Grain Boundary Segregation of Non-magnetic Phases during Crystallization of Co-Based Glasses(<Special Issue>Recent Progress of High-Density Disk Storage)
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概要
- 論文の詳細を見る
The segregation of non-magnetic phases such as borosilicate and Cr was investigated by crystallization behavior during the surface and bulk crystallization of Co-based amorphous alloys. The concentration of metalloids (B and Si) determined the extent of grain boundary segregation of borosilicate glass during surface crystallization. During the bulk crystallization of (Co_<75>Cr_<25>)_<0.8>Si_5B_<15> amorphous alloy, solute rejection of Cr resulted in the nucleation of Cr-deficient ferromagnetic crystals and non-magnetic σ-phase was subsequently precipitated along the grain boundary. These results show that crystallization process, I.e. nucleation and growth can be controlled to optimize the microstructure to reduce media noises in Co-based recording media.
- 社団法人電子情報通信学会の論文
- 2003-09-01
著者
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KIM Chang
Department of Internal Medicine and AIDS Research Institute, Yonsei University College of Medicine
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YOON Chong
Department of Materials Science & Engineering, Hanyang University
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Kim Chang
Department Of Ceramic Science And Engineering Korea Advanced Institute Of Science And Technology
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Yoon Chong
Department Of Materials Science & Engineering Hanyang University
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Byun Tae
Department Of Materials Science & Engineering Hanyang University
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OH Yoong
Department of Materials Science & Engineering, Hanyang University
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Kim Chang
Department Of Materials Science & Engineering Hanyang University
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Yoon Chong
Department Of Communication And Information Hankuk Aviation University
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Oh Yoong
Department Of Materials Science & Engineering Hanyang University
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Kim Chang
Department Of Biochemistry University Of Oxford
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