Dynamic Compaction of Amorphous Co_<70.3>Fe_<4.7>Si_<15>B_<10> Alloy Powders Obtained by a Cavitation Method
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概要
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Amorphous Co_<70.3>Fe_<4.7>Si_<15>B_<10> alloy powders prepared by a cavitation method were dynamically compacted by using a propellant gun. The compacts retained amorphism when they were formed under shock pressures below 8GPa. The highest degree of compaction gave a density of 7.67 Mg/m^3 or 99.6% of that of the amorphous ribbons. After proper heat-treatment, the compact of 0.13mm thick gave a coercive force of 10mOe and a permeability at 100Hz of 12000. Further annealing in rotating magnetic field was found to make the permeability higher. An evident effect of powder size on the soft magnetic properties of compacted powders was also found.
- 東北大学の論文
- 1985-03-26
著者
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SYONO Yasuhiko
The Research Institute for Iron, Steel and Other Metals, Tohoku University
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MASUMOTO Tsuyoshi
The Research Institute of Electrical and Magnetic Materials
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Syono Yasuhiko
The Research Institute For Iron Steel And Other Metals
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Fukuoka Kiyoto
The Research Institute For Iron Steel And Other Metals
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Toda Yukio
Riken Co. Ltd.
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Ogura Tsugio
The Research Institute for Iron, Steel and Other Metals
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Ogura Tsugio
The Research Institute For Iron Steel And Other Metals
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Masumoto Tsuyoshi
The Research Development Corporation Of Japan:the Research Institute For Iron Steel And Other Metals
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