The preparation, microstructures and magnetostrictive properties of Samefenol-D

Jiwei Xie, David Fort, John Abell

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A high-pressure arc furnace has been used to prepare button- and rod-shaped samples of Sm0.86Dy0.14Fey alloys. Sm losses as a result of volatilisation during melting were found to be lower than those encountered when using conventional arc melting techniques, while higher arc currents could be employed leading to more effective melting. The effects of annealing on the microstructures and the magnetomechanical coupling factor, k(33), have also been investigated. X-Ray diffraction and scanning electron microscopy analysis indicated that annealing samples at 850 degreesC under vacuum for periods up to 10 h gives a pseudo-single phase microstructure. A double partial zoning technique, followed by annealing, was devised to prepare rod samples with high magnetomechanical coupling factors. (C) 2003 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)241-247
Number of pages7
JournalJournal of Alloys and Compounds
Volume366
DOIs
Publication statusPublished - 10 Mar 2004

Keywords

  • transition metal compounds
  • rare earth compounds
  • magnetostriction
  • magnetic measurements

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