Effect of Two-Stage Reaction Sintering Technique on Phase Formation, Microstructure and Dielectric Properties of 0.93Pb(Zn_1/3Nb_2/3)O₃–0.07BaTiO₃ Ceramics

Abstract

Influences of a combination between the two-stage sintering and the reaction sintering techniques on phase formation, microstructure and dielectric properties of relaxor perovskite 0.93Pb(Zn_1/3Nb_2/3)O₃–0.07BaTiO₃ or 0.93PZN-0.07BT ceramics were determined via X-ray diffraction, scanning electron microscopy and dielectric measurement techniques, respectively. Under suitable two-stage reaction sintering schemes, it was found that dense and pure perovskite 0.93PZN-0.07BT ceramics with fine grain size can be successfully achieved with better dielectric properties than those of ceramics from single-stage reaction sintering.

Keywords:

• Perovskite
• phase formation
• sintering
• densification
• dielectric properties

Acknowledgments

Supports from Synchrotron Light Research Institute (Public Organization), Graduate School and Faculty of Science, Chiang Mai University are gratefully acknowledged.