Fabricating Uniform Tetragonal Barium Titanate ...
Sand-milling machine was firstly utilized to crush and disperse the raw materials. A homogenous and well-dispersed mixture of TiO2 and BaCO3 (<30nm) was obtained. The solid state reaction temperature can be reduced by 200°C for nanosized reactants compared with coarse ones. In order to increase tetragonality of nanosized BaTiO3, an innovative two-step calcination method, which includes solid ...