• Sushil Kumar Pandey

Ferroelectric materials with Perovskite structure have widespread use in many electromechanical devices such as actuators, sensors, transducers and are candidates for memory devices and spintronics applications. Since a long time, the materials used for the fabrication of devices providing these applications contained lead such as Lead Titanate, Lead Magnesium Niobates and the most dominant one- Lead Zirconate Titanate (PZT). Despite the success in electrical devices there is a global concern for the development of environment–friendly lead-free materials considering the fatal effects which Pb causes to environment. A large body of work has been reported in the last 10 years on the development of lead-free piezoceramics. This review paper summarizes the properties and characteristics of one of the most studied lead free ceramic Bax(Na1/2Bi1/2)1-xTiO3 (BNBT) which has recently been the starting point for the development of many other lead free piezoelectric materials.

Perovskites, Ferroelectrics, Morphotropic Phase Boundary (MPB), Depolarization Temperature.

"BNBT: An Alternative to Lead Free Ceramics", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.1, Issue 4, page no.373-379, September 2014, Available :http://www.jetir.org/papers/JETIR1701896.pdf

"BNBT: An Alternative to Lead Free Ceramics", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.1, Issue 4, page no. pp373-379, September 2014, Available at : http://www.jetir.org/papers/JETIR1701896.pdf