E. M. Sabolsky—contributing editor
Processing and Electrical Properties in Lead-Based (Pb(Mg1/3Nb2/3)O3, Pb(Yb1/2Nb1/2)O3, PbTiO3) Systems
Article first published online: 29 OCT 2009
© 2009 The American Ceramic Society
Journal of the American Ceramic Society
Volume 93, Issue 1, pages 28–31, January 2010
How to Cite
Akça, E., Yilmaz, H. and Duran, C. (2010), Processing and Electrical Properties in Lead-Based (Pb(Mg1/3Nb2/3)O3, Pb(Yb1/2Nb1/2)O3, PbTiO3) Systems. Journal of the American Ceramic Society, 93: 28–31. doi: 10.1111/j.1551-2916.2009.03357.x
This work was financially supported by the Scientific and Technical Research Council of Turkey (TUBITAK, Project 107M333).
- Issue published online: 21 DEC 2009
- Article first published online: 29 OCT 2009
- Manuscript No. 26537. Received July 14, 2009; approved August 14, 2009.
Lead-based ferroelectric (FE) ceramics exhibit superior electromechanical properties; therefore, there has been an increased focus on developing new lead-based FE materials with high Curie temperature (Tc) and enhanced properties. The aim of this study was to investigate new compositions in the Pb(Mg1/3Nb2/3)O3–Pb(Yb1/2Nb1/2)O3–PbTiO3(PMN–PYbN–PT) system to enhance the electromechanical properties while increasing the Tc and lowering the sintering temperature. The 0.575[0.5PMN–0.5PYbN]–0.425PT composition at PMN/PYbN (50/50) mole ratio were prepared by reactive sintering PMNT and PYbNT powder mixtures at 950°–1200°C for 4 h. PMNT and PYbNT powders were calcined via the columbite method. Samples were prepared by cold isostatic pressing at 80 MPa. Dense and fully perovskite 0.575[0.5PMN–0.5PYbN]–0.425PT ceramics were fabricated at 975°C for 4 h, and these samples displayed a remnant polarization (Pr) of 32 μC/cm2, coercive field (Ec) of 17 kV/cm, and a piezoelectric charge coefficient (d33) of 475 pC/N. It is proposed that this ternary system can be tailored for various applications.