Polarization Mechanisms in Phase II Poly(Vinylidene Fluoride) Films.

Abstract

Unoriented phase II films were poled with fields up to 3.2 MV/cm at room temperature. A determination of the piezoelectric strain coefficent provided a measure of the residual polarization achieved, while an x-ray diffraction study provided information about field-induced phase changes which appeared to be related directly to the residual polarization. In an unoriented film, crystals make all possible orientation with respect to the poling field and different polarization mechanisms appear to depend on the crystal orientation. A number of different polarization mechanisms are discussed. A new crystal form for Poly(Vinylidene Fluoride) (PVF2) was observed. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 12, 1981
Accession Number
ADA107850

Entities

People

  • B. A. Newman
  • C. H. Yoon
  • J. I. Scheinbeim
  • K. D. Pae

Organizations

  • Rutgers University–New Brunswick

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Bragg Angle
  • Chemical Engineering
  • Chemistry
  • Crystal Structure
  • Dielectric Permittivity
  • Diffraction
  • Dipole Moments
  • Engineering
  • Films
  • High Pressure
  • Materials
  • Materials Laboratories
  • Materials Science
  • Military Research
  • Phase Transformations
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Regression Analysis.