【摘 要】
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Background,Motivation and Objective Relaxor-based ferroelectric single crystals exhibit high coupling coefficient as one aspect of their piezoelectric properties.Three generations have been developed,
【机 构】
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School of Engineering,Physics and Mathematics,University of Dundee,Dundee,Scotland,United Kingdom;In
论文部分内容阅读
Background,Motivation and Objective Relaxor-based ferroelectric single crystals exhibit high coupling coefficient as one aspect of their piezoelectric properties.Three generations have been developed,(Ⅰ) binary e.g.PMN-PT,(Ⅱ) ternary,e.g.PIN-PMN-PT and(Ⅲ) doped ternary e.g.Mn:PIN-PMN-PT with compositional engineering for higher rhombohedral-to-tetragonal phase transition temperature(TRT),higher coercive field(EC) and higher mechanical quality factor(QM).Ultrahigh piezoelectric coefficients(d15 = 2190 pC/N and d36 = 1060 pC/N) have been confirmed with domain engineering,when the single crystal was characterized under ambient conditions(Liu,Zhang et al.2010;TRS 2014).All these improvements contribute to their potential applications in high power applications,such as therapeutic ultrasonic transduction and underwater SONAR projection.The work for this paper aimed to characterize the piezocrystals under high power driving conditions,including investigation of the electrical impedance spectroscopy curve,vibration performance and loss analysis.
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