‡Ferroelectric Ceramics Group, Physics Department, Federal University of São Carlos, São Carlos-SP, 13565905, Brazil.
Tailoring of the Lead Metaniobate Ceramic Processing
Article first published online: 15 MAY 2006
Journal of the American Ceramic Society
Volume 89, Issue 8, pages 2399–2404, August 2006
How to Cite
Venet, M., Vendramini, A., Garcia, D., Eiras, J. A. and Guerrero, F. (2006), Tailoring of the Lead Metaniobate Ceramic Processing. Journal of the American Ceramic Society, 89: 2399–2404. doi: 10.1111/j.1551-2916.2006.01082.x
J. Nino—contributing editor
This work was supported by the CNPq and Fapesp Brazilian agencies.
- Issue published online: 13 JUN 2006
- Article first published online: 15 MAY 2006
- Manuscript No. 21085. Received October 18, 2005; approved March 1, 2006.
The processing of a PbNb2O6 (PN) ceramic was investigated and optimized. Through thermal gravimetric and X-ray diffraction analysis the optimal calcination condition and the starting firing temperature were estimated. The powders were submitted to thermal treatments to obtain PN ceramic powders with an orthorhombic ferroelectric phase. The effect of PbO excess addition to compensate the PbO losses, during the calcination and the firing, was also studied. The highest density value was found to be 96% of the theoretical density. The temperature dependence of the dielectric properties, for samples sintered at different temperatures, allowed the study of the sintering kinetic.