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Electromagnetic Scattering from Metastable Immiscible Droplets in Glass
Author(s) -
SHETTERLY D. M.,
STUBLER R. J.
Publication year - 1975
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.1151-2916.1975.tb11451.x
Subject(s) - scattering , metastability , supersaturation , light scattering , materials science , chemical physics , diffusion , matrix (chemical analysis) , chemistry , molecular physics , condensed matter physics , optics , thermodynamics , physics , composite material , organic chemistry
Theoretical calculations of the electromagnetic scattering from a metastable immiscible glass are presented. The calculations assume an assemblage of independently growing spherical droplets sufficiently separated so that interparticle interference is insignificant. The growth of the droplets is controlled by diffusion from the supersaturated matrix. Sharp composition boundaries for the droplets are also assumed. The model is used to predict scattering for a metastable immiscible Na 2 O‐CaO‐SiO 2 glass. This scattering is compared to that predicted by the model of Goldstein. In addition to predicting light scattering for particles larger than those the Goldstein model permits, the present approach also allows calculation of small‐angle X‐ray scattering, which the Goldstein model does not. The compositions of the separating phases and the mechanism of growth can be estimated from electromagnetic scattering data when the present approach is used.