Polarization stability of amorphous piezoelectric polyimides

C. Park, Z. Ounaies, J. Su, J. G. Smith, J. S. Harrison

Research output: Contribution to journalConference articlepeer-review

7 Scopus citations

Abstract

Amorphous polyimides containing polar functional groups have been synthesized and investigated for potential use as high temperature piezoelectric sensors. The thermal stability of the piezoelectric effect of one polyimide was evaluated as a function of various curing and poling conditions under dynamic and static thermal stimuli. First, the polymer samples were thermally cycled under strain by systematically increasing the maximum temperature from 50°C to 200°C while the piezoelectric strain coefficient was being measured. Second, the samples were isothermally aged at an elevated temperature in air, and the isothermal decay of the remanent polarization was measured at room temperature as a function of time. Both conventional and corona poling methods were evaluated. This material exhibited good thermal stability of the piezoelectric properties up to 100°C.

Original languageEnglish (US)
Pages (from-to)153-158
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume600
StatePublished - Dec 3 2000
EventThe 1999 MRS Fall Meeting- Symposium Electroactive Polymers - Boston, MA, USA
Duration: Dec 29 1999 → …

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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