Atomic-Scale Structural Evolution upon Crystallite Nucleation and Growth in Amorphous Fe78B13Si9
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概要
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The structural evolution upon nucleation and growth of nanocrystals was investigated for Fe78B13Si9 alloy. Upon the onset of $\alpha$-Fe nanocrystallization, free volumes dominantly surrounded by Fe atoms are developed in the intergranular amorphous phase. Along with the growth of Fe-based nanocrystallites, free volumes in the intergranular amorphous phase enlarge and Fe atoms in the surroundings of the free volumes get partially replaced by B and Si. The results suggest that nanocrystallization is associated with a local structural relaxation in the metastable intergranular amorphous phase.
- 2009-08-25
著者
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KOBAYASHI Yoshinori
National Chemical Laboratory for Industry
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Nakata Masataka
Department Of Astronomy And Earth Science Tokyo Gakugei University
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Amemiya Yoshiyuki
Department Of Advanced Materials Science Graduate School Of Frontier Sciences The University Of Toky
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Sato Kiminori
Department Of Electrical Communication Faculty Of Engineering Tohoku University
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Fujimoto Koichiro
Department of Astronomy and Earth Sciences, Tokyo Gakugei University, Koganei, Tokyo 184-8501, Japan
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Murakami Hideoki
Department of Environmental Sciences, Tokyo Gakugei University, Koganei, Tokyo 184-8501, Japan
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Murakami Hideoki
Department of Astronomy and Earth Sciences, Tokyo Gakugei University, Koganei, Tokyo 184-8501, Japan
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Schaefer Hans-Eckhardt
Institut für Theoretische und Angewandte Physik, Universität Stuttgart, Pfaffenwaldring 57/VI, D-70550 Stuttgart, Germany
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Sprengel Wolfgang
Institute of Materials Physics, Graz University of Technology, Petersgasse 16, A-8010 Graz, Austria
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Ueji Yoshinori
Department of Advanced Materials Science, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
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