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|Title:||Table-like magnetocaloric effect and large refrigerant capacity in Gd65Mn25Si10-Gd composite materials for near room temperature refrigeration||Authors:||Zhong, Xi Chun
Shen, X. Y.
Mo, H. Y.
Jiao, D. L.
Liu, Z. W.
Qiu, W. Q.
Ramanujan, Raju Vijayaraghavan
|Keywords:||Engineering::Materials||Issue Date:||2017||Source:||Zhong, X. C., Shen, X. Y., Mo, H. Y., Jiao, D. L., Liu, Z. W., Qiu, W. Q., . . . Ramanujan, R. V. (2018). Table-like magnetocaloric effect and large refrigerant capacity in Gd65Mn25Si10-Gd composite materials for near room temperature refrigeration. Materials Today Communications, 14, 22-26. doi:10.1016/j.mtcomm.2017.12.005||Journal:||Materials Today Communications||Abstract:||Amorphous Gd65Mn25Si10 as well as crystalline Gd have technologically significant Curie temperature and large magnetic entropy change. Two types of composite materials Gd65Mn25Si10-Gd were fabricated: laminating Gd sheets and amorphous Gd65Mn25Si10 ribbons (multilayer composite) and hot pressing a mixture of amorphous Gd65Mn25Si10 thin ribbons, Gd particles and a small amount of Sn powders (bulk composite). A table-like magnetocaloric effect (MCE) in a wide, commercially useful, temperature span of 73 K (220 K-293 K) were observed in these composites. The values of full-width at half maximum of (−ΔSM) − T plots (ΔTFWHM) and enhanced refrigerant capacity (RC) for the multilayer and bulk composites are 212 K, 724 J/kg, and 248 K, 617 J/kg, respectively, for a field of 5 T. Large ΔTFWHM and RC values and the table-like (−ΔSM)max feature suggest that both multilayer and bulk Gd65Mn25Si10-Gd composites can meet the requirements of different magnetic refrigeration based on Ericsson-cycle.||URI:||https://hdl.handle.net/10356/139341||ISSN:||2352-4928||DOI:||10.1016/j.mtcomm.2017.12.005||Schools:||School of Materials Science & Engineering||Rights:||© 2017 Elsevier Ltd. All rights reserved.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||MSE Journal Articles|
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