センパーム合金に現われる3元化合物σ相の結晶構造について

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タイトル別名
  • On the Crystal Structure of a Ternary Compound σ-Phase Appearing in “Senperm” Alloys. (Fundamental Research of Constant Permeability Alloys, 3rd Report)
  • センパーム ゴウキン ニ アラワレル 3ゲン カゴウブツ シグマソウ ノ ケッショウ コウゾウ ニ ツイテ
  • On the Crystal Structure of a Ternary Compound σ-Phase Appearing in “Senperm” Alloys. (Fundamental Research of Constant Permeability Alloys, 3rd Report)

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抄録

In the previous papers, it was reported that in alloys of Fe-Ni-Si system a ferromagnetic ternary compound σ-phase is formed and its chemical formula is inferred to be Fe11Ni5Si4 (60.2%Fe, 28.8%Ni, 11.0%Si). In the present paper, the crystal structure of this σ-phase has been studied by X-ray diffraction technique with powder camera and Geiger-counter spectrometer. Through interpretation of powder-pattern photographs and recording charts, as well as measurement of density of an alloy almost consisting of σ-phase by pycnometer method, the following results have been obtained: (1) The σ-phase has crystal structure of simple cubic type with lattice parameter a0=6.148 Å. (2) Its measured density is 7.30 g/cc (at 17°C). (3) It contains 20 atoms, or one molecule of Fe11Ni5Si4 in its unit cell.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 24 (8), 538-540, 1960

    公益社団法人 日本金属学会

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