Affiliation:
1. Univ Rennes CNRS, ISCR (Institut des Sciences. Chimiques de Rennes) – UMR 6226 Rennes France
2. Faculty of Materials Science and Technology Slovak University of Technology Trnava Slovakia
3. Laboratory of Inorganic Materials Institute of Rock Structure and Mechanics of the Czech Academy of Sciences Prague Czech Republic
4. Laboratory of Inorganic Materials University of Chemistry and Technology Prague Prague Czech Republic
Abstract
AbstractGlasses in the TeO2–Ga2O3–M2O (M═Li, Na, or K) systems were synthesized by a melt‐quenching technique. The glass forming areas were delimited for each system. Systematic analyses were performed on two series of samples—the first one with a constant TeO2/Ga2O3 ratio of 85/15, that is, [(TeO2)0.85(Ga2O3)0.15]100−x[M2O]x with 0 ≤ x ≤ 25 (with a step of 5 mol%), the second one with a constant alkaline oxide concentration of 10 mol%, that is, [TeO2]90‐y[Ga2O3]y[M2O]10 with 5 ≤ y ≤ 15 (with step of 2.5 mol%). The values of the glass transition temperature, density, and optical transmission parameters (the positions of short‐ and long‐wavelength absorption edge and the maximum transmittance value) were determined. The changes in these parameters were studied for varying glass compositions. In addition, the values of refractive index were measured at various wavelengths across the whole transparency region reaching from the visible up to the mid‐infrared range.
Funder
European Regional Development Fund
Grantová Agentura České Republiky
Campus France