Improving ferroelectric properties of Pb(Zr0.44Ti0.56)O3 ceramics by Pb(Mg1/3Nb2/3)O3 addition

• Published in: Materials science & engineering. B, Solid-state materials for advanced technology Vol. 128; no. 1-3; pp. 83 - 88
• Main Authors: Wongsaenmai, Supattra, Laosiritaworn, Yongyut, Ananta, Supon, Yimnirun, Rattikorn
• Format: Journal Article
• Language: English
• Published: 01.03.2006
• ISSN: 0921-5107
• DOI: 10.1016/j.mseb.2005.11.014

Ceramics in PMN-PZT system with formula (x)Pb(Mg1/3Nb2/3)O3-(1-x)Pb(Zr0.44Ti0.56)O3 (when x=0.,0.,0.,0.,0.7) are prepared by a solid-state mixed-oxide technique. The phase formation behavior and microstructure are studied using X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The ferroelectric properties are measured by a simple Sawyer-Tower circuit. XRD analysis shows that the possible morphotropic phase boundary (MPB) between the tetragonal and pseudo-cubic phases is identified near the 0.3PMN-0.7PZT composition. In addition, ferroelectric properties of PMN-PZT ceramics are found to enhance at the ceramic composition with x=0.3. This clearly implies that the MPB of this PMN-PZT system lies near the x=0.3 composition. Most importantly, this study shows that the addition of PMN can improve the ferroelectric behavior in PZT ceramics.