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http://hdl.handle.net/10397/381
| Title: | Single crystal PMN-0.33PT/epoxy 1-3 composites for ultrasonic transducer applications | Authors: | Cheng, KC Chan, HLW Choy, CL Yin, Q Luo, H Yin, Z |
Issue Date: | Sep-2003 | Source: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control, Sept. 2003, v. 50, no. 9, p.1177-1183 | Abstract: | Lead magnesium niobate-lead titanate 0.67Pb (Mg[sub ⅓]Nb[sub ⅔])O₃-0.33PbTiO₃ (PMN-0.33PT, abbreviated as PMN-PT) single crystals were used to fabricate PMN-PT/epoxy 1-3 composites with different volume fractions of PMN-PT ranging from 0.4 to 0.8. The electromechanical properties of the 1-3 composites were determined by the resonance technique. Theoretical modeling of the 1-3 composites matched quite well with the measured material properties. It was demonstrated that the thickness electromechanical coupling coefficients of the composites could reach as high as 0.8. A 2.4 MHz plane ultrasonic transducer was fabricated using a PMN-PT/epoxy 1-3 composite with 0.37 volume fraction of PMN-PT. It shows a -6 dB bandwidth of ∼61% and an insertion loss of -14 dB. | Keywords: | Ultrasonic transducers Piezoelectric materials Composite materials |
Publisher: | Institute of Electrical and Electronics Engineers | Journal: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control | ISSN: | 0885-3010 | EISSN: | 1525-8955 | DOI: | 10.1109/TUFFC.2003.1235328 | Rights: | © 2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
| Appears in Collections: | Journal/Magazine Article |
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