Wiley, International Journal of Applied Glass Science, 2(5), p. 178-184, 2013
DOI: 10.1111/ijag.12044
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A study of the glass properties with two opposite levels of hydroxyl content is presented for two different tellurite glass families with molar composition 70TeO2-10Bi2O3-20ZnO and 80TeO2-20Nb2O5. 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.