Abstract
The application of inexpensive materials such as copper, zinc, lead, iron and steel slag’s in manufacturing of glass and glass-ceramic products in construction industry, lining materials as anti-corrosion and anti-abrasion coatings in metals and etc, has led to considerable progress in glass technology in recent years. The composition of slag glass-ceramics is mainly located in the SiO2-Al2O3-CaO-MgO system, in which one of the most important problems is nucleation and crystallization of initial glass. In the present work, the crystallization behavior of various compositions containing different nucleating agents Cr2O3, Fe2O3 and TiO2 in the single, double and triple forms was studied by differential thermal analysis (DTA). Crystalline phases were determined by the X-ray diffractometry and the micro-structural analysis was studies using the SEM micrographs after determination of proper nuclei. The three point bending strength, micro-hardness and the chemical resistance of the best glasses and glasses ceramics samples were determined. According to the results, the resulted glass-ceramic had a better specification than the stoneware floor tiles and the granite .The mechanical and surface properties of products considered as decoration stones and tiles.
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