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Study of the Glass Transition Temperature of As‐ S Glasses for the Fabrication of Chalcogenide Optical Fibers
Author(s) -
Skripachev Igor V.,
ElAmraoui Mohamed,
Messaddeq Younes,
Santagneli Silvia H.
Publication year - 2013
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.12020
Subject(s) - materials science , glass transition , chalcogenide glass , chalcogenide , glass fiber , fabrication , range (aeronautics) , composite material , thermal expansion , atmospheric temperature range , optics , mineralogy , thermodynamics , optoelectronics , polymer , chemistry , medicine , alternative medicine , physics , pathology
Values of glass transition temperature ( T g ) and of linear expansion coefficient (α) for A s x S 100− x glasses were measured in the range of concentrations 35 × 42. Because of the importance of the glass formation region 35 × 42 for the optical fibers elaboration, special attention was made on high‐pure A s x S 100− x glasses. For the glass in the range of 35 × 38, we measure T g with the interval of x equal to 1 at.% of arsenic. We also measured the T g values with the interval of x equal to 0.5 at.% of A s. We obtained nonlinear behavior of T g , reflecting the change in molecular composition of A s‐ S glass in the glass composition range studied. The control of such parameters is important to produce optical fibers with specific numerical aperture.