Electromechanical Properties of Lead Titanate Zirconate Ceramics with Lead Partially Replaced by Calcium or Strontium
- 1 January 1959
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 42 (1) , 49-51
- https://doi.org/10.1111/j.1151-2916.1959.tb09141.x
Abstract
By partially substituting Sr for Pb in ceramic lead titanate zirconate compositions near the morpho‐tropic boundary, dielectric constants greater than 1300 can be obtained along with planar couplings of about 0.50. Calcium also raises the dielectric constant, but the planar coupling level is considerably lower than that obtained with Sr. Other effects noted with Sr are a lowering of the Curie temperature, a shift in the morphotropic boundary toward the rhombohedral side, and a decrease in the distortion from cubic symmetry. In addition, Sr was found to be effective as a fluxing agent.Keywords
This publication has 2 references indexed in Scilit:
- A Microstructure Study of Barium Titanate CeramicsJournal of the American Ceramic Society, 1956
- Properties of piezoelectric ceramics in the solid-solution series lead titanate-lead zirconate-lead oxide: Tin oxide and lead titanate-lead hafnateJournal of Research of the National Bureau of Standards, 1955