Accession Number : ADP007769

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

Corporate Author : MICHIGAN STATE UNIV EAST LANSING

Personal Author(s) : Fritz, R. ; Asmussen, J.

Report Date : 27 APR 1992

Pagination or Media Count : 10

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.

Descriptors :   *MICROWAVES, *GRAPHITE EPOXY COMPOSITES, *CAVITY RESONATORS, CARBON, CARBON FIBERS, CAVITIES, CAVITY RESONATORS, DEPTH, DETERMINATION, DISKS, ENERGY, EPOXY COMPOSITES, FIBERS, FLOW, GRADIENTS, HEAT, HEAT TRANSMISSION, HEATING, MULTIMODE, PENETRATION, PROFILES, STEADY STATE, SURFACES, TEMPERATURE, TEMPERATURE GRADIENTS, FIBER REINFORCED COMPOSITES, THERMAL CONDUCTIVITY, CERAMIC MATERIALS, SYMPOSIA.

Subject Categories : Ceramics, Refractories and Glass
      Laminates and Composite Materials
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE