| Microstructure, mechanical and magnetocaloric properties of bulk La0.9Ce0.1Fe11.7-xMnxSi1.3 hydrides prepared by high-hydrogen-pressure sintering | |
| Sun, Naikun1; Zhang, Yang1; Zhao, Xinguo2; Guo, Jie1; Cheng, Juan3; Huang, Jiaohong3; Zhang, Zhidong2 | |
| Corresponding Author | Sun, Naikun(naikunsun@163.com) ; Zhao, Xinguo(xgzhao@imr.ac.cn) |
| 2020-02-01 | |
| Source Publication | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
 |
| ISSN | 0304-8853 |
| Volume | 495Pages:7 |
| Abstract | 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. |
| Keyword | High-pressure sintering Micropores Mechanical properties Magnetocaloric effect |
| Funding Organization | National Natural Science Foundation of China ; National Key R&D Plan of China (Materials genome project) |
| DOI | 10.1016/j.jmmm.2019.165889 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Multidisciplinary ; Physics, Condensed Matter |
| WOS ID | WOS:000492698500031 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/136850 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sun, Naikun; Zhao, Xinguo |
| Affiliation | 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 |
| Recommended Citation 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. |
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