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Approaching all-temperature-ranges giant magnetocaloric materials by establishing a broad curie-temperature window.

Number: 1494

Author(s) : LIU E., WANG W., CHEN J., et al.

Summary

In this study, we will present our recent effort to approach the giant magnetocaloric materials in a host system that works over broad temperature ranges. The idea of Curie-temperature window (TW) and the method of isostructural alloying were efficiently applied in our material design. A very broad TW as large as 377 K between 69 and 446 K established in Mn1-yCoyNiGe1-xSix system was shown in present extended abstract. Within the TW, the tunable first-order magnetostructural transitions take place from paramagnetic NiIn-type hexagonal parent phase to ferromagnetic TiNiSi-type orthorhombic martensite, bringing about giant magnetic entropy change near -40 J/kg K over a 400 K range. More important results will be presented in the oral talk.

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Pages: 4 p.

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Details

  • Original title: Approaching all-temperature-ranges giant magnetocaloric materials by establishing a broad curie-temperature window.
  • Record ID : 30013116
  • Languages: English
  • Source: 6th International Conference on Magnetic Refrigeration at Room Temperature (Thermag VI). Proceedings: Victoria, Canada, September 7-10, 2014.
  • Publication date: 2014/09/07

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