) precipitates. The optimized composition of La1.2Ce0.8Fe11Si2 alloy exhibits a maximum entropy change of 21.8 J/kgK in 2 T, and a large volume change of 1.6% on the strong magnetoelastic coupled transition.
关键词La-fe-si Transition
学科领域Chemistry ; Materials Science ; Physics
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/16978
专题2018专题
推荐引用方式
GB/T 7714
Yang, Jian,Shao, Yanyan,Zhang, Mingxiao,et al. The influence of Ce on microstructure, phase formation and magnetocaloric properties in off-stoichiometric La2-xCex Fe11Si2 alloys[J]. INTERMETALLICS,2018,103:97-100.
APA Yang, Jian,Shao, Yanyan,Zhang, Mingxiao,Liu, Yanfeng,Yan, Aru,&Liu, Jian.(2018).The influence of Ce on microstructure, phase formation and magnetocaloric properties in off-stoichiometric La2-xCex Fe11Si2 alloys.INTERMETALLICS,103,97-100.
MLA Yang, Jian,et al."The influence of Ce on microstructure, phase formation and magnetocaloric properties in off-stoichiometric La2-xCex Fe11Si2 alloys".INTERMETALLICS 103(2018):97-100.
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