Influence of calcium on the ferroelectricity of modified lead titanate ceramics
- 1 June 1989
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 94 (1), 183-188
- https://doi.org/10.1080/00150198908014251
Abstract
Lead titanate ceramics modified with 24, 30, 35 and 40 mole% of calcium have been obtained. The thermal behaviour of permittivity as well as that of pyroelectric coefficient present a larger broadening the larger the Ca content, which could be adscribed to an increasing disorder on the Ca and Pb arrangement. On the other hand the diminishing of tetragonality with increasing Ca amount causes the decrease of coercive field, which favors the 90° domain reorientation; the moderate strains produced on poling could justify the minimum poling reversal effects on piezoelectricity.Keywords
This publication has 4 references indexed in Scilit:
- Electrical Properties and Microstructure of Ca Modified PbTiO3 CeramicsJapanese Journal of Applied Physics, 1987
- Electromechanical properties of (Pb, Ln) (Ti, Mn) O3 ceramics (Ln = rare earths)The Journal of the Acoustical Society of America, 1982
- Ion Temperature Measurements of Turbulently Heated Tokamak Plasma by Doppler-Broadening of Visible Lines in TRIAM-1Japanese Journal of Applied Physics, 1981
- IRE Standards on Piezoelectric Crystals: Measurements of Piezoelectric Ceramics, 1961Proceedings of the IRE, 1961