The Effect of V2O5 Addition on Ferroelectric Properties of Sr0.3Ba0.7Nb2O6 Ceramics
Open Access
- 1 January 1995
- journal article
- Published by Ceramic Society of Japan in Journal of the Ceramic Society of Japan
- Vol. 103 (1204) , 1246-1250
- https://doi.org/10.2109/jcersj.103.1246
Abstract
Sr0.3Ba0.7Nb2O6(SBN30) compacts with 1mol% V2O5 addition were fabricated at relatively lower temperatures by liquid phase sintering. A considerable elongation and coarsening of grains were observed after prolonged sintering at 1200°C. The ferroelectric properties were improved by the addition of V2O5: sharpening of the dielectric peak and shift in Curie temperature from 175 to 225°C. The modified ferroelectric properties might be attributed to decrease in the internal stress and compositional fluctuation with coarsening of grains. The pyroelectric coefficient of V2O5-added compacts (1200°C, 14h) at room temperature was 8.0×10-5C/m2·K.Keywords
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