Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 709, Issue -, Pages 16-23Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.03.114
Keywords
Multiferroics; Ferroelectrics; Piezoelectrics; Ceramics
Categories
Funding
- National Natural Science Foundation of China [11404331, 91422303]
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The ternary solid solution system of BiFeO3-NdFeO3-PbTiO3 (BF-NF-PT) has been synthesized in the form of ceramics by conventional solid reaction method in order to understand multiferroic properties. The introduction of NdFeO3 into the BiFeO3-PbTiO3 binary system can effectively increase electrical properties. The ternary system exhibits enhanced piezoelectric properties with optimal piezoelectric constants d(33) = 142 pC/N and 135 pC/N, and reduced coercive fields E-C = 32.63 kV/cm and 15.55 kV/cm for 0.52BiFeO(3)-0.08NdFeO(3)-0.40PbTiO(3) and 0.20BiFeO(3)-0.20NdFeO(3)-0.60PbTiO(3), respectively. The Curie temperature (T-C) of the BiFeO3-NdFeO3-PbTiO3 ceramics varies in the range, of 412 degrees C-260 degrees C. The magnetic hysteresis loops shows that the ternary system is paramagnetism originated from canting of paramagnetic sublattices in BF-NF-PT, because the exchange interaction between Fe3+ at the octahedral sites is affected by Nd3+ ions. (C) 2017 Elsevier B.V. All rights reserved.
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