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

doi:10.1016/j.jmmm.2019.03.082

CORC > 兰州理工大学 > 兰州理工大学

	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	Transition-metal boride Magnetic phase transition Magnetocaloric effect
ISSN号	0304-8853
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 (T-c) increases with more Si and Ga substitutions. For a field change of 5 T and 7 T, the maximum of entropy change (Delta S-max) 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 Delta S-max have been increased to 7.5 J Kg(-1) K-1 and 6 J Kg(-1) K-1 respectively. The tunable ambient T-c and considerable Delta S-max suggest that AlFe2B2-based compounds are potential low-cost ambient magnetic refrigeration candidates.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000468443500023
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31640]
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
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.