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Elastic Properties of Glasses
Author(s) -
SMYTH HAROLD T.
Publication year - 1959
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1959.tb12953.x
Subject(s) - deformation (meteorology) , silicate glass , work (physics) , materials science , poisson's ratio , silicate , tetrahedron , ion , elastic energy , composite material , poisson distribution , mineralogy , thermodynamics , crystallography , chemistry , physics , mathematics , statistics , organic chemistry
A theoretical study of the possible mechanisms involved in the elastic deformation of a silicate glass indicates that if the only work done when such a glass is deformed is in the stretching or compressing of the Si‐O‐Si links, Poisson's ratio should be 0.25. Values less than this can be explained when the energy of deformation of the SiO 4 tetrahedra is considered and values greater than 0.25 if one takes into account the work done in deforming large modifying ions which fill the interstices in which they are located.