Magnetic Susceptilities of Metals and Alloys in Molten State

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  • Takeuchi Sakae
    The Research Institute for Iron, Steel and Other Metals, Tôhoku University
  • Endo Hirohisa
    The Research Institute for Iron, Steel and Other Metals, Tôhoku University

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  • 金属ならびに合金の熔融状態における帯磁率
  • キンゾク ナラビニ ゴウキン ノ ヨウユウジョウタイ ニ オケル タイジリツ

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Abstract

For the purpose of obtaining some knowledge concerning the electronic structure of molten metals, the magmetic susceptibilities of molten metals and alloys were measured precisely as a function of temperature or alloys concentration. No change in magnetic susceptibility with rise of temperature was observed in the molten phase of pure metals such as Ag, Cd, In, Sn, Pb, Bi and Sb and of alloy systems such as Bi-Ag, Bi-Cd, Bi-In, Bi-Sn, Pb-Sn and Pb-Sb. The measured susceptibilities of these metals and alloys in molten state were in good agreement with the theoretical values given by the sum of the known diamagnetic susceptibility of ions and the paramagnetic susceptibility calculated by application of Pauli-Landau’s formula for the degenerated free electron gas composed of valuence electrons of atoms in molten metals. The change in magnetic susceptibility with the concentration of molten alloys was found to depend mainly upon the change in electron density in the alloys.

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