Magnetic phase transition and room-temperature magnetocaloric effects in (Al,M)Fe2B2 (M=Si, Ga) compounds

doi:10.1016/j.jmmm.2019.03.082

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	Magnetic phase transition and room-temperature magnetocaloric effects in (Al,M)Fe2B2 (M=Si, Ga) compounds
	Zhang, Zhihao 1; Yao, Guiquan 1; Zhang, Lu 1; Jia, Peng 1; Fu, Xiaoxiao 2; Cui, Weibin 1,3; Wang, Qiang 1
刊名	Journal of Magnetism and Magnetic Materials
	2019-08-15
卷号	484 页码:154-158
关键词	Costs Gallium compounds Magnetic refrigeration Refrigeration Silicon compounds Transition metals Entropy changes Field change Ga substitutions Magnetic phase transitions Second orders Single phase Substitution composition Substitution effect
ISSN号	03048853
DOI	10.1016/j.jmmm.2019.03.082
英文摘要	As the emerging ambient low-cost magnetic refrigeration system, the substitution effects on the magnetic properties and magnetocaloric effects in Al1−xSixFe2B2 (x = 0, 0.1, 0.2, 0.3) and Al1−yGayFe2B2 (y = 0.1 and 0.2) have been studied. The single phase is formed in a wide substitution composition region. All phase transitions in these compounds are of second-order and their Curie temperature (Tc) increases with more Si and Ga substitutions. For a field change of 5 T and 7 T, the maximum of entropy change (ΔSmax) of 4.9 J Kg−1 K−1 and 6.3 J Kg−1 K−1 are obtained and not dependent on the Si substitution amount in Al1−xSixFe2B2. As comparison, by Ga substitution, for the field change of 7 T and 5 T, the ΔSmax have been increased to 7.5 J Kg−1 K−1 and 6 J Kg−1 K−1 respectively. The tunable ambient Tc and considerable ΔSmax suggest that AlFe2B2-based compounds are potential low-cost ambient magnetic refrigeration candidates. © 2019
资助项目	Natural Science Foundation of Liaoning Provence[20180510003]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	Elsevier B.V., Netherlands
WOS记录号	WOS:000468443500023
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114691]
专题	兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Fu, Xiaoxiao; Cui, Weibin
作者单位	1.Northeastern Univ, Minist Educ, Key Lab Electromagnet Proc Mat, Shenyang 110819, Liaoning, Peoples R China 2.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhihao,Yao, Guiquan,Zhang, Lu,et al. Magnetic phase transition and room-temperature magnetocaloric effects in (Al,M)Fe2B2 (M=Si, Ga) compounds[J]. Journal of Magnetism and Magnetic Materials,2019,484:154-158.
APA	Zhang, Zhihao.,Yao, Guiquan.,Zhang, Lu.,Jia, Peng.,Fu, Xiaoxiao.,...&Wang, Qiang.(2019).Magnetic phase transition and room-temperature magnetocaloric effects in (Al,M)Fe2B2 (M=Si, Ga) compounds.Journal of Magnetism and Magnetic Materials,484,154-158.
MLA	Zhang, Zhihao,et al."Magnetic phase transition and room-temperature magnetocaloric effects in (Al,M)Fe2B2 (M=Si, Ga) compounds".Journal of Magnetism and Magnetic Materials 484(2019):154-158.