Perovskite structure development in (Ba)Ti-substituted Pb(Zn1/2W1/2)O-3 and dielectric properties

摘要

Simultaneous substitution of Ba and/or Ti into Pb(Zn1/2W1/2)O-3 was attempted in order to investigate the development of a perovskite structure. Precursor powders of the B-site components were separately prepared and post-reacted with the remaining components to assist the perovskite formation. The low formation yields of perovskite at pb(Zn1/2W1/2)O-3-rich compositions increased continuously with increasing substituent levels. Dielectric constant and loss values of the sintered ceramics were measured, followed by microstructure examination.