M. Rezvani, B. Eftekhari Yekta, V. K. Marghussian,
Volume 5, Issue 1 (3-2008)
Abstract
Abstract: The application of inexpensive materials such as copper, zinc, lead, iron and steel slag 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 the lack of bulk
crystallization. To resolve the above-mentioned problem, the crystallization behavior of various
compositions containing different nucleating agents Cr2O3 , Fe2O3 and TiO2 in the single, double
and triple forms were studied by differential thermal analysis (DTA).The precipitated crystalline
phases was determined by the X-ray diffractometry and the micro-structural analysis was studies
using the SEM micrographs. The three point bending strength, micro-hardness and the chemical
resistance of the best composition were determined. According to the results, the resulted glassceramic
had a better specification than the stoneware floor tiles and the porcelain one, which are
considered as the two important competitors for it.
