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On the Anomalously Strong Dependence of the Acoustic Velocity of Alumina on Temperature in Aluminosilicate Glass Optical Fibers—Part II : Acoustic Properties of Alumina and Silica Polymorphs, and Approximations of the Glassy State
Author(s) -
Ballato Arthur,
Dragic Peter D.,
Martin Steve W.,
Ballato John
Publication year - 2016
Publication title -
international journal of applied glass science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 34
eISSN - 2041-1294
pISSN - 2041-1286
DOI - 10.1111/ijag.12141
Subject(s) - aluminosilicate , materials science , amorphous solid , silica glass , amorphous silica , range (aeronautics) , atmospheric temperature range , mineralogy , composite material , chemical engineering , thermodynamics , crystallography , organic chemistry , physics , chemistry , catalysis , engineering
The companion paper (Part I ; D ragic et al ., this issue), 1 resolved an anomaly involving the acoustical properties of high alumina content glass optical fibers. In Part II , some attributes of alumina and silica polymorphs are considered and used to infer approximate pertinent properties of amorphous Al 2 O 3 “glass.” An efficient computational method is used, based on a simple, self‐consistent version of the V oigt‐ R euss‐ H ill procedure. Applied to SiO 2 polymorphs, it provides insights into the short‐range ordering in “amorphous” silica.

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