期刊
FERROELECTRICS
卷 439, 期 -, 页码 88-94出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00150193.2012.741946
关键词
Lead-free; bismuth potassium titanate; bismuth ferrite; relaxor
资金
- Norwegian Research Council, FRINATEK grant [197497]
Dense and phase-pure ferroelectric ceramics of 75 mol.% Bi0.5K0.5TiO3 - 25 mol.% BiFeO3 are prepared by the conventional solid state reaction method. Their crystal structure is analyzed and discussed. The dielectric and piezoelectric properties of the ceramics are investigated at various temperatures. The ceramics exhibit relaxor-like dielectric properties and high electric field-induced strain (equivalent to 250-300 pm/V at 25-75 degrees C), not previously reported for this composition, making it a promising lead-free alternative for actuator applications.
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