Crystallisation of some glasses in CaO_MgO-Al_2O_3-SiO_2 system

摘要

The aim of the paper is to present a set of experiments having the main foal to find an utilisation of the offals (metallurgical slags, ashes and slags from thermal-electric power station, residues from chemical industry). This type of materials are introduced in mixtures which are further melted and the resulted glass are crystallised under control. the data illustrate the consequence of using Cr_2O_3 as crystallisation stimulator for a group of samples with a high content of CaO.