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Materials 2018, 11(6), 943; https://doi.org/10.3390/ma11060943

Study of the Microstructure, Mechanical, and Magnetic Properties of LaFe11.6Si1.4Hy/Bi Magnetocaloric Composites

1
Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China
2
Institute of Materials Physics and Chemistry, School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
3
School of Science, Shenyang Ligong University, Shenyang 110159, China
*
Author to whom correspondence should be addressed.
Received: 10 May 2018 / Revised: 29 May 2018 / Accepted: 1 June 2018 / Published: 4 June 2018
(This article belongs to the Section Advanced Composites)
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Abstract

We have successfully synthesized LaFe11.6Si1.4Hy/Bi composites by cold pressing together with vacuum annealing technology, and systematically investigated the microstructure, magnetism, mechanical performance, and magnetocaloric properties. LaFe11.6Si1.4Hy particles are well surrounded by metallic Bi, without the formation of new phase. The maximum values of the volumetric magnetic entropy change -ΔSM are as high as 51, 49, and 35 mJ/cm3K around 263 K, for the composites with 5, 10 and 15 wt % Bi contents, respectively. The maximum value of the compressive strength for LaFe11.6Si1.4Hy/Bi composites increased continuously from 155 to 358 MPa with increasing Bi content, from 0 to 15 wt %. View Full-Text
Keywords: mechanical properties; magnetocaloric effect; LaFe11.6Si1.4Hy/Bi composites; magnetic properties mechanical properties; magnetocaloric effect; LaFe11.6Si1.4Hy/Bi composites; magnetic properties
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Liu, Z.; Wu, Q.; Sun, N.; Ding, Z.; Li, L. Study of the Microstructure, Mechanical, and Magnetic Properties of LaFe11.6Si1.4Hy/Bi Magnetocaloric Composites. Materials 2018, 11, 943.

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