Comparative studies of Cerium and Zirconium doped Barium Titanate
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چکیده
Comparative studies of Cerium and Zirconium doped Barium Titanate S.N. Rahman, N. Khatun, S. Islam, N.A. Ahmed Industrial Physics Division, BCSIR Laboratories, Dhaka. Bangladesh Council of Scientific and Industrial Research (BCSIR) Dr. Kudrat-i-Khuda Road, Dhaka-1205, BANGLADESH. __________________________________________________________________________________________ Abstract: Comparative investigations of microstructure and dielectric properties of BaTiO3 ceramics doped with different concentration of CeO2 and ZrO2 have been studied. BaTiO3 samples were prepared using conventional method of solid state sintering at 1250C for four hours. Distinct microstructure was observed with pure and doped BaTiO3. The highest value of dielectric permittivity and the lowest value of loss tangent was found for CeO2 with x=0.1 mole percent. In all investigated samples dielectric constant assumes initially large value at low frequencies (75KHz)and attains constant value at frequency 1MHz.
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