RELATION BETWEEN VALENCE FORCE-CONSTANTS AND ELASTIC-CONSTANTS IN ALPHA-ALUMINA - EVOLUTION AT HIGH-TEMPERATURES

Authors
REPELIN Y HUSSON E PROUST C
Citation
Y. Repelin et al., RELATION BETWEEN VALENCE FORCE-CONSTANTS AND ELASTIC-CONSTANTS IN ALPHA-ALUMINA - EVOLUTION AT HIGH-TEMPERATURES, Journal of solid state chemistry, 116(2), 1995, pp. 378-384
Citations number
27
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Physical
Journal title
Journal of solid state chemistry → ACNP
ISSN journal
00224596
Volume
116
Issue
2
Year of publication
1995
Pages
378 - 384
Database
ISI
SICI code
0022-4596(1995)116:2<378:RBVFAE>2.0.ZU;2-X
Abstract
A general valence force field is determined from the experimental vibr ational frequencies and elastic constants of alpha-Al2O3 in order to r elate the macroscopic elasticity of this material to its microscopic e lasticity characterized by the bond-stretching and angle-bending force constants. The evolution of the frequencies, elastic constants, and f orce field as a function of temperature is discussed. (C) 1995 Academi c Press, Inc.