Studies of proton irradiated 0.9PMN-0.1PT/P(VDF-TrFE) 0-3 composites

Kwok Ho Lam, H. L.W. Chan, C. L. Choy, E. Z. Luo, I. H. Wilson

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


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(Mg1/3Nb2/3)O3-0.1PbTiO3 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 × 1013 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).
Original languageEnglish
Title of host publicationIEEE International Symposium on Applications of Ferroelectrics
Number of pages4
Publication statusPublished - 1 Dec 2002
EventProceedings of the 13th IEEE International Symposium on Applications of Ferroelectronics - Nara, Japan
Duration: 28 May 20021 Jun 2002


ConferenceProceedings of the 13th IEEE International Symposium on Applications of Ferroelectronics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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