Effects of Nd₂O₃ contents on dielectric characteristics of BaTiO₃ ceramics

BaTiO₃ ceramics doped with Nd₂O₃ (the additive content was respectively 0.001, 0.002, 0.003, 0.005, 0.01, 0.03mol) were prepared by Sol-Gel method. Effects of Nd₂O₃ contents on the dielectric constant (ε), the dielectric loss (tanδ), the Curie-temperature (T_c) and the resistivity (ρ) of BaTiO ₃ ceramic were studied. When Nd₂O₃ content was 0.001 mol and 0.002mol, the dielectric constant was increased obviously, but the dielectric loss was also increased. When Nd₂O₃ content was 0.003mol, the dielectric constant was increased, and the dielectric loss was decreased, which was suitable for application in condenser. The resistivity was decreased obviously with the increasing of Nd₂O₃ contents, the resistivity was the smallest when Nd₂O₃ content was 0.001mol. The Curie-temperature was also decreased with the increasing of Nd₂O₃ contents.