Influence of gamma ray on elastic and structural properties of recycled window glass doped with chromium oxide using ultrasonic contact technique and FTIR spectroscopy

Abstract

Glasses of system 90RWG-10Na2O-x CrO3 (RWG stands for recycled window glass and x = 0, 0.001, 0.01, 0.1, 1 mol %) have been prepared using the melt-quenching technique. The Archimedes principle was used to measure density of the glass samples, and then these data were used to calculate their molar volumes. Ultrasonic velocities at room temperature were measured using the ultrasonic contact technique at 4 MHz frequency. Elastic moduli have been calculated. The obtained results were compared with theoretical values which were calculated from the Makishima-Mackenzie model. The glass samples were gamma irradiated using a 60Co gamma cell at the total gamma dose of 1,000 Gy. Then the effects of gamma ray on structural properties of the glasses were investigated by means of their elastic moduli. FTIR spectra were also recorded to support the result from ultrasonic contact technique. The results show that there are significant changes in number of NBO in the structural glass due to an addition of the chromium oxide and gamma irradiation.