Zhaoping Yang, Xiaobing Li, Fenglong Sun, Qiyuan Zhang, Jun Chen, Hongling Zhu, Shengdong Nie, Na Yang, Changjiang Zhou, Wenning Di
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引用次数: 0
Abstract
High performance 1–3 piezocomposite is crucial to high-frequency medical ultrasound imaging as its performance enhancement to an ultrasound transducer. A bandwidth enhancement effect had been found when a novel PZT-based short-fiber piezocomposite was fabricated and applied in the transducer. The electromechanical coupling coefficient kt of the short-fiber piezocomposite was as high as 63% at high frequency. An ultra-high bandwidth of the ultrasound transducer obtained to be 131.6% @-6 dB. The high performances of the piezocomposite were owing to the longitudinal vibration enhancement and lateral vibrations depression which were derived from the shape and randomized distribution of the ceramic pillars, respectively. It indicates that the PZT short-fiber piezocomposite is a promising candidate for commercial high-frequency medical ultrasound transducers.
期刊介绍：
The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.
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