| Synthesis and enhanced electromechanical properties of Bi(Mg0.5Zr0.5)O3‑modified BiFeO3–BaTiO3 piezoceramics by ordinary firing process |
| Meshal Alzaid1, Rizwan Ahmed Malik2, Adnan Maqbool3, Noha Almoisheer1, Tahani Alanazi1 |
1Physics Department, College of Science, Jouf University, Al‑Jouf, P.O. Box 2014, Sakaka, Saudi Arabia
2Department of Metallurgy and Materials Engineering, Faculty of Mechanical and Aeronautical Engineering, University of Engineering and Technology, Taxila 47050, Pakistan
3Metallurgical and Materials Engineering Department, University of Engineering and Technology, Lahore, Pakistan |
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Received: July 31, 2021; Revised: October 24, 2021 Accepted: November 4, 2021. Published online: January 31, 2022. |
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| ABSTRACT |
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The crystal structure and electromechanical properties of a novel lead-free (1–z) (0.67Bi1.05FeO3–0.33BaTiO3)–zBi(Mg0.5Zr0.5)O3 (BFBT–BMZ100z, with z = 0.00–0.10) ceramic were studied using a mixed oxide method. The addition of BMZ to the BF-BT host system had no significant influence on the crystal structure. The dielectric constant was reduced when BMZ was incorporated, and the dielectric curves became more dispersed. Forz = 0.060 composition, increased electric field-induced strain was attained with dynamic piezoelectric constant Smax/Emax = d*33 = 315 pm/V at 4 kV/mm. This sample (z = 0.060) also has a high Curie temperature of TC = 420 °C. The developed system's observed features suggest that it could be useful for high-temperature piezoelectric devices. |
| Key words:
Piezoelectricity · Lead-free · Field-induced strain · BiFeO3 ceramics |
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