A systematic study of the particle size dependence of the ferroelectric domain, internal stress and dielectric constant (K) of BaTiC>3 powders was performed using scanning electron microscopy, X-ray diffractometer and differential scanning calorimetry. The dielectric constant of BaTiC>3 powder was lower than that of the BaTi03 sintered body. Low values of the dielectric constant were observed for BaTiC>3 powder, which was ascribed to low domain density and constrained forces existing in the particles. As the particles became smaller due to the decrease in the constrained force powders of lower domain density are formed.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)