Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 26, Issue 10, Pages 7331-7340Publisher
SPRINGER
DOI: 10.1007/s10854-015-3362-z
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Funding
- National Science Foundation of China (NSFC) [51107077, 51172136]
- Fundamental Research Funds for the Central Universities [GK201305013, GK201301002, GK201403006]
- Science and Technology Program of Shaanxi Province
- Xi'an City [2013K09-26, CXY1342(4)]
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(1 - x)(Ba0.85Ca0.15)(Zr0.1Ti0.9)O-3-xBiAlO(3)((1 - x)BCZT-xBAO) piezoelectric ceramics were synthesized by a solid-state reaction method. Effects of BAO content on the sintering temperature, phase structure, microstructure and electrical properties of BCZT ceramics were investigated. X-ray diffraction revealed a phase transition from orthorhombic to tetragonal phases at x = 0.3-1.0 mol%. The grain size gradually becomes smaller with increasing the BAO content. It was observed that the introduction of BAO content not only decreased the sintering temperature from 1450 to 1300 A degrees C but also enhanced the electrical properties and temperature stability. The favorable electrical properties (d (33) = 568 pC/N, k (p) = 0.54, P (r) = 8.17 A mu C/cm(2), E (c) = 3.45 kV/cm, epsilon (m) = 13,298, epsilon (r) = 3375, tan delta = 0.021, T (c) = 72 A degrees C and S = 0.06 %) were demonstrated for the BCZT based ceramics sintered at 1300 A degrees C with x = 0.8 mol%. These results indicated that the ceramics sintered at low temperatures was promising for piezoelectric applications.
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