2026-08-25T10:02:30Z https://meral.edu.mm/oai

oai:meral.edu.mm:recid/2549 2022-03-24T23:14:43Z 1582963390870:1582967549708 user-uy

Effect of Thermal Annealing on xB2O3- (95-x) TeO2 - 5Fe2 O3 Glasses Myo Lwin Nay Myo Khine Ye Chan Pho Kaung Compositions of on xB2O3- (95-x) TeO2 - 5Fe2 O3 glass system (with x = 0, 10 and 20) treated by isothermal annealing have been investigated using X-ray powder diffraction (XRD), Differential Thermal Analysis (DTA), Fourier Transform Infrared (FT-IR) and Raman spectroscopic techniques. The XRD data reveals the formation of a paratellurite (α- TeO2) and irontellurite on isothermal annealing. The changes in glass transition temperature (Tg) and crystallization temperature (Tc)max with composition x are interpreted in terms of the mixed-former effect using data of DTA. FTIR and Raman spectra of this glass system have been analyzed. 2009 http://hdl.handle.net/20.500.12678/0000002549 https://meral.edu.mm/records/2549