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Document IIF

Enquête sur la dureté microscopique et les changements d'entropie magnétique d'alliages Gd(1-x)Ni(x).

Investigation on micro-hardness and magnetic entropy changes of Gd(1-x)Ni(x) alloys.

Auteurs : HUANG W. D., ZHONG X. C., ZHOU X., et al.

Résumé

The magnetic entropy changes and micro-hardnesses of Gd(1-x)Ni(x) (x= 0-0.07) alloys prepared by arc melting were investigated. The structural analysis confirmed that a small amount of Ni can dissolve in Gd metal and form a Gd(1-x)Ni(x) solid solution. It was also found that the micro-hardness of pure Gd metal can be much improved by Ni doping. There is no significant difference in Curie temperatures for Gd(1-x)Ni(x) alloys compared with pure Gd. The magnetic entropy changes of Gd(1-x)Ni(x) alloys were not deteriorated by Ni doping and remained at a high level. The results, thus, indicate that Gd(1-x)Ni(x) alloys are more suitable for the application of room temperature magnetic refrigeration.

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Pages : 2009-3

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Détails

  • Titre original : Investigation on micro-hardness and magnetic entropy changes of Gd(1-x)Ni(x) alloys.
  • Identifiant de la fiche : 2009-1601
  • Langues : Anglais
  • Source : 3rd International Conference on Magnetic Refrigeration at Room Temperature
  • Date d'édition : 11/05/2009

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