Bi0.5Na0.5TiO3 (BNT) based ceramics are considered potential lead-free alternatives for Pb(Zr,Ti)O3(PZT) based ceramics in various applications such as sensors, actuators and transducers. However, BNT-based ceramics have lower electromechanical performance as compared with PZT based ceramics. Therefore, in this work, lead-free bulk 0.99[(Bi0.5Na0.5)0.935Ba0.065](1-x)LaxTiO3-0.01SrZO3 (BNBTLax-SZ, with x = 0, 0.01, 0.02) ceramics were synthesized by a conventional solid state reaction The crystal structure, dielectric response, degree of diffuseness and electric-field-induced strain properties were investigated as a function of different La concentrations. All samples were crystallized into a single phase perovskite structure. The temperature dependent dielectric response of La-modified BNBT-SZ ceramics showed lower dielectric response and improved field-induced strain response. The field induced strain increased from 0.17% for pure BNBT-SZ to 0.38 % for 1 mol.% La-modified BNBT-SZ ceramics at an applied electric field of 6 kV/mm. These results show that Lamodified BNBT-SZ ceramic system is expected to be a new candidate material for lead-free electronic devices.

1. Introduction
 2. Experimental
 3. Results and Discussion
 4. Conclusions
 Acknowledgements
 References

• Ali Hussain(School of Advanced Material Engineering, Changwon National University, Gyeongnam 641-773, Korea)
• Adnan Maqbool(School of Advanced Material Engineering, Changwon National University, Gyeongnam 641-773, Korea)
• Rizwan Ahmed Malik(School of Advanced Material Engineering, Changwon National University, Gyeongnam 641-773, Korea)
• Arif Zaman(School of Advanced Material Engineering, Changwon National University, Gyeongnam 641-773, Korea, Department of Physics, Abdul Wali Khan University, Mardan, KPK, Pakistan)
• Jae Hong Lee(School of Advanced Material Engineering, Changwon National University, Gyeongnam 641-773, Korea)
• Tae Kwon Song(School of Advanced Material Engineering, Changwon National University, Gyeongnam 641-773, Korea)
• Jae Hyun Lee(School of Advanced Material Engineering, Changwon National University, Gyeongnam 641-773, Korea)
• Won Jeong Kim(Department of Physics, Changwon National University, Gyeongnam 641-773, Kore)
• Myong Ho Kim(School of Advanced Material Engineering, Changwon National University, Gyeongnam 641-773, Korea) Corresponding author