Structure and magnetostriction of Sm1-xPrxFe2 and Sm0.9Pr0.1(Fe1-yBy)2alloys

B.W. Wang, Y.M. Hao, Simon Busbridge, Z.J. Guo, Y.X. Li

Research output: Contribution to journalArticle

Abstract

The structure, previous termmagnetostrictionnext term and anisotropy of Sm1−xPrxFe2 and Sm0.9Pr0.1(Fe1−yBy)2 alloys have been investigated using X-ray diffraction, standard strain gauge technique and Mössbauer spectrum. It is found that the matrix of homogenized Sm1−xPrxFe2 alloys is the (Sm,Pr)Fe2 phase with MgCu2-type cubic structure and the minor phases are (Sm,Pr)Fe3 phase and rare earth-rich phase when x less-than-or-equals 0.3. When x=0.4, the (Sm,Pr)Fe3 phase is found to be the main phase and the minor phases become (Sm,Pr)Fe2, (Sm,Pr)2Fe17 and rare earth-rich phase. With further increasing Pr content, the amount of minor phases, (Sm,Pr)2Fe17 and rare earth-rich phase increase, but that of (Sm,Pr)Fe2 remains almost unchanged. For Sm0.9Pr0.1(Fe1−yBy)2 alloys, the (Sm,Pr)(Fe,B)2 as a matrix is up to y=0.2, and the small amount of second phase is a rare earth-rich phase when y>0.05. The magnetostriction of Sm1−xPrxFe2 alloys exhibits a peak near x=0.1 and that of Sm0.9Pr0.1(Fe1−yBy)2 alloys decreases with increasing B content. The Mössbauer spectrum analysis shows that the easy axis of magnetization for Sm1−xPrxFe2 alloys lies in the <1 1 1> direction up to x=0.3 and the anisotropy of Sm1−xPrxFe2 alloys decreases with increasing Pr content.
Original languageEnglish
Pages (from-to)270-274
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume246
Issue number1-2
DOIs
Publication statusPublished - Apr 2002

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magnetostriction
rare earth elements
anisotropy
strain gages
matrices
spectrum analysis
magnetization
diffraction
x rays

Keywords

  • Rare iron compounds
  • Structure
  • Laves phase
  • Magnetostriction
  • Mössbauer spectrum

Cite this

Wang, B.W. ; Hao, Y.M. ; Busbridge, Simon ; Guo, Z.J. ; Li, Y.X. / Structure and magnetostriction of Sm1-xPrxFe2 and Sm0.9Pr0.1(Fe1-yBy)2alloys. In: Journal of Magnetism and Magnetic Materials. 2002 ; Vol. 246, No. 1-2. pp. 270-274.
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title = "Structure and magnetostriction of Sm1-xPrxFe2 and Sm0.9Pr0.1(Fe1-yBy)2alloys",
abstract = "The structure, previous termmagnetostrictionnext term and anisotropy of Sm1−xPrxFe2 and Sm0.9Pr0.1(Fe1−yBy)2 alloys have been investigated using X-ray diffraction, standard strain gauge technique and M{\"o}ssbauer spectrum. It is found that the matrix of homogenized Sm1−xPrxFe2 alloys is the (Sm,Pr)Fe2 phase with MgCu2-type cubic structure and the minor phases are (Sm,Pr)Fe3 phase and rare earth-rich phase when x less-than-or-equals 0.3. When x=0.4, the (Sm,Pr)Fe3 phase is found to be the main phase and the minor phases become (Sm,Pr)Fe2, (Sm,Pr)2Fe17 and rare earth-rich phase. With further increasing Pr content, the amount of minor phases, (Sm,Pr)2Fe17 and rare earth-rich phase increase, but that of (Sm,Pr)Fe2 remains almost unchanged. For Sm0.9Pr0.1(Fe1−yBy)2 alloys, the (Sm,Pr)(Fe,B)2 as a matrix is up to y=0.2, and the small amount of second phase is a rare earth-rich phase when y>0.05. The magnetostriction of Sm1−xPrxFe2 alloys exhibits a peak near x=0.1 and that of Sm0.9Pr0.1(Fe1−yBy)2 alloys decreases with increasing B content. The M{\"o}ssbauer spectrum analysis shows that the easy axis of magnetization for Sm1−xPrxFe2 alloys lies in the <1 1 1> direction up to x=0.3 and the anisotropy of Sm1−xPrxFe2 alloys decreases with increasing Pr content.",
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author = "B.W. Wang and Y.M. Hao and Simon Busbridge and Z.J. Guo and Y.X. Li",
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Structure and magnetostriction of Sm1-xPrxFe2 and Sm0.9Pr0.1(Fe1-yBy)2alloys. / Wang, B.W.; Hao, Y.M.; Busbridge, Simon; Guo, Z.J.; Li, Y.X.

In: Journal of Magnetism and Magnetic Materials, Vol. 246, No. 1-2, 04.2002, p. 270-274.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Structure and magnetostriction of Sm1-xPrxFe2 and Sm0.9Pr0.1(Fe1-yBy)2alloys

AU - Wang, B.W.

AU - Hao, Y.M.

AU - Busbridge, Simon

AU - Guo, Z.J.

AU - Li, Y.X.

PY - 2002/4

Y1 - 2002/4

N2 - The structure, previous termmagnetostrictionnext term and anisotropy of Sm1−xPrxFe2 and Sm0.9Pr0.1(Fe1−yBy)2 alloys have been investigated using X-ray diffraction, standard strain gauge technique and Mössbauer spectrum. It is found that the matrix of homogenized Sm1−xPrxFe2 alloys is the (Sm,Pr)Fe2 phase with MgCu2-type cubic structure and the minor phases are (Sm,Pr)Fe3 phase and rare earth-rich phase when x less-than-or-equals 0.3. When x=0.4, the (Sm,Pr)Fe3 phase is found to be the main phase and the minor phases become (Sm,Pr)Fe2, (Sm,Pr)2Fe17 and rare earth-rich phase. With further increasing Pr content, the amount of minor phases, (Sm,Pr)2Fe17 and rare earth-rich phase increase, but that of (Sm,Pr)Fe2 remains almost unchanged. For Sm0.9Pr0.1(Fe1−yBy)2 alloys, the (Sm,Pr)(Fe,B)2 as a matrix is up to y=0.2, and the small amount of second phase is a rare earth-rich phase when y>0.05. The magnetostriction of Sm1−xPrxFe2 alloys exhibits a peak near x=0.1 and that of Sm0.9Pr0.1(Fe1−yBy)2 alloys decreases with increasing B content. The Mössbauer spectrum analysis shows that the easy axis of magnetization for Sm1−xPrxFe2 alloys lies in the <1 1 1> direction up to x=0.3 and the anisotropy of Sm1−xPrxFe2 alloys decreases with increasing Pr content.

AB - The structure, previous termmagnetostrictionnext term and anisotropy of Sm1−xPrxFe2 and Sm0.9Pr0.1(Fe1−yBy)2 alloys have been investigated using X-ray diffraction, standard strain gauge technique and Mössbauer spectrum. It is found that the matrix of homogenized Sm1−xPrxFe2 alloys is the (Sm,Pr)Fe2 phase with MgCu2-type cubic structure and the minor phases are (Sm,Pr)Fe3 phase and rare earth-rich phase when x less-than-or-equals 0.3. When x=0.4, the (Sm,Pr)Fe3 phase is found to be the main phase and the minor phases become (Sm,Pr)Fe2, (Sm,Pr)2Fe17 and rare earth-rich phase. With further increasing Pr content, the amount of minor phases, (Sm,Pr)2Fe17 and rare earth-rich phase increase, but that of (Sm,Pr)Fe2 remains almost unchanged. For Sm0.9Pr0.1(Fe1−yBy)2 alloys, the (Sm,Pr)(Fe,B)2 as a matrix is up to y=0.2, and the small amount of second phase is a rare earth-rich phase when y>0.05. The magnetostriction of Sm1−xPrxFe2 alloys exhibits a peak near x=0.1 and that of Sm0.9Pr0.1(Fe1−yBy)2 alloys decreases with increasing B content. The Mössbauer spectrum analysis shows that the easy axis of magnetization for Sm1−xPrxFe2 alloys lies in the <1 1 1> direction up to x=0.3 and the anisotropy of Sm1−xPrxFe2 alloys decreases with increasing Pr content.

KW - Rare iron compounds

KW - Structure

KW - Laves phase

KW - Magnetostriction

KW - Mössbauer spectrum

U2 - 10.1016/S0304-8853(02)00068-9

DO - 10.1016/S0304-8853(02)00068-9

M3 - Article

VL - 246

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EP - 274

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 1-2

ER -