Ferroelectric Polarization Mechanisms in Nylon 11

Abstract

The combined results of piezoelectric coefficient (d31, e31) measurements, FTIR spectroscopy and x-ray diffraction studies of three dimensionally oriented Nylon 11 films reveal that the polarization occurs in the crystalline regions. In addition, the orientation of dipoles in a poled Nylon 11 film is not altered by a high temperature annealing treatment (185 deg C). This unique high temperature stability of dipole orientation in the crystalline regions provides a method to investigate the polarization mechanism for poled Nylon 11 films. Our results indicate that the difference in observed x-ray diffraction patterns from unpoled and poled films results from an initial 90 deg field induced dipole reorientation mechanism. Further dipole orientation appears to result from a 180 deg C switching mechanism.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1992
Accession Number
ADA252269

Entities

People

  • B. A. Newman
  • J. I. Scheinbeim
  • J. W. Lee

Organizations

  • Rutgers University–New Brunswick

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Annealing
  • Chemistry
  • Coefficients
  • Crystal Structure
  • Diffraction
  • Electric Fields
  • High Temperature
  • Materials
  • Materials Science
  • Measurement
  • Orientation (Direction)
  • Polarization
  • Spectra
  • Switching
  • Three Dimensional
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.