properties’ of glass

The chemical compositions and properties of glass of different systems for the production of glass ionomer dental cements (GIC) were analyzed. For the synthesis of glass, the basic system 4SiO2–3Al2O3 – xNb2O5 – CaO with the content of Nb2O5 8.8 and 16.2% (wt.) is proposed. High-temperature technology and parameters of glass production for GIC are presented in the article. The properties of synthesized niobium-containing glass were determined and analyzed. The effect of niobium oxide on the crystallization ability of glass was determined by the method of differential thermal analysis.