This study investigates the optimisation of melting process for the glass comprising SiO2-B2O3-Na2O-BaO under microwave heating (MW). Batches were melted at different temperatures in the range of 900-125 deg C to optimise melting conditions. XRF suggests amorphous nature of samples melted above 1150 deg C. Optimisation of melting time was carried out by varying soaking time (8-60m) at 1250 deg C. UV-Vis-NIR spectra level reveal ~90 transmission over 300-2000 nm wavelength range for glass melted at 1250 deg C. Optical microscopic images suggest that the bubble-free glass can be produced at 1250 deg C for 1 hour melting in MW heating. MW heating also helps in reducing OH content in glass. However, OH concentration is found to increase with melting time.
