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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
Article

Abstract

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.

Keywords

Polymer Differential Scanning Calorimetry Milling Calorimetry Material Processing 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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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