An array of lead zirconate titanate (PZT) rods whose cross section is 25 mu m square was fabricated using synchrotron radiation (SR) lithography, and the effects of the aspect ratio (height/width) of the PZT rod on 1-3 piezoelectric composite properties were studied. The aspect ratio was between 3 and 9. Mechanical quality factor and acoustic impedance were found to depend weakly on the aspect ratio. However, electromechanical coupling coefficients were found to increase as the aspect ratio increased. Based on the result of deformation simulation by the finite element method (FEM), this dependence was found to be caused by the increase in piezoelectric coefficients as the aspect ratio increased.
机构:
Penn State Univ, Mat Res Lab, Int Ctr Actuators & Transducers, University Pk, PA 16802 USAPenn State Univ, Mat Res Lab, Int Ctr Actuators & Transducers, University Pk, PA 16802 USA
Du, XH
Wang, QM
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Penn State Univ, Mat Res Lab, Int Ctr Actuators & Transducers, University Pk, PA 16802 USAPenn State Univ, Mat Res Lab, Int Ctr Actuators & Transducers, University Pk, PA 16802 USA
Wang, QM
Belegundu, U
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Penn State Univ, Mat Res Lab, Int Ctr Actuators & Transducers, University Pk, PA 16802 USAPenn State Univ, Mat Res Lab, Int Ctr Actuators & Transducers, University Pk, PA 16802 USA
Belegundu, U
Uchino, K
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Penn State Univ, Mat Res Lab, Int Ctr Actuators & Transducers, University Pk, PA 16802 USAPenn State Univ, Mat Res Lab, Int Ctr Actuators & Transducers, University Pk, PA 16802 USA
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Okayama Univ, Grad Sch Nat Sci & Technol, Kita Ku, 3-7-1 Tsushimanaka, Okayama 7008530, JapanOkayama Univ, Grad Sch Nat Sci & Technol, Kita Ku, 3-7-1 Tsushimanaka, Okayama 7008530, Japan