A Dislocation Model of Amorphous Metals
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概要
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A dislocation model of amorphous metals is co?astructed to meet the require-m.ent of global connectivity. Noncrysta]Jine nature of atomic configuratiouas atthe screw dislocation core is discussed in connectiot? with Berutal polyhedra andritags of fivefold symmetry which have beett found iut the dense random packingm.odeIs. Relative poptulation of trigonaJ prisms to that of tetragonal dodecahedrais determiuaed by different degrees of symmetry breakiuag of the core structure.Pair distributiott functions are calculated for the dislocatiott model after relaxa-tion of atom. positions and a good agreement with experimeztts is obtained for thedislocation density of jg14, 10" cm-". For the high density the core structureis found to keep nearly the same local configuratiot't as that of 811 isolated dislo-cation, and, thus, the dislocation model contains ratty Bernal polyhedra.
- 社団法人日本物理学会の論文
- 1980-09-15
著者
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Ninomiya Toshiyuki
Department Of Physics Faculty Of Science University Of Tokyo
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KOIZUMI Hirokazu
Department of Physics, Meiji University
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Koizumi Hirokazu
Department Of Physics University Of Tokyo:the Institute Of Industrial Science University Of Tokyo
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Koizumi Hirokazu
Department Of Physics School Of Science And Technology Meiji University
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