The Magnetization of Face Centered Cubic Iron-Nickel Alloys in the Vicinity of Invar Region

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概要

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• Recently much interest has been directed toward anonmalous magnetic properties of the face centered cubic Fe-Ni alloys near the invar compositions. Crangle and Hallam^<1)> suggested that the saturation magnetization of the alloys was likely to decrease abruptively in the neighborhood of 30% Ni. Also Johnson, Ridout and Cranshaw^<2)>, and Takagi, Nakamura and Shiga^<3)> observed that the inner magnetic field measured from Mossbauer absorption spectra is decreased near the above-mentioned composition. On the basis of these experimental facts, Weiss^<4)> proposed an idea that there are two electronic configurations in face centered cubic Fe, i. e. antiferromagnetic γ_1, and ferromagnetic γ_2. However, the martensitic transformation during cooling of the alloy up to 32% Ni makes it difficult to study magnetic properties of face centered cubic phase at low temperature, and to draw therefrom a conclusive discussion. Present author^<5),6)> found that the martensitic transformation is suppressed to liquid nitrogen temperature in the case of submicron fine particles, even if the composition is below 30% Ni. In this paper we studied the magnetization-composition curve of face centered cubic Fe-Ni alloy using finely powdered specimens.

• 社団法人日本物理学会の論文
• 1964-02-05

著者

• Bando Yoshichika

  Department Of Chemistry Faculity Of Science Kyoto University

関連論文

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• The formation of superstructure of Fe_3Ni in fine particles
• The Magnetization of Face Centered Cubic Iron-Nickel Alloys in the Vicinity of Invar Region

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