Studies of Proton Irradiated 0.9PMN-0.1PT/P(VDF-TrFE) 0-3 Composites

Lam, K.H. , Chan, H.L.W., Choy, C.L., Luo, E.Z. and Wilson, I.H. (2002) Studies of Proton Irradiated 0.9PMN-0.1PT/P(VDF-TrFE) 0-3 Composites. In: 13th IEEE International Symposium on Applications of Ferroelectrics, Nara, Japan, 1 June 2002, pp. 33-36. (doi: 10.1109/ISAF.2002.1195863)

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 1/3/Nb/sub 2/3/)O/sub 3/-0.1PbTiO/sub 3/ 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 /spl times/ 10/sup 13/ ions/cm/sup 2/) proton dosage, the relative permittivity of the 0.4 volume fraction 0-3 composites can go up to 130 near room temperature (at 1 kHz).

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Lam, Dr Koko
• Authors: Lam, K.H., Chan, H.L.W., Choy, C.L., Luo, E.Z., and Wilson, I.H.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: IEEE International Symposium on Applications of Ferroelectrics
• ISSN: 1099-4734

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