ELASTIC STRESS EFFECTS ON CRITICAL CLUSTER SHAPES

Citation
J. Moller et al., ELASTIC STRESS EFFECTS ON CRITICAL CLUSTER SHAPES, Journal of non-crystalline solids, 240(1-3), 1998, pp. 131-143
Citations number
25
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Material Science, Ceramics
ISSN journal
0022-3093
Volume
240
Issue
1-3
Year of publication
1998
Pages
131 - 143
Database
ISI
SICI code
0022-3093(1998)240:1-3<131:ESEOCC>2.0.ZU;2-T
Abstract
Crystallization of solids at planar solid-air surfaces was analyzed. S hape and size of clusters of the newly evolving phase are determined w hich correspond to the minimal work of cluster formation in nucleation . Both elastic field and surface energy terms are taken into considera tion. This work is not restricted to the consideration of spherical in terfaces cluster-ambient solid phase but allows, more general arbitrar y shapes of the new phase. Application to crystallization of glassform ing melts, gives additional support to the idea that differences in th e degree of evolution of elastic strains in crystallization in the bul k and near external or internal surfaces of highly viscous glassformin g melts in the vicinity of the temperature of vitrification T-g may be the origin for the preferential surface crystallization of glasses. ( C) 1998 Elsevier Science B.V. All rights reserved.