Lead free (1-x)(0.675BiFeO3-0.325BaTiO3)- xLiTaO3 (BFBTLT, x = 0, 0.01, 0.02, and 0.03, with 0.6 mol% MnO2 and 0.4 mol% CuO) were prepared by a solid state reaction method, followed by air quenching and their crystalline phase, morphology, dielectric, ferroelectric and piezoelectric properties were explored. An X-ray diffraction study indicates that lithium (Li) and tantalum (Ta) were fully incorporated in the BFBT materials with the absence of any secondary phases. Dense ceramic samples (> 92 %) with a wide range of grain sizes from 3.70 μm to 1.82 μm were obtained in the selected compositions (0 ≤ x ≤ 0.03) of BFBTLT system. The maximum temperatures (Tmax) were mostly higher than 420 oC in the studied composition range. The maximum values of maximum polarization (Pmax ≈ 31.01 μC/cm2), remnant polarization (Prem ≈ 22.82 μC/cm2) and static piezoelectric constant (d33 ≈ 145 pC/N) were obtained at BFBT-0.01LT composition with 0.6 mol% MnO2 and 0.4 mol% CuO. This study demonstrates that the high Tmax and d33 for BFBTLT ceramics are favorable for industrial applications.

Abstract
 1. Introduction
 2. Experimental Method
 3. Results and Discussion
 4. Conclusion
 References

• Fazli Akram(School of Materials Science and Engineering, Changwon National University)
• Rizwan Ahmed Malik(School of Materials Science and Engineering, Changwon National University, Department of Metallurgy and Materials Engineering, UET Taxila)
• Soonil Lee(School of Materials Science and Engineering, Changwon National University)
• Riffat Asim Pasha(Department of Metallurgy and Materials Engineering, UET Taxila)
• Myong Ho Kim(School of Materials Science and Engineering, Changwon National University) Corresponding author