Electrical Properties of High Curie Point Pb0.6Bi0.4 (Ti0.75Zn0.15Fe0.10)O3 Ceramics
Abstract:Perovskite-structured Pb0.6Bi0.4(Ti0.75Zn0.15Fe0.1)O3 ceramic patches were prepared with conventional electronic ceramic processing on the basis of its near-zero thermal expansion coefficient, in contrast to most of PbTiO3-based solid solutions with decreasing tetragonality and Curie temperature. For the 1% Nb+0.5% Mg-doped samples sintered at 1050°C, enhanced tetragonality of c/a=1.100 and Curie temperature of Tc=705°C, dielectric constant of =204, dielectric loss of tan =1.7%, and piezoelectric constant of d33=2.0 pC/N were obtained.
Document Type: Research Article
Affiliations: Functional Materials Research Laboratory, Tongji University, Shanghai 200092, China
Publication date: 2010-06-01