Title of article
Piezoelectric and dielectric properties of Ce substituted La2Ti2O7 ceramics
Author/Authors
Gao، نويسنده , , Z.P. and Yan، نويسنده , , H.X. and Ning، نويسنده , , H.P. and Wilson، نويسنده , , R. and Wei، نويسنده , , X.Y. and Shi، نويسنده , , B. and Ye، نويسنده , , H. and Reece، نويسنده , , M.J.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
8
From page
1001
To page
1008
Abstract
The ferroelectric and dielectric properties of cerium (Ce) substituted La2Ti2O7 (LTO) have been investigated. Single phase, dense La2−xCexTi2O7 (x = 0.15, 0.25, 0.35) ceramics were prepared by spark plasma sintering. The solubility limit of Ce in La2−xCexTi2O7 was found to be between 0.35 and 0.5. The a-, b- and c-axes of the unit cell decrease with increasing Ce substitution. The Curie point (Tc) of La2−xCexTi2O7 (x = 0, 0.15, 0.25, 0.35) decreases and dielectric constant and loss increase with increasing Ce substitution. Cerium can increase the d33 of La2Ti2O7. The highest d33 was 3.9 ± 0.1 pC/N for La1.85Ce0.15Ti2O7 textured ceramic.
Keywords
Curie point , SPS , Ferroelectric , PLS ceramic
Journal title
Journal of the European Ceramic Society
Serial Year
2013
Journal title
Journal of the European Ceramic Society
Record number
1415077
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