Structural, magnetic, and magnetostrictive properties of Tb1-xNdx(Fe0.9B0.1)2alloys

W. J. Ren, Siu Wing Or, H. L.W. Chan, X. G. Zhao, J. J. Liu, Z. D. Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

15 Citations (Scopus)

Abstract

The crystal structure, magnetization, and spontaneous magnetostriction of Tb1-xNdx(Fe0.9B0.1)2alloys have been investigated. X-ray diffraction (XRD) analysis shows that the alloys consist predominantly of the cubic Laves phase with a MgCu2-type structure for x ≤ 0.55. Increasing in lattice parameter and decreasing in Curie temperature with increasing x from 0 to 0.55 reveals an increment in the Nd content in the Laves phase. The (440) XRD line of the Laves phase splits doubly when x ≤ 0.7 because of a large spontaneous magnetostriction along its 〈111〉 easy magnetization direction. The magnetostriction coefficient λ111decreases significantly with increasing x when 0 ≤ x ≤ 0.55. For x ≥ 0.7, it is difficult to achieve saturation magnetization at room temperature due to increased amount of the Nd2Fe14B-type phase with large magnetocrystalline anisotropy.
Original languageEnglish
Pages (from-to)2772-2774
Number of pages3
JournalIEEE Transactions on Magnetics
Volume40
Issue number4 II
DOIs
Publication statusPublished - 1 Jul 2004

Keywords

  • Crystal structure
  • Laves phase
  • Magnetization
  • Magnetostriction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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