Synthesis and electric properties of (Na,Bi)Bi2Ta2O9 ceramics with bismuth layer-structure

Kazuya Komagata, Hiroaki Takeda, Soichiro Okamura, Tadashi Shiosaki

研究成果: Conference article


The synthesis of ferroelectric Na0.5-xBi2.5+x/3Ta2O9 (NBT) was performed using a conventional solid state reaction. X-ray diffractometry showed that an NBT single phase polycrystalline was obtained for x= 0 and 0.1. Dense NBT ceramics were prepared via ordinary firing (OF), and used for the characterization of the ferroelectric, dielectric and piezoelectric properties. The largest remanent polarization, 2Pr=36 μC·cm-2, was obtained at the stoichiometric composition of x=0. The electromechanical coupling factors for the OF specimens were more than twice those of the other bismuth layer-structure ferroelectric ceramics.

ジャーナルKey Engineering Materials
出版物ステータスPublished - 2 12 2002
イベントAsian Ceramic Science for Electronics II Proceedings of the 2nd Asian Meeting of Electroceramics - Kawasaki, Japan
継続期間: 1 10 20011 10 2001