Large area 0-3 and 1-3 piezoelectric composites based on single crystal PMN-PT for transducer applications
Large area 0-3 and 1-3 piezoelectric composites based on single crystal PMN-PT for transducer applications
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DOI：
10.1016/j.phpro.2010.01.115
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
M. Thi;A. Hladky-Hennion;H. L. Khanh;L. Tran-Huu-Hue;M. Lethiecq;F. Levassort
中科院分区：
文献类型：
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作者：
M. Thi;A. Hladky-Hennion;H. L. Khanh;L. Tran-Huu-Hue;M. Lethiecq;F. Levassort
用压电单晶体(PSCs)制备了0-3和1-3复合材料。这两种连接性是专门为大面积制造而选择的。特别是，对1-3压电复合材料采用了层合技术，而不是标准的骰子和填充法。对于0-3连通性，使用PSC相制备的材料的厚度耦合系数是相同体积分数(60%)的标准PZT粉末的两倍。但极化的效率仍然很低。对于1-3型压电复合材料，用层合技术制备的样品的性能(如厚度耦合系数)与用标准方法得到的样品相当。最后，制作了三个中心频率在600~850 kHz之间的超声换能器，对这些新型压电复合材料的性能进行了评价。
0-3 and 1-3 composites have been fabricated using piezoelectric single crystals (PSCs). These two connectivities were specifically chosen for large area fabrication. In particular, a lamination technique was used for 1-3 piezocomposites instead of the standard dice and fill method. For 0-3 connectivity, the thickness coupling factor of fabricated materials using PSC phase is twice the value obtained using standard PZT powder for the same volume fraction (60%). But the efficiency of the poling stays low. For the 1-3 piezocomposites, the properties (such as the thickness coupling factor) of the samples fabricated by the lamination technique are comparable to those obtained with standard methods. Finally, three ultrasonic transducers with center frequency between 600 and 850 kHz were fabricated to evaluate the performance of these new piezoelectric composites.