Electrical And Mechanical Properties of BZT − xBCT Lead‐Free Piezoceramics

Authors

Raziye Hayati, Yasouj University
Mohammad Fayazi, Yasouj University
Hadi Diargar, Yasouj University
Mohammad Kaveh, Yasouj University
Lobat Tayebi, Marquette UniversityFollow

Document Type

Article

Publication Date

7-2020

Publisher

Wiley

Source Publication

International Journal of Applied Ceramic Technology

Source ISSN

1546-542x

Abstract

In this study, lead‐free (1 − x)Ba(Zr_0.2Ti_0.8)O3 − x(Ba_0.7Ca_0.3)TiO₃ 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 d₃₃ = 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.

Comments

Accepted version. International Journal of Applied Ceramic Technology, Vol. 17, No. 4 (July/August 2020): 1891-1898. DOI. © 2020 Wiley. Used with permission.

Recommended Citation

Hayati, Raziye; Fayazi, Mohammad; Diargar, Hadi; Kaveh, Mohammad; and Tayebi, Lobat, "Electrical And Mechanical Properties of BZT − xBCT Lead‐Free Piezoceramics" (2020). School of Dentistry Faculty Research and Publications. 440.
https://epublications.marquette.edu/dentistry_fac/440