Structure Formation in the System TiO2–BaCO3 in Concentrated Solar Radiation

Аннотация

Phase formation is studied in the system BaCO₃ + TiO₂ by means of solid-phase reactions and synthesis from melt obtained by the action of concentrated solar radiation of different intensities. It is shown that barium metatitanate BaTiO₃ in the cubic system forms at intensities up to 100 W/cm². As the radiation intensity increases, a tetragonal phase of barium titanate forms. The barium titanates obtained have high permittivity (3000 – 3200) and low dielectric losses.