Electrical and mechanical properties of BZT − x BCT lead‐free piezoceramics
Source abstract
Abstract
Abstract In this study, lead‐free (1 − x )Ba(Zr 0.2 Ti 0.8 )O 3 − x (Ba 0.7 Ca 0.3 )TiO 3 compositions are synthesized via conventional solid oxide route, and the ceramics are fabricated with normal sintering in air. The effects of composition fluctuations on dielectric, piezoelectric, and mechanical properties are investigated. The phase structure and the microstructure are analyzed with X‐ray diffraction and scanning electron microscopy. The best dielectric and piezoelectric properties of ε r = 11 207 and d 33 = 330 pC/N were obtained for BZT−0.35BCT and BZT−0.5BCT ceramics, respectively. The mechanical behavior—in terms of Vickers hardness and compressive and flexural strengths—was investigated, and the best mechanical behavior was found in the vicinity of the phase transition boundary with x values between 0.5 and 0.6.
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Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Acoustic Wave Resonator Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Materials Engineering Yasouj University Yasouj Iran
School of Dentistry Marquette University Milwaukee WI USA
Funding
Yasouj University
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