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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Single-crystal relaxor ferroelectric piezoactuators with interdigitated electrodes
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Single-crystal relaxor ferroelectric piezoactuators with interdigitated electrodes

机译：带叉指电极的单晶弛豫铁电压电致动器

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摘要

We report on the fabrication and performance of (1-x) Pb(Zn13/Nb23/)O3-xPbTiO3 (PZN-PT) single-crystal relaxor piezoactuators with interdigitated electrodes patterned on a single surface. An electric field gradient across the sample thickness induces a differential contraction between opposite faces, and it is responsible for the actuation. The samples are poled by energizing the electrodes at 100°C and cooling in a field. Calculations of the piezoelectric response based on a periodically modulated dipolar field yield good agreement with experiment. Discrepancies with the model are ascribed to multidomain formation in the ferroelectric sample as a result of field reversals in the applied electric field along the sample length.
机译：我们报告（1-x）Pb（Zn13 / Nb23 /）O3-xPbTiO3（PZN-PT）单晶弛豫压电致动器的制造和性能，在单个表面上构有叉指状电极。整个样品厚度上的电场梯度会引起相对面之间的差异收缩，并引起驱动。通过在100°C下对电极通电并在现场冷却来使样品极化。基于周期调制偶极场的压电响应计算与实验吻合良好。与模型的差异归因于铁电样品中的多畴形成，这是由于沿样品长度方向施加的电场发生了电场反转。

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