Abrupt slope change in temperature dependence of resistivity in Ni-Fe-O sintered body (特集 環境保護に必須のナノテク材料)
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概要
- 論文の詳細を見る
NiFe2O4+ 0∼100 vol.% NiO sintered bodies were prepared by mixing NiFe2O4 and NiO powders, and subsequent sintering at 800°C in air for 1 hour. Slopes in the temperature dependence of resistivity curves in the system have been found to abruptly changed, except for a composition of NiFe2O4+ 50 vol.% NiO. To investigate the mechanism of this phenomenon, NiFe2O4 powder was analyzed by high temperature X-ray diffraction, a thermo-gravimetry and differential thermo analysis. In the range from 100 to 300°C, the structure of NiFe2O4 phase does not change. Therefore the mechanism of this phenomenon is not related to any phase transition or the contamination of NiO.
- 社団法人粉体粉末冶金協会の論文
著者
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NIIHARA Koichi
Extreme Energy-Density Research Institute, Nagaoka University of Technology
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SUZUKI Tsuneo
Extreme Energy-Density Research Institute, Nagaoka University of Technology
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NAKAYAMA Tadachika
Extreme Energy-Density Research Institute, Nagaoka University of Technology
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ONDA TETSUHIKO
Department of Mechanical Engineering, Faculty of Engineering, Tottori University
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HAYAKAWA MOTOZO
Department of Mechanical Engineering, Faculty of Engineering, Tottori University
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Suzuki T
Extreme Energy-density Res. Inst. Nagaoka Univ. Of Technol.
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Niihara Koichi
Extreme Energy-density Res. Inst. Nagaoka Univ. Of Technol.
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SUZUKI Shuntaro
Extreme Energy-Density Research Institute, Nagaoka University of Technology
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Akao Takahiro
Department of Mechanical Engineering, Tottori University
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Akao Takahiro
Department Of Mechanical Engineering Tottori University
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Suzuki Tsuneo
Extreme Energy-density Res. Inst. Nagaoka Univ. Of Technol.
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Onda Tetsuhiko
Department Of Mechanical And Aerospace Engineering Tottori University
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Nakayama Tadachika
Extreme Energy-density Research Institute Nagaoka University Of Technology
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Hayakawa Motozo
Department Of Mechanical And Aerospace Engineering Tottori University
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Suzuki Shuntaro
Extreme Energy-density Research Institute Nagaoka University Of Technology
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AKAO Takahiro
Department of Mechanical and Aerospace Engineering, Tottori University
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