On the Amorphous State of the Binary System of Nickel-Sulfur

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概要

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• We prepared the simultaneously electro-deposited Ni-S containing 0, 9, 13, 17 and 25 wt.% sulfur and studied their crystalline forms by X-ray diffraction patterns. The diffraction patterns of Ni-S containing 13 and 17% S show a uniform fog, and 7% S shows a halo, and 0 and 25% S are the same as those of Ni and Ni_3S_2 respectively. All amorphous samples crystallized after they had been heated to 180℃, and their diffraction patterns show the crystalline states of the two phase region of Ni and Ni_3S_2. The electrical resistances of these samples were measured in a vacuum furnace and in an oil bath. The resistances of these samples containing 9, 13 and 17% S gradually decrease as the temperature increases and suddenly drop at 180℃, then follow the usual behavior of the common metals for both increasing and decreasing temperatures. In the case of 0% S it does not differ from that of the pure nickel. We conclude that the amorphous state has the structure of a certain regularity, and that 180℃ is the transition point of the amorphous Ni-S to the perfect crystal.

• 1955-06-05

著者

• Sawada Masao

  Department Of Physics Faculty Of Science Osaka University

• Shiraiwa Toshio

  Department Of Physics Faculty Of Science Osaka University

• Tsutsumi Kenjiro

  Department Of Physics Faculty Of Science Osaka University

• Obashi Masayoshi

  Department Of Physics Faculty Of Science Osaka University

• Obashi Masayoshi

  Department Of Physics College Of General Education Osaka University

• SHIRAIWA Toshio

  Department of Physical Electronics, Tokyo Institute of Technology

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