Lanthanum Dependence of Elastic and Piezoelectric Properties of PLZT Ceramics with a Zr/Ti Ratio of 65/35
Authors:
- 1 October 1972
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 55 (10) , 504-506
Abstract
The elastic and piezoelectric properties of PLZT ceramics with a 65/35 Zr/Ti ratio undergo pronounced changes as La is added to the structure. At the rhombohedral‐tetragonal phase boundary, material constants plotted as functions of La concentration show strong discontinuities in slope; these discontinuities provide a precise means of locating the boundary. The radial‐mode coupling factor, k p , compliance coefficient, S 11 E , and piezoelectric coefficient, d 31 , attain peak values at the boundary, whereas Poisson's ratio, σ E , and the resonance‐frequency constant exhibit pronounced minima. This behavior is evidence of the increasing ferroelastic sensitivity of the material as the distortion angle of the rhombohedral phase approaches a minimum.Keywords
This publication has 8 references indexed in Scilit:
- Acoustic Detection of Ferroelectric Phase Transitions in PLZT CeramicsJournal of the American Ceramic Society, 1972
- Ferroelastic Behavior of PLZT Ceramics When Subjected to Large Tensile StrainsApplied Physics Letters, 1971
- Strain-biased ferroelectric-photoconductor image storage and display devicesProceedings of the IEEE, 1971
- Hot‐Pressed (Pb,La)(Zr,Ti)O 3 Ferroelectric Ceramics for Electrooptic ApplicationsJournal of the American Ceramic Society, 1971
- Ferroelectric ceramic light gates operated in a voltage-controlled modeIEEE Transactions on Electron Devices, 1970
- Ferroelectric electrooptic ceramics with reduced scatteringIEEE Transactions on Electron Devices, 1969
- Ferroelectric ceramic electrooptic materials and devicesProceedings of the IEEE, 1969
- Electrostrictive Effect in Barium Titanate CeramicsPhysical Review B, 1948