Crystallographic properties of hydrothermal barium titanate crystallites

摘要

The crystallographic properties and defects of hydro- thermally grown barium titanate crystallites are reported. When a precursor with a Ba:Ti molar ration of 1.0 was used, Cubic barium titanate crystallites were formed. However, When the precursor Ba:Ti molar ratio was 3.0, the product Was tetragonal. The defect concentration (including OH Defects and barium vacancies) was higher in cubic crystalli- Tes than in tetragonal crystalolites.