The Structure and the Electrical Properties of Pb0.95La0.05[ZrxTi(0.95–x)(Mo1/3,In2/3)0.05]0.9875O3 Ferroelectric Ceramics
Malika Abba, Ahmed Boutarfaia
DOI: 10.4236/msa.2011.29162   PDF    HTML     4,152 Downloads   7,834 Views   Citations


The structural, the dielectric, and the piezoelectric properties of new ferroelectric Pb0.95La0.05[ZrxTi(0.95–x)(Mo1/3,In2/3)0.05]0.9875O3(0.46 ≤ x ≤ 0.55) ceramics have been investigated. All the samples were being sintered at a temperature ranging from 1000 to 1180℃ after being compacted in circular discs. The detailed structural and ferroelectric properties were carried out for sintered specimens. The results of X-ray diffraction showed that all the ceramics specimens have a perovskite phase. The phase structure of Pb0.95La0.05[ZrxTi(0.95–x)(Mo1/3,In2/3)0.05]0.9875O3 ceramics was transformed from the tetragonal to the rhombohedral, with an increase in the ratio of Zr/Ti in system. In the present system the MPB that coexists with the tetragonal and rhombohedral phases is a narrow composition region of x = 0.50 – 0.51. The scanning Electron Microscopy (SEM) showed an increase of the mean grain size when the sintering temperature was increased. The dielectric constant ε and the coupling factor Kp reached the maximum values, while the mechanical quality factor Qm and the loss tangent reached the lowest values when x = 0.50. For the composition where x = 0.50, these properties include ε = 5414 (at the Curie temperature), tangδ = 0.039, Kp = 0.67, Qm = 20 and a Curie temperature of 335℃.

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M. Abba and A. Boutarfaia, "The Structure and the Electrical Properties of Pb0.95La0.05[ZrxTi(0.95–x)(Mo1/3,In2/3)0.05]0.9875O3 Ferroelectric Ceramics," Materials Sciences and Applications, Vol. 2 No. 9, 2011, pp. 1199-1204. doi: 10.4236/msa.2011.29162.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] B. Jaffe, W.R. Cook and H. Jaffe, “Piezoelectric Ceramics,” Academic Press, New York, 1971.
[2] S. Pilgrim, M. Audrey, E. Sutherland and E. R. Winzer, “Dif-fuseness as a Useful Parameter for Relaxor Ceramics,” Journal of American Ceramic Society, Vol. 73, No. 10, 1990, pp. 3122-3125. doi:10.1111/j.1151-2916.1990.tb06733.x
[3] S. Miga and K. Wojcik, “Investigation of the Diffuse Phase Transition in PLZT X/65/35 Ceramics, X = 7 - 10,” Ferroelec-trics, Vol. 100, No. 1, 1989, pp. 167-173.
[4] K. L. Yadav, R. N. P. Choudhary and T. K. Chaki, “Structural, SEM and Dielectric Properties of PLZT,” Journal of Materials Science, Vol. 27, No. 19, 1992, pp. 5244-5246. doi:10.1007/BF02403823
[5] G. H. Heartling, “Piezoelectric and Electrooptic Ceramics,” In: R. C. Buchanan, Ed., Ceramics Materials for Electronics, Marcel Dekker, New York, 1991, pp. 139- 225.
[6] H. Y. Chen, X. B. Guo and Z. Y. Meng, “Processing and Prop-erties of PMMN-PZT Quaternary Piezoelectric Ceramics for Ultrasonic Motors,” Journal of Materials Chemistry and Physics, Vol. 75, No. 1-3, April 2002, pp. 202-206.
[7] P. Ari-Gur and L. Benguigui, “X-ray Study of the PZT Solid Solutions near the Morphotropic Phase Transition,” Solid State Communication, Vol. 15, No. 6, 1974, pp. 1077-1079. doi:10.1016/0038-1098(74)90535-3
[8] W. Cao and L. E. Cross, “The Ratio of Rhombohedral and Te-tragonal Phases on the Morphotropic Phase Boundary in Lead Zirconate Titanate,” Journal of Applied Physics, Vol. 31, 1992, pp. 1399-1402. doi:10.1143/JJAP.31.1399
[9] K. Kakegawa, J. Mohri, X. Shrasaki and K. Takahaashi, “Slug-gish Pansition Between Tetragonal and Rhombohedral Phases of Pb(Zr,Ti)O3,” Journal of the American Ceramic Society, Vol. 65, October 1982, pp. 515-519. doi:10.1111/j.1151-2916.1982.tb10344.x
[10] A. V. Turik, M. F. Kupriyanov, E. N. Sidorenko and S. M. Zaitsev, “Behavior of Piezoceramics of type Pb(Zr,Ti)O3, near the region of the morphotropic transition,” Soviet Phys-ics-Technical Physics, Vol. 25, No. 10, 1980, pp. 1251-1254.
[11] K. Kakegawa and J. Mohri, “A compositional Fluctuation and Proporties of Pb(Zr,Ti)O3,” Solid State Communications, Vol. 24, December 1997, pp.769-772.
[12] S. A. Mabud, “The Morphotropic Phase Boundary in PZT Solid Solution,” Journal of Applied Crystallographic, Vol. 13, 1980, pp. 211-216.
[13] IEEE Standard on Piezoelectricity, IEEE Standard 176- 1978, Institute of Electrical and Electronic Engineers, New York, 1978.
[14] S. Kaneko, D. Z. Dong and K. Murakami, “Effect of Simulta-neous Addition of BiFeO3 and Ba(Cu0,5W0,5)O3 on Lowering of Sintering Temperature of Pb(Zr,Ti)O3 Ceramics,” Journal of the American Ceramic Society, Vol. 81, April 1998, pp. 1013-1018.
[15] B. D. Cullity, “Elements of X-Ray Diffraction,” Addison- Wesley Publishing Company, Inc., 1978, p. 32.
[16] A. Boutarfaia, “Investigation of Co-existence Region in Lead Zirconate Titanate Solid Solutions: X-Ray Diffraction Studies,” Ceramics International, Vol. 26, No. 6, 2000, pp. 583-587. doi:10.1016/S0272-8842(99)00099-1
[17] A. Boutarfaia, “Study of Solid State Reaction and the Mor-photropic Phase Boundary in Pb(Zr,Ti)O3-Pb(Fe1/5,Ni1/5,Sb3/5)O3 Ceramics,” Ceramics In-ternational, Vol. 27, No. 1, 2001, pp. 91-97. doi:10.1016/S0272-8842(00)00047-X
[18] M. E. Lines and A. M. Glass, “Principles Application of Fer-roelectric and Related Materials,” Oxford University Press, Oxford, 1977.

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