Measurements of Glass Transition Temperature of Na-Borophosphate Glassesby Thermal Analysis
Keywords:
Glass ; Thermal Analysis, Annealed Glass, X-Ray Diffraction, Melt Quenching.Abstract
Glasses of the series of xNa2O - (100-x) B2O3 (x=25, 30, 35, 40, 45,..) and 30Na2O-(70-x) B2O3-xP2O5 (x= 15, 20, 25, 30, 35) have been prepared by standard melt-quench technique. The glass samples were characterized using X-ray diffraction (XRD), thermo gravimetric analysis (TGA) and differential thermal analysis (DTA) techniques. The X-ray diffraction pattern shows that all the samples no sharp Bragg's peak, but only a broad diffuse hump around low angle region. The amorphous phase of the prepared glass samples was confirmed from their XRD, TGA and DTA profiles.
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