Abstract
According to the optimal technological regulations, the solid solutions of two four-component systems based on lead titanate-zirconate and alkali metal niobates were prepared: (1-x) Na0.875Li0.125NbO3 – xPbTi0.5Zr0.5O3 (0.05 ≤x < 0.95, Δx = 0.025-0.10) and (1-x) Na0.875K0.125NbO3 – xPbTi0.5Zr0.5O3 (0.0 ≤x ≤1.0, Δx = 0.05-0.10). The electrophysical parameters of the solid solutions of these systems were determined and the degree of their ferrohardness and efficiency was assessed according to the main characteristics: the relative permittivity of the polarized samples, ε33T/ε0, the mechanical quality factor, Q M, the coefficient of electromechanical coupling of the radial vibration mode, Kp, the piezomodule, |d 31|. It was shown that, depending on the chemical composition and the position of the solid solutions on the phase diagram of the systems, they can be characterized by different degrees of the ferrohardness and efficiency, which made it possible to select promising compositions: ferrohard ones – for the converters with high specific power (in step-down piezotransformers, piezoelectric motors, etc.) ); of the medium ferrohardness – for highly sensitive receivers of the ultrasonic vibrations (telemetry sensors, automatic control systems, etc.); ferrosoft materials with high efficiency – in the low-frequency devices (microphones, hydrophones, deflectors of the optical systems, robotics devices, etc.).
Published Version
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.
