Influence of Mn on the magnetocaloric effect of nanoperm-type alloys

R. Caballero-Flores, V. Franco, A. Conde, L. Kiss

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the influence of the Mn content on the magnetocaloric response of ribbon-shaped amorphous samples of Fe 80-x Mn x B 20 x=10, 15, 18, 20, and 24, has been studied. For this purpose, the temperature and field dependence of the magnetic entropy change(δS M ) have been obtained from magnetization curves. The partial substitution of Fe by Mn leads to a monotonous change in the Curie temperature (T C ) of the alloys from 438 K for x=10 to 162 K for x=24, in agreement with the coherent-potential approximation. These Curie temperatures could make them good candidates to be used for magnetic refrigeration at room temperature. For an applied field of 1.5 T, the maximum entropy change (δS pk M ) passes from 1 J K -1 kg -1 (x=10) to 0.5 J K -1 kg -1 (x=24) , and the refrigerant capacity varies between 117 J kg -1 (x=10) and 68 J kg -1 (x=24) . A linear relationship between δS M pk and the average magnetic moment per transition metal atom (μ)F e,Mn has been presented.

Original languageEnglish
Title of host publicationProceedings - Scalable Parallel Libraries Conference, SPLC 1994
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)0818668954, 9780818668951
DOIs
Publication statusPublished - Jan 1 1994
Event1994 Scalable Parallel Libraries Conference, SPLC 1994 - Mississippi State, United States
Duration: Oct 12 1994Oct 14 1994

Publication series

NameProceedings - Scalable Parallel Libraries Conference, SPLC 1994

Conference

Conference1994 Scalable Parallel Libraries Conference, SPLC 1994
CountryUnited States
CityMississippi State
Period10/12/9410/14/94

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Software

Cite this

Caballero-Flores, R., Franco, V., Conde, A., & Kiss, L. (1994). Influence of Mn on the magnetocaloric effect of nanoperm-type alloys. In Proceedings - Scalable Parallel Libraries Conference, SPLC 1994 [0377011] (Proceedings - Scalable Parallel Libraries Conference, SPLC 1994). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1063/1.3489990