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Optimization of 1-3 relaxor-PT single-crystal/polymer composites

机译:1-3张弛张-PT单晶/聚合物复合材料的优化

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Abstract: PZN-PT single crystals exhibit an ultra-large longitudinal bar mode coupling coefficient (k$-33$/) of approximately 0.94. The thickness mode coupling coefficient (k$-t$/), however, is just comparable to soft PZT ceramics. In order to utilize the advantages of single crystals, it is desirable to incorporate them into a 1 - 3 composite structure. The single crystals possess a very large effective radial mode-coupling coefficient (k$-p$/) and are elastically soft compared with PZT ceramics. As a result, 1 - 3 single crystal polymer composites exhibit a very large k$-p$/ of approximately 0.7 and only moderately enhanced k$- t$/ (approximately 0.8) when typical epoxies are used as the matrix material.!13
机译:摘要:PZN-PT单晶具有约0.94的超大纵向棒模耦合系数(k $ -33 $ /)。然而,厚度模式耦合系数(k $ -t $ /)仅与软PZT陶瓷相当。为了利用单晶的优点,期望将它们掺入1-3复合结构中。与PZT陶瓷相比,单晶具有非常大的有效径向模式耦合系数(k $ -p $ /),并且弹性柔软。结果,当使用典型的环氧树脂作为基质材料时,1-3个单晶聚合物复合材料的k $ -p $ /非常大,约为0.7,而k $ -t $ /仅适度增强(约0.8)!13

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