Chemical synthesis of nanocrystallineBaTiO3 and Ba1−xSrxTi1−yZryO3 [(i) x = 0.03, y = 0 (ii) x = 0, y = 0.03 ] ceramics

Abstract

Nanocrystalline BaTiO3 powders were prepared via a chemical process. This process involved the addition ofaqueous barium nitrate, titanyl nitrate, triethanolamine (TEA) and sucrose toproduce a homogeneous complex solution. After the complete evaporation ofhomogenous solution, the Ba–Ti–TEA–sucrose complex decomposed and producedblack, fluffy precursor materials. The precursor materials on calcinations to700 °C for 2 h producednanocrystalline BaTiO3 with the corresponding average x-ray and TEM particle size nm. BaTiO3 powdersmodified with SrTiO3 [Ba1−xSrxTi1−yZryO3 (x = 0.03,y = 0)]and BaZrO3 [Ba1−xSrxTi1−yZryO3 (x = 0,y = 0.03)] were also prepared using this route and investigated through x-ray diffraction and energydispersive x-ray analysis.