STUDY OF TECHNOLOGICAL PARAMETERS OF OBTAINING CELSIANE AND SLAWSONITE CERAMICS USING SINGLE-STAGE TECHNOLOGY

On the basis of RO–Al2O3–SiO2 system, radiotransparent ceramic materials cordierite, celsian, and anorthite composition, which have low dielectric characteristics, are obtained. These requirements met by one main phases BaO–Al2O3–SiO2 system – celsian (BaAl2Si2O8), melting point is 1740 °C, beginning active phase formation occurs at a processing temperature 1300 as well SrO–Al2O3–SiO2 slavsonite (SrAl2Si2O8), undergoes congruent 1765 1400 °C. The purpose work to study technological parameters obtaining ceramics one-stage technology. According subsolidus structure three-component (RO = ВаО, SrO), it advisable synthesize necessary from pure raw and, taking into account presence impurities that impair synthesis crystalline carried out technical materials. Figurative points compositions selected compounds correspond their stoichiometric composition (for slavsonite, wt. %: SrO 31,99; Al2O3 30,93; SiO2 37,08; for BaO 40,85; 27,17; 31,98). It was established physical characteristics obtained samples improve with an increase in firing 100 but they far desired level. within radio-transparent Taking investigated properties radiographs fired order obtain densely sintered material, decided investigate model addition intensifying additives influence on