Chemical synthesis of nanocrystalline BaTiO3 and Ba1-xSrxTi1-yZryO3 [(i) x=0.03, y=0 (ii) x=0, y=0.03] ceramics

Nanocrystalline BaTiO3 powders were prepared via a chemical process. This process involved the addition of aqueous barium nitrate, titanyl nitrate, triethanolamine (TEA) and sucrose to produce a homogeneous complex solution. After the complete evaporation of homogenous solution, the Ba-Ti-TEA-sucrose complex decomposed and produced black, fluffy precursor materials. The precursor materials on calcinations to 700 degreesC for 2 h produced nanocrystalline BaTiO3 with the corresponding average x-ray and TEM particle size similar to20 nm. BaTiO3 powders modified 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 energy dispersive x-ray analysis.