Fire Resistance Glass Crystalline Fibres

A synthesis of 6 glasses from the system SiO2-CaO-MgO with constant addition of (5%) Na2O as the fluxing agent and 1.5% content of Cr2O3 as the crystallisation nucleator was performed. The fibres obtained from these glasses were formed into glass-crystalline fibres in the process of controlled crystallisation according to established parameters of thermal treatment. X-ray phase analysis has shown that the dominating crystalline phase was diopside and wollastonite. The tensile strength of the fibres, their fastness to water and thermal resistance were measured.