Abstract
ABSTRACTIn this work the temperature dependent X-ray diffraction and dielectric properties of perovskite (Ba0.76Ca0.24)(Zr0.04Ti0.96)O3 ceramic were investigated. X-ray diffraction studies indicated the unit cell structure to be tetragonal (space group: P4/mmm) upto 800°C and thereafter it becomes orthorhombic (space group: Pmmm). The chemical composition was determined using energy dispersive X-ray. Dielectric studies exhibited two dielectric relaxations at 20°C and a high temperature phase transition at 855°C with the permittivity value of 1.65×105 at 1 kHz which places the present ceramic system in the list of potential candidate for intended high temperature applications. The result shows that capacitor has a resonance frequency higher than 0.44 MHz at 820°C which shifts towards 3.4 kHz at 1100°C depending on the value of its capacitance. The measured value of d33 was found to be 197 pC/N. The field dependent polarization and strain studies at room temperature indicated that (Ba0.76Ca0.24)(Zr0.04Ti0.96)O3 is a promising lead-free electrostrictive material for industrial applications.
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.
