Microstructure, mechanical and magnetocaloric properties of bulk La0.9Ce0.1Fe11.7-xMnxSi1.3 hydrides prepared by high-hydrogen-pressure sintering

doi:10.1016/j.jmmm.2019.165889

IMR OpenIR

	Microstructure, mechanical and magnetocaloric properties of bulk La0.9Ce0.1Fe11.7-xMnxSi1.3 hydrides prepared by high-hydrogen-pressure sintering
	Sun, Naikun 1; Zhang, Yang 1; Zhao, Xinguo 2; Guo, Jie 1; Cheng, Juan 3; Huang, Jiaohong 3; Zhang, Zhidong 2
通讯作者	Sun, Naikun(naikunsun@163.com) ; Zhao, Xinguo(xgzhao@imr.ac.cn)
	2020-02-01
发表期刊	JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN	0304-8853
卷号	495 页码:7
摘要	Fully hydrogenated La0.9Ce0.1Fe11.7-xMnxSi1-3 bulk hydrides with Curie temperature T-C around room temperature were prepared by high-hydrogen-pressure sintering. High-resolution X-ray microtomography has been employed to analyze the morphology, size and distribution of the micropores in the sintered bulk sample. The analysis result shows that most of the micropores have the size of several micrometers with the porosity of 0.22%. A thin plate of La0.9Ce0.1Fe11.35Mn0.35Si1.3H2.0 exhibits a magnetic-entropy change Delta S-m of 7.5 J/kg K at 290 K and a hysteresis loss of 0.5 J/kg for a magnetic-field change from 0 to 2 T. As the sintering pressure increases from 40 to 50 MPa, more alpha-Fe (similar to 20 wt%) precipitates from the 1:13 phase, which causes a reduction of Delta S-m to 6.2 J/kg K for a field change from 0 to 2 T at 297 K and a remarkable enhancement of the compressive strength from 46 to 421 MPa.
关键词	High-pressure sintering Micropores Mechanical properties Magnetocaloric effect
资助者	National Natural Science Foundation of China ; National Key R&D Plan of China (Materials genome project)
DOI	10.1016/j.jmmm.2019.165889
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51571194] ; National Natural Science Foundation of China[51771197] ; National Key R&D Plan of China (Materials genome project)[2017YFB0702703]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Condensed Matter
WOS记录号	WOS:000492698500031
出版者	ELSEVIER
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/136850
专题	中国科学院金属研究所
通讯作者	Sun, Naikun; Zhao, Xinguo
作者单位	1.Shenyang Ligong Univ, Sch Sci, Shenyang 110159, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 3.Baotou Res Inst Rare Earths, Baotou 014030, Peoples R China
推荐引用方式 GB/T 7714	Sun, Naikun,Zhang, Yang,Zhao, Xinguo,et al. Microstructure, mechanical and magnetocaloric properties of bulk La0.9Ce0.1Fe11.7-xMnxSi1.3 hydrides prepared by high-hydrogen-pressure sintering[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2020,495:7.
APA	Sun, Naikun.,Zhang, Yang.,Zhao, Xinguo.,Guo, Jie.,Cheng, Juan.,...&Zhang, Zhidong.(2020).Microstructure, mechanical and magnetocaloric properties of bulk La0.9Ce0.1Fe11.7-xMnxSi1.3 hydrides prepared by high-hydrogen-pressure sintering.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,495,7.
MLA	Sun, Naikun,et al."Microstructure, mechanical and magnetocaloric properties of bulk La0.9Ce0.1Fe11.7-xMnxSi1.3 hydrides prepared by high-hydrogen-pressure sintering".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 495(2020):7.