TY - JOUR
T1 - Piezoelectric and dielectric properties of Ce substituted La2Ti2O7 ceramics
AU - Gao, Z.P.
AU - Yan, H.X.
AU - Ning, H.P.
AU - Wilson, R.
AU - Wei, X.Y.
AU - Shi, B.
AU - Ye, H.
AU - Reece, M.J.
PY - 2013/5
Y1 - 2013/5
N2 - 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±0.1pC/N for La1.85Ce0.15Ti2O7 textured ceramic.
AB - 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±0.1pC/N for La1.85Ce0.15Ti2O7 textured ceramic.
KW - curie point
KW - ferroelectric
KW - PLS ceramic
KW - SPS
UR - http://www.scopus.com/inward/record.url?scp=84872292301&partnerID=8YFLogxK
U2 - 10.1016/j.jeurceramsoc.2012.11.015
DO - 10.1016/j.jeurceramsoc.2012.11.015
M3 - Article
AN - SCOPUS:84872292301
SN - 0955-2219
VL - 33
SP - 1001
EP - 1008
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
IS - 5
ER -