Distribution of Dissipated Power in a Graphite Fiber Reinforced Epoxy Composite Heated in A Microwave Cavity,

Abstract

Temperature profiles of a carbon fiber epoxy composite disk heated in a single mode/controlled multimode cylindrical resonant cavity with 2.45 GHz microwave energy indicate that microwave energy is limited in its penetration into the disk, from the top and the perimeter (a skin effect). Initial heating profiles allow an approximate determination of the penetration depth. In the steady state, the temperature gradients indicate that the heat flow was primarily by thermal conduction from the perimeter of the disk, toward the center and out the upper and lower surfaces.

Document Details

Document Type
Technical Report
Publication Date
Apr 27, 1992
Accession Number
ADP007769

Entities

People

  • J. Asmussen
  • R. Fritz

Organizations

  • Michigan State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Carbon Fibers
  • Cavity Resonators
  • Composite Materials
  • Conduction (Heat Transfer)
  • Energy
  • Epoxy Composites
  • Fibers
  • Graphitic Materials
  • Heat Transmission
  • Materials
  • Materials Processing
  • Microwaves
  • Steady State
  • Temperature Gradients

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Microwave Engineering.
  • Structural Health Monitoring of Composite Structures.