Studies on electrical and dielectric properties of co-precipitated Aurivillius phase Ca1−Ba Bi2Nb2O9 ceramics
Source abstract
Abstract
Abstract Polycrystalline samples of lead free Ca1−xBaxBi2Nb2O9 ceramics has been synthesized by simple chemical co-precipitation method. Single phase layered perovskite structure was confirmed by X-ray diffraction with average crystallite size in the range of 46–57 nm. Randomly oriented grains with inhomogeneous morphology was observed by scanning electron microscopy. Study of dielectric constant and corresponding tangent loss was carried out in the frequency range of 1 Hz to 5 MHz at room temperature. Ca1−xBaxBi2Nb2O9 shows maximum value of dielectric constant of 535 at 1 Hz. The highest polarization of 0.026 μC/cm2 was obtained at an applied electric field of 10 kV/cm using PE loop measurement.
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Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Dielectric properties of ceramics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
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