Structural and dielectric relaxation behaviour of Ba0.8Sr0.2Zr0.1Ti0.9O3 ceramic

International Conference on Advances in Materials and Manufacturing Applications 2016

Mondal, Tanusree^1 ; Majee, Bishnu Pada^1 ; Middya, Tapas Ranjan^2 ; Sarun, P.M.^1

Functional Ceramics Laboratory, Department of Applied Physics, Indian School of Mines, Dhanbad

826004, India^1

Department of Physics, Jadavpur University, Kolkata

700 032, India^2

关键词: Complex impedance analysis;    Dielectric parameters;    Dielectric studies;    Electrode effects;    Field emission scanning electron microscopy;    Increasing temperatures;    Lower temperatures;    Solid-state reaction techniques;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012168/pdf
DOI  :  10.1088/1757-899X/149/1/012168

来源: IOP

【 摘 要 】

Ba0.8Sr0.2Zr0.1Ti0.9O3(BSZT) ceramic was prepared by conventional solid state reaction technique. The XRD pattern confirms single phase formation with cubic structure. The surface morphology was analysed by field emission scanning electron microscopy (FE-SEM). Detailed investigation of dielectric and electrical properties of the BSZT ceramic was done in the wide temperature (453K - 573K) and frequency range (40Hz - 5MHz). Dielectric studies of the compound revealed that dielectric parameters were strongly dependent on temperature and frequency. The complex impedance analysis confirms that the conduction of BSZT ceramic was mainly due to the grain in the lower temperature and with increasing temperature electrode effect was becoming prominent. The conductivity of the material was found to obey the power law.