By controlled crystallization of glass samples from BaO - B2O3 - TiO2  system glass ceramics can be obtained, based on borates and barium titanate (β BaB2O4 and BaTiO3), with potential uses in electronics and electrical engineering. In this paper are presented the obtaining and some properties of glasses from the ternary system BaO - B2O3 - TiO2, containing B2O3 between 20 and 50 molar%. For the obtained samples were determined density, thermal expansion coefficient, micro hardness, viscosity and hydrolytic stability. Determinations were also made by differential thermal analysis (DTA). The variation of the determined properties according to the oxide glass composition was explained.




Back to Contents