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Influence of Hydroxyl Group on IR Transparency of Tellurite‐Based Glasses
Author(s) -
Guery Guillaume,
Cardinal Thierry,
Fargues Alexandre,
Rodriguez Vincent,
Dussauze Marc,
Cavagnat Dominique,
Thomas Philippe,
Cornette Julie,
Wachtel Peter,
Musgraves John David,
Richardson Kathleen
Publication year - 2014
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.12044
Subject(s) - materials science , crystallization , relative humidity , impurity , indentation hardness , molar ratio , group (periodic table) , analytical chemistry (journal) , molar volume , mineralogy , chemical engineering , microstructure , organic chemistry , composite material , chemistry , thermodynamics , catalysis , physics , engineering
A study of the glass properties with two opposite levels of hydroxyl content is presented for two different tellurite glass families with molar composition 70TeO 2 ‐10Bi 2 O 3 ‐20ZnO and 80TeO 2 ‐20Nb 2 O 5 . We show that melting tellurite‐based glasses in a dried‐oxidant atmosphere (relative humidity <1%) reduces drastically the OH impurities. The effect of reducing the OH content on the glass properties such as characteristic temperatures, crystallization stability (ΔT), density, and microhardness is investigated.