The effect of mechanical milling on the structure and magnetic properties of Fe2Sc Laves phase

S. K. Xia, E. Baggio-Saitovitch, Victor Antonio Peña Rodriguez, E. Passamani, A. Y. Takeuchi, M. Ghfari, R. R. Avillez, F. C. Rizzo Assunção

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Abstract

The Fe2Sc intermetallic compound with C14 Laves phase structure was mechanically milled. The structural evolution and the change in atomic order were followed by X-ray diffraction and Mössbauer spectroscopy. The influence of mechanical milling on the magnetic properties was studied by Mössbauer spectroscopy and magnetization measurement. The results indicated that ball milling induced a partial chemical disorder followed by an amorphization. The partial chemical disorder and the amorphization lead to an increase in magnetic moment of Fe in the materials. The amorphous phase exhibits a ferromagnetic behavior with Curie temperature of about 250 K, which is much lower than that of 540 K for the original compound. The crystallization temperature of the amorphous phase is about 873 K, as determined by DSC measurement.

Original languageEnglish
Pages (from-to)85-89
Number of pages5
JournalJournal of Alloys and Compounds
Volume242
Issue number1-2
DOIs
StatePublished - 15 Sep 1996
Externally publishedYes

Bibliographical note

Funding Information:
We thank M.F. Silva Lopes for analysis of the compositions of the samples by EDS. This work was supported by Grant No. 301118/93-0 from CNPq.

Keywords

  • Amorphization
  • Atomic order
  • FeSc Laves phase
  • Magnetic properties
  • Mechanical milling

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