Adiabatic temperature change in metamagnetic Ni(Co)-Mn-Al heusler alloys

Vladimir Khovaylo, Maria Lyange, Konstantin Skokov, Oliver Gutfleisch, Ratnamala Chatterjee, Xiao Xu, Ryosuke Kainuma

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

8 Citations (Scopus)

Abstract

Two representatives of Ni(Co)-Mn-Al metamagnetic shape memory alloy system, Ni45Co5Mn31Al19 and Ni35Co15Mn35Al15, have been studied with respect to their magnetocaloric properties. Experimental study of the magnetocaloric effect by a direct measurement of the adiabatic temperature change ΔTad revealed that in both the samples ΔTad depends on the measurement protocol as well as on the magnetic prehistory of the samples. For the applied magnetic field μ0H = 1.93 T, the largest adiabatic temperature change, |ΔTad| ≈ 0.7 K, has been observed in the Ni35Co15Mn35Al15 sample at T = 464 K.

Original languageEnglish
Title of host publicationEuropean Symposium on Martensitic Transformations, ESOMAT 2012
EditorsSergey Prokoshkin, Natalia Resnina
PublisherTrans Tech Publications Ltd
Pages446-450
Number of pages5
ISBN (Print)9783037856109
DOIs
Publication statusPublished - 2013
Event9th European Symposium on Martensitic Transformations, ESOMAT 2012 - Saint-Petersburg, Russian Federation
Duration: 2012 Sep 92012 Sep 16

Publication series

NameMaterials Science Forum
Volume738-739
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other9th European Symposium on Martensitic Transformations, ESOMAT 2012
CountryRussian Federation
CitySaint-Petersburg
Period12/9/912/9/16

Keywords

  • First order magnetic phase transitions
  • Heusler alloys
  • Magnetocaloric effect
  • Martensitic transformations

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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