1. Lead-Free Piezoelectric Ceramics Based on (Bi1/2Na1/2)TiO3-NaNbO3;Takenaka,1997
2. Lead-Free Piezoelectric Ceramics of (Bi1/2Na1/2)TiO3-1/2(Bi2O3·Sc2O3) System;Nagata,1997
3. Additive Effects on Electrical Properties of (Bi1/2Na1/2)TiO3 Ferroelectric Ceramics;Nagata,2001
4. Current Status and Prospects of Lead-Free Piezoelectric Ceramics;Takenaka,2005
5. (Bi1/2Na1/2)TiO3-BaTiO3 System for Lead-Free Piezoelectric Ceramics;Takenaka,1991