Synthesis of PZT (Pb(Zr0.52Ti0.48)O3) Powders
by Homogeneous Precipitation and Calcination

 E.E. Oren and A. Cuneyt Tas
Dept. of Metallurgical and Materials Engineering
Middle East Technical University
Ankara 06531, Turkey

* A. C. TAS, "Preparation of Pb(Zr0.52Ti0.48)O3 Powders by Homogeneous Precipitation and Calcination," Journal of The American Ceramic Society, 82, 1582-1584 (1999).           (-----> download PDF file: pzt.pdf)

* E. E. Oren and A. C. TAS, "Preparation of Pb(Zr0.52Ti0.48)O3 Powders by Homogeneous Precipitation and Calcination," in "Dielectric Ceramic Materials," Ceramic Transactions, Vol. 100, pp. 105-114, (Eds.) K.M. Nair and A.S. Bhalla, 1999, The American Ceramic Society, USA, ISBN 1-57498-066-1.

* E. E. Oren and A. C. TAS, "Preparation of Pb(Zr0.52Ti0.48)O3 Powders by Homogeneous Precipitation and Calcination," 100th Annual Meeting of the American Ceramic Society, May 3-6, 1998, Cincinnati, OH, USA, Oral Presentation.

* E. E. Oren and A. C. TAS, "Preparation of Pb(Zr0.52Ti0.48)O3 Powders by Homogeneous Precipitation and Calcination," accepted to
appear in a "Ceramic Transactions" volume to be published in 1998 (from the Proceedings of Symposium XII: International Symposium
on Dielectric Ceramics, 100th Meeting of American Ceramic Society, May 3-6, 1998, Cincinnati, OH, USA).

* E. E. Oren and A. C. TAS, "Preparation of Pb(Zr0.52Ti0.48)O3 by Homogeneous Precipitation and Calcination," IV. Ceramics Congress, Proceedings Book, pp. 619-626, September 22-25, 1998, Eskisehir, Turkey.
 
 

Preliminary Lab-Report

Aqueous solutions of lead chloride (PbCl2), zirconium oxychloride (ZrOCl2.8H2O) and titanium tetrachloride
     (TiCl4), in appropriate volumetric amounts, were used as the starting materials in the synthesis of phase-pure
     Pb(Zr0.52Ti0.48)O3 powders. Preparation of the phase-pure PZT powders were achieved, in the presence of
     urea (CH4N2O), by the chemical powder synthesis technique of homogeneous precipitation.

     Calcination and phase evolution behavior of PZT precursor powders were studied as a function of temperature by
     powder XRD (X-ray diffraction) in an air atmosphere, in the temperature range of 90 to 750C.
     Morphological properties of the synthesized Pb(Zr0.52Ti0.48)O3 powders were investigated by the SEM
     (scanning electron microscopy) studies. Qualitative chemical analysis of the samples were performed by EDXS
     (energy-dispersive X-ray spectroscopy).
 

XRD chart for the urea synthesis of PZT powders
 
 

Effect of Urea concentration on PZT synthesis conditions
 

pH change versus time (during synthesis)

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