Preparation and characterization of Sr Substituted BaBi2Nb2O9 Ceramics

Pradhan, Prashanta Kumar (2013) Preparation and characterization of Sr Substituted BaBi2Nb2O9 Ceramics. BTech thesis.



BaBi2Nb2O9, SrBi2Nb2O9 and there solid solution composition powder were synthesized by solid state reaction route. The 2 layer BLSF compounds and solid solution phases were developed at a calcination temperature of 9000c. The powders were uniaxially pressed into pallets and were sintered at a sintering temperature of 11000c. The densed ceramic shows an anisotropic grain structure which was investigated using scanning electron microscope. BLSF phase formation was confined by XRD analysis. Dielectric and ferroelectric properties measurement, silver electrode were applied on both surfaces of the pallets. Electrical properties were measured using Hioki LCR meter. The ferroelectric polarization of the materials was measured in a loop tracer. The dielectric and ferroelectric properties of solid solution compositions were better than individual pure composition.

Item Type:Thesis (BTech)
Uncontrolled Keywords:ferroelectric properties;permitivity;dielectric properties;polarization
Subjects:Engineering and Technology > Ceramic Engnieering > Ceramic Materials
Divisions: Engineering and Technology > Department of Ceramic Engineering
ID Code:5384
Deposited By:Hemanta Biswal
Deposited On:19 Dec 2013 09:35
Last Modified:20 Dec 2013 15:21
Supervisor(s):Bera , J

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