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Effect of Ceramic Processing Methods on Photostrictive Ceramics

Effect of Ceramic Processing Methods on Photostrictive Ceramics Lanthanum-modified lead zirconate titanate (PLZT) ceramics (3/52/48) doped with 0.5 at.% WO3 were prepared by three different processing methods, coprecipitation, sol-gel and conventional oxide mixing techniques, to investigate the effect of processing route on photovoltaic and photostrictive properties. The piezoelectric constant (d33) was observed to be independent of processing technique. Photovoltaic and photo-induced strain were found to get enhanced with decreasing grain size and increasing relative density. PLZT ceramics prepared by the coprecipitation route possess unique combination of favorable properties namely: high purity, higher degree of homogeneity, uniform distribution of doping, stoichiometric compositions, finer grain size and highest density. This resulted into enhanced photostrictive properties in coprecipitated PLZT ceramics. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Performance Materials Springer Journals

Effect of Ceramic Processing Methods on Photostrictive Ceramics

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References (4)

Publisher
Springer Journals
Copyright
Copyright © 1999 by Kluwer Academic Publishers
Subject
Engineering; Automotive Engineering; Characterization and Evaluation of Materials; Classical Mechanics; Metallic Materials
ISSN
0929-1881
eISSN
1572-8765
DOI
10.1023/A:1008726029112
Publisher site
See Article on Publisher Site

Abstract

Lanthanum-modified lead zirconate titanate (PLZT) ceramics (3/52/48) doped with 0.5 at.% WO3 were prepared by three different processing methods, coprecipitation, sol-gel and conventional oxide mixing techniques, to investigate the effect of processing route on photovoltaic and photostrictive properties. The piezoelectric constant (d33) was observed to be independent of processing technique. Photovoltaic and photo-induced strain were found to get enhanced with decreasing grain size and increasing relative density. PLZT ceramics prepared by the coprecipitation route possess unique combination of favorable properties namely: high purity, higher degree of homogeneity, uniform distribution of doping, stoichiometric compositions, finer grain size and highest density. This resulted into enhanced photostrictive properties in coprecipitated PLZT ceramics.

Journal

Advanced Performance MaterialsSpringer Journals

Published: Oct 1, 2004

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