Study of Nucleation and Crystallization of SLG Mixing with SiO2, ZnO, TiO2 and CuO by SEM/EDX
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Abstract
This study presents the progression of nucleation and crystallization from composition of soda lime glass (SLG) and oxides as 60SLG-35SiO2-2TiO2-2ZnO-1CuO through single step sintering at 850° C. X-ray diffraction (XRD) showed a higher degree of crystallinity and larger crystallite size of a-SiO2 after sintering. It was also observed that plane (100) shrank to a smaller d100 spacing after sintering. XRD peaks from other oxides than SiO2 decreased dramatically after sintering; possibly signifying a transition into the silica network. The microstructure of the sintered samples was analysed using scanning electron microscope (SEM) and SEM/energy dispersive X-ray spectroscopy (SEM/EDX). The SEM/EDX analysis revealed SiO2 grains and whiskers of crystalline phase in many areas. A lower concentration of zinc and higher concentration of titanium were found to be associated with whiskers. This work has shown a possibility to utilize single-stage heat treatment for nucleation and crystallization of soda lime glass (SLG).
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