On the Influence of Moisture on Dielectric Properties of Polyetheretherketone (PEEK) Carbon-Fiber Composites

Abstract

An analysis of local and global mechanisms of heat generation and distribution in carbon-fiber-based composites subjected to an alternating magnetic field has shown that heating is dependent upon the dielectric properties of the polymer matrix. These properties were investigated as functions of temperature, frequency, and moisture content. The results indicate little dependence of the dielectric constant on temperature or frequency, while the loss tangent exhibited a substantial dependence on both frequency and temperature. A substantial dependence of loss tangent on moisture content in polyetheretherketone (PEEK) was found.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2000
Accession Number
ADA378798

Entities

People

  • Bruce K. Fink
  • John W. Gillespie Jr.
  • Roy L. Mccullough

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Artillery
  • Carbon Fibers
  • Composite Materials
  • Dielectric Permittivity
  • Dielectric Properties
  • Dielectrics
  • Dissipation Factor
  • Electrical Properties
  • Fibers
  • Frequency
  • Graphitic Materials
  • Magnetic Fields
  • Materials
  • Materials Laboratories
  • Materials Science
  • Military Research
  • Moisture Content

Readers

  • Plasma Physics / Magnetohydrodynamics
  • Reinforced Composite Materials