Abstract
The processing conditions, microstructure and dielectric properties of strontium bismuth titanate (SBT) were studied by means of Ca substitution in the strontium site referred to hereinafter as SCBT. The mechano-chemical activation method permits one to reduce the particle size of the initial products, so the surface area of the powder is increased, improving in most cases its reactivity. X-ray diffraction analysis showed the formation of a single-phase layered perovskite structure of SCBT. Morphological studies were carried out by SEM analysis. Dielectric measurements in the frequency 100 Hz–1 MHz were made using an Impedance Analyzer (HP4192A) interfaced to a computer and the measurements were carried out from room temperature to 600°C. a variation in the dielectric constant was observed by the incorporation of calcium into the layered perovskite structure. The hysteresis loop revealed a variation in remnant polarization with the substitution of calcium in strontium. Resonance studies were made on poled sample using an Impedance Analyzer. Elastic compliance [s33, s11] and coupling factor [k33, k31] were also obtained.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
