Packing Characteristics of Atomic Structures of Model Icosahedral Phases
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概要
- 論文の詳細を見る
Voronoi polyhedra and tetrahedra-octahedra packing analyses have been performed for atomic structures of two types of model icosahedral phases (I-phases), the Mackay icosahedron (MI) type and triacontahedron (TC) type. The structures have been constructed based on the models of Henley and Elser. In the TC-type I-phase, Voronoi volumes can be divided into large and small, and the structure consists mostly of tetrahedral units, indicating that this type of I-phase is a dense packing of two sizes of atoms. In the MI-type I-phase, no distinct separation of the distribution of the Voronoi volumes is seen, and the structure contains a large number of octahedral units, indicating that the MI-type I-phase alloys are not close packings of different-sized atoms. The compositions of existing I-phase alloys are discussed in relation to the above analyses.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 1989-10-20
著者
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Mera Yutaka
Department Of Applied Physics Graduate School Of Engineering The University Of Tokyo
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Tei Tetsushoku
Institute For Solid State Physics The University Of Tokyo
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Kimura Kaoru
Institute For Solid State Physics The University Of Tokyo
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Takeuchi Shin
Institute For Solid State Physics The University Of Tokyo
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Maeda Koji
Department Of Applied Physics Faculty Of Engineering The University Of Tokyo:the Institute For Solid
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Takeuchi Shin
Institute for Solid State Physics, University of Tokyo, Roppongi, Minato-ku, Tokyo 106
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MAEDA Koji
Department of Agricultural Chemistry, University of Osaka Prefecture
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Maeda Koji
Department of Applied Physics, Faculty of Engineering, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113
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Tei Tetsushoku
Institute for Solid State Physics, University of Tokyo, Roppongi, Minato-ku, Tokyo 106
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