... Blacksburg, VA 24061, USAe-mail: wenweige@vt.edu; viehland@mse.vt.eduS. Priya and S. Nahm (eds.), Lead-Free Piezoelectrics, DOI 10.1007/978-1-4419-9598-8_1,#Springer Science+Business Media, LLC 2012394% ... K0.5Na0.5NbO3-based, and BaTiO3-based materials will be discussed.20 W. Ge et al. Lead-Free Piezoelectrics 1.2.2 Na0.5Bi0.5TiO3-Based Solid SolutionsSodium bismuth titanate (Na0.5Bi0.5TiO3or ... remnant polarizationof Pr¼ 38 mC/cm2, and coercive field of Ec¼ 73 kV/cm [53]. It is a potential lead-free piezoelectric, as solid solutions with other pervoskites such asNa0.5Bi0.5TiO3-x%BaTiO3or...