YOU Jinfa, GAO Qian, CHEN Xiaohu
(College of Material Science and Engineering, Huaqiao University, Xiamen, Fujian 361021)
Abstract: The BaTi2O5 was synthesized from BaCO3 and TiO2 by mechanical activation. The powders were milled using steel balls in steel container for 3 hours for activation and then calcined at 1200℃ to obtain BaTi2O5. The sintered BaTi2O5 body has the anisotropic growth of the rod-like structure. The maximum permittivity of the sintered BaTi2O5 body was 232 at the Curie temperature of 350℃ and the frequency of 100kHz.
Key words: barium dititanate; mechanical activation; dielectric properties; Curie temperature