Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 724, Issue -, Pages 163-168Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.07.012
Keywords
Electrocaloric effect; Ferroelectrics; Rare earth
Categories
Funding
- National Science Foundation of China [51372018]
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This paper demonstrated the electrocaloric effect (ECE) in BaTiO3 ceramics with Ce doping in either A or B sites, which were prepared by the solid-state reaction method. All sintered samples have pure perovsikte phase, whether Ce doping in A or B sites, but the properties are different from each other. For Asite doping of Ba(1-x)CexTiO(3), the Curie temperature gradually shifts to lower temperature because the doped Ce ion have smaller radius than Ba ion, while the phase transition is diffused and the latent heat drops. Then the ECE Delta T peak shifts accordingly and Delta T-max reduces gradually except small Ce doping. For B-site doping of BaCexTi(1-x)O(3), the phase transition is diffused more significantly but the Curie temperature hardly moves, so that the ECE peak is depressed but does not shift. (C) 2017 Elsevier B.V. All rights reserved.
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