Glass-Ceramics is known to have very good mechanical properties while combining good properties from glass or ceramics which otherwise having them separately. Such good mechanic properties allow machining to any desirable shape or form, which is important in ornamental or fashionable area. In this work, soda lime glass powder (SLG), combining with other precursor such as SiO_2, TiO_2, and pigment oxide powders, was prepared. Weight composition of SLG-SiO_2-TiO_2-Pigment oxide, prepared by conventional melt-quenching technique, was investigated. The thermal profile of glass transition and crystallization were studied by differential scanning calorimetry (DSC). The crystal structure of the sintered glass-ceramics was carried out by X-ray diffraction (XRD) and the microstructure studies performed by scanning electron microscopy (SEM). The results show that devitrification of this glass system leads to glass-ceramics material. Its application in artificial opal gemstone work is foreseen.
Keywords: Differential scanning calorimetry (DSC), Glass-Ceramics, Soda lime glass (SLG)