Magnetocaloric effect and solid hydriding of La(Fe, Si)13 powders through decomposing YH2 hydride or the composite of YH2-C
Source abstract
Abstract
In this work, we realized the formation of La(Fe, Si)13Hy by making use of the released hydrogen atoms from the solid hydrides. Under the annealing process, NaZn13-type magnetocaloric phase absorbed the released hydrogen atoms from the solid hydride YH2, which can be further promoted through pre-milling the mixture of YH2 with carbon. The highest increase of Curie temperature is about 123 K when the compact mixture of LaFe11.65Si1.35 with 15 wt.% YH2-C was annealed at 813 K. The magnetic hysteresis loss was also largely suppressed with a slight decrease of magnetic entropy change. This solid method would exhibit the merits of process and plate shaping under a certain pressure.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Hydrogen Storage and Materials · Magnetic Properties of Alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Xi’an University of Technology 1 , Xi’an 710048, P. R. China
Division of Functional Materials, Central Iron and Steel Research Institute 2 , Beijing 100081, P. R. China
Funding
International Scientific and Technology cooperation and exchange program, Shaanxi · Shaanxi Natural Science Basic Research Plan, China · National Natural Science Foundation of China
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