Journal of Materials Science

, Volume 29, Issue 12, pp 3221–3223 | Cite as

Preparation of 6.5wt% Si-Fe by mechanical alloying

  • O. Kohmoto
  • N. Yamaguchi
  • T. Mori


A mechanical alloying process was studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and magnetic measurements for 6.5 wt% Si-Fe powders. The alloying process was divided into three stages. In the first stage (<11 ks of the milling time), the Curie temperature, Tc, was the same as that of pure Fe, which indicated that the particles were not yet alloyed. At a milling time of 22 ks, the second stage, a large calorific value and a large coercive force, Hc, were observed and Tc was not clearly observed, which indicated that the particles had a precise lamellar structure and had a large internal stress. In the third stage (> 90 ks), the calorific value and Hc decreased. At the same time, a unique, and smaller Tc was observed, which indicated that the uniformity of the powders increased.


Polymer Differential Scanning Calorimetry Milling Calorimetry Material Processing 
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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • O. Kohmoto
    • 1
  • N. Yamaguchi
    • 2
  • T. Mori
    • 2
  1. 1.College of Liberal Arts and SciencesOkayama UniversityOkayamaJapan
  2. 2.Materials Research CenterTDK Corp.NaritaJapan

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