Dielectric and Piezoelectric Properties of Praseodymium Modified Lead Zirconate Titanate Ceramics

Abstract:

Praseodymium (Pr) modified lead zirconate titanate ceramics (Pb1-1.5xPrx (ZryTi1-y) O3 with x = 0.02, 0.04, 0.06, 0.08 and y = 0.51, 0.52, 0.54, 0.56, 0.58, 0.60) were prepared by the high temperature solid-state reaction method. X-ray diffraction (XRD) results show that the morphotropic phase boundary (MPB) of Pb0.955Pr0.03(ZryTi1-y)O3 (PPZT1) is located in the area where the molar fraction of Zr is near 55%, when the molar fraction of Zr is 54% and the sintering temperature is 1240°C with 1h curing time, the superior piezoelectric properties of compositions of PPZT1 system were optimized, a set of d33 = 420 pC/N; eT 33/e0 = 2,000; Tc = 314°C; Qm = 76; tand = 2% and kp = 0.53. On the other hand, Pb1-1.5xPrx(Zr0.54Ti0.46)O3 (PPZT2) is far from MPB and their compositions are all in tetragonal phase.

• Periodical: Key Engineering Materials (Volumes 280-283)
• Pages: 211-214
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.280-283.211
• Online since: February 2007
• Authors: Hua Zhou, Qingchi Sun, Cuimin Lu
• Keywords: MPB, Piezoelectric Properties, Pr-Doping, X-Ray Diffraction (XRD)

References

[1] T.Y. Jiang, T.Y. Ng and K.Y. Lam: Sensors and Actuators A Vol. 84 (2000), p.81.

[2] C. Lei, K. -P. Chen and X. -W. Zhang: Mater. Lett. Vol. 54 (2002), p.8.

[3] P. Muralt, A. Kholkin, M. Kohli and T. Maeder. Sensors and Actuators A Vol. 53 (1996), p.398.

[4] M.R. Soares, A.M.R. Senos and P.Q. Mantas: J. Eur. Ceram. Soc. Vol. 19 (1999), p.1865.

[5] N. Duan, D.Z. Sun, X.L. Dong, S.W. Lin and Y.L. Wang: J. Eur. Ceram. Soc. Vol. 19 (1999), p.1207.

[6] M.R. Soares and A.M.R. Senos: J. Eur. Ceram. Soc. Vol. 20 (2000), p.321.

[7] G.H.L. Wong, B.W. Chua, L. Li and M.O. Lai: J. Mater. Proce. Technol. Vol. 113 (2001), p.450.

[8] A. Boutarfaia, C. Boudaren, A. Mousser and S. E. Bouaoud: Ceram. Inter. Vol. 21 (1995), p.391.

[9] J. Ray, P. Hing and R.N.P. Choudhary: Mater. Lett. Vol. 51 (2001), p.434.

[10] J.W. Long and H.Y. Chen: Mater. Sci. Eng. B Vol. 99 (2003), p.445.