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|Title:||Samarium and manganese-doped lead titanate ceramic fiber/epoxy 1-3 composite for high-frequency transducer application|
|Source:||IEEE transactions on ultrasonics, ferroelectrics, and frequency control, Oct. 2003, v. 50, no. 10, p.1371-1376 How to cite?|
|Journal:||IEEE transactions on ultrasonics, ferroelectrics, and frequency control|
|Abstract:||Samarium- (Sm) and manganese- (Mn) doped lead titanate ceramic fibers with a diameter of 35 μm were prepared using a sol-gel method. The X-ray diffraction pattern shows that the fibers have a pure perovskite structure. The 1-3 composite disks with a thickness of 31-41 μm and with ceramic volume fraction of ∼0.68 have been prepared using the samarium and manganese doped lead titanate (PSmT) fibers. The resonance characteristics of the poled composite disks were measured. A focused transducer was fabricated using a concave 1-3 composite disk with nonuniform thickness in order to enhance its bandwidth. The insertion loss (IL), pulse-echo response and frequency spectrum of the composite transducer were measured. The center frequency of the transducer was ∼31 MHz with a -3 dB bandwidth of ∼123% and a low IL of 29.3 dB.|
|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.|
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