Effect of Shape Parameter on the Performance of 1-3 Piezoelectric Composites

Min Sun; Hua Wang; Shi Feng Huang; Xin Cheng

doi:10.4028/www.scientific.net/AMR.306-307.301

Paper Titles

Studies on Donor-Acceptor Substituted with Triphenylamine-Core Fluorescent Derivatives
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Study on Novel Method to Measure Luminescence Time Interval Between the Initial and Terminal of Light Emission in Frequency Domain
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A Cement Based Piezoelectric Composite Sensorfor Health Monitoring of Civil Engineering Structure
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Electrochemical Polymerization of N-(9-Fluorenylmethoxycarbony)-Glycine and Characterization of its Polymers
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Effect of Shape Parameter on the Performance of 1-3 Piezoelectric Composites
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Fabrication and Properties of 1-3 Polymer Modified Cement Based Piezoelectric Composites
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High Quantum Efficiency Dependence on Structure Optimizatin for Gallium Nitride Photocathode
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The Range Distribution of Nd Ions Implanted in Silicon-on-Insulator
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Poly[N-(9-Fluorenylmethoxycarbonyl)-L-Phenylalanine] with Good Solubility and Good Blue Light-Emitting Properties via Electropolymerization
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 306-307Effect of Shape Parameter on the Performance of...

Effect of Shape Parameter on the Performance of 1-3 Piezoelectric Composites

Abstract:

1-3 polymer-based piezoelectric composites were fabricated using epoxy as matrix by the cut-filling method. The influences of shape parameter on properties of the piezoelectric composite, which include the unit cross-sectional area and the aspect ratio w/t were analyzed. The results indicate that with the increasing of the unit cross-sectional area, the quality factor value Q_m increases and the hydrostatic piezoelectric voltage g_h increases and then goes down rapidly while the PMN volume fraction φ(PMN) is kept under the 50%. When the φ(PMN) is 60%, g_h is decreased. The trend of the hydrostatic figures of merit d_h·g_h is similar with g_h as the change of the unit cross-sectional area, but the value is different. In the 60% PMN volume fraction, the optimal value of the d_h·g_h is chosen. With the increasing of the w/t, the hydrostatic pressure sensitivity M_h, the d_h·g_h values and the Q_m values are all decreased rapidly, and the thickness electromechanical coupling factor k_t is increased. In other words, the test results show that the smaller of unit cross-sectional area and thinner of thickness, the more helpful for frequency bandwidth and sensitivity when it is used in transducer.