Study of the supramolecular structure of samples based on the BaTiO3 nanopowder during sintering

摘要

The paper describes the investigation of the supramolecular structure of samples based on the BaTiO3 nanopowder during sintering. For this research was obtained powder with specific surface area of 16, 8 m2/g by non-isothermal decomposition of barium titanyl-oxalate powder. Compaction of the powder was conducted in a steel mold to a relative density of 55 % of theoretical. Sintering of barium titanate was carried out at heating rates from 100 to 3000 °C/h to 1000÷1300 °C. The resulting sam-ples were investigated by several methods: the static volumetric adsorption structures of nitrogen adsorption at low-temperatures, XRD, microscopy and other.