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|Title: ||Studies of proton irradiated 0.9PMN-0.1PT/P(VDF-TrFE) 0-3 composites|
|Authors: ||Lam, Kwok-ho|
Chan, Helen L. W.
Luo, E. Z.
Wilson, I. H.
|Subjects: ||Polyvinylidene fluoride-trifluoroethylene|
|Issue Date: ||2002 |
|Citation: ||ISAF 2002 : proceedings of the 13th IEEE International Symposium on Applications of Ferroelectrics : Nara, Japan, May 28-June 1, 2002, p. 33-36.|
|Abstract: ||Polyvinylidene fluoride-trifluoroethylene
[P(VDF-TrFE) 70/30 mol%] copolymer can be
transformed from a ferroelectric, to a relaxor material after proton irradiation. The phase transition peak broadens and shifts towards lower temperature as the
measurement frequency decreases. In the present study, 0-3 composites are fabricated by incorporating 0.9Pb(Mg[sub ⅓]Nb[sub ⅔])0₃-0.1PbTi0₃ ceramic powder into a P(VDF-TrFE) 70/30 mol% copolymer matrix. 0.9PMN-0.1PT ceramic is a relaxor ferroelectric with high dielectric permittivity. It was found that the relative permittivity of PMN-PT/P(VDF-TrFE) 0-3 composite increases with increasing ceramic volume fraction. Composites with 0.3 and 0.4 volume fraction of 0.9PMN-0.1PT were subjected to proton irradiation. With a 80 Mrad (4.76 x 1O¹³ ions/cm²) proton dosage, the relative permittivity of the 0.4 volume fraction 0-3 composites can go up to 130 near room temperature (at 1kHz).|
|Rights: ||© 2002 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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|Type: ||Conference Paper|
|Appears in Collections:||MRC Conference Papers & Presentations|
AP Conference Papers & Presentations
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