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Author Ouyang, L. ♦ Ching, W. Y.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ GLASS ♦ MICROSTRUCTURE ♦ SILICON NITRIDES ♦ AMORPHOUS STATE ♦ MATHEMATICAL MODELS ♦ BONDING ♦ LATTICE PARAMETERS ♦ NETWORK STRUCTURE
Abstract A systematic method to generate periodic continuous random network models for covalent glasses is described. The method is based on the judicious choice of elementary subunits which satisfy local bonding. By connecting the subunits carefully to meet the bonding requirements of the corner atoms, an initial model with proper topological structure is formed. Randomness is introduced through the random distribution of different subunit types. The model is then relaxed by suitable potential functions to minimize the distortions. The method has been successfully applied to obtain amorphous Si{sub 3}N{sub 4} models of various sizes. {copyright} {ital 1996 The American Physical Society.}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-12-01
Publisher Department University of Missouri
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 54
Issue Number 22
Organization University of Missouri


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