Metallic Coatings for Graphite/Epoxy Composites.

Abstract

Metallic coating systems for graphite/epoxy laminated aircraft structures were developed to provide protection against moisture penetration, electromagnetic interference (EMI), paint strippers and lightning strikes. Foil coatings and metal-filled resin coatings were evaluated to assess the protection ability in each of these areas. The foil coatings provided a significant reduction in the moisture penetration and the associated strength loss of the laminate after exposure to humidity and humidity-thermal spiking. Two techniques were developed for the application of foil coatings to graphite/epoxy laminates. Solid aluminum foil was applied to cured laminates in a secondary bonding operation. Perforated aluminum foil was bonded to the laminate in a cocuring operation. The cocuring application required that the laminate be prebled prior to application of the foil and final cocuring to obtain the optimum strength and thickness of the laminate. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1979
Accession Number
ADA069871

Entities

People

  • Bonnie F. Simpers
  • Christian J. Staebler Jr.

Organizations

  • Grumman

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Composite Materials
  • Electromagnetic Radiation
  • Epoxy Composites
  • Epoxy Laminates
  • Fabrication
  • Fatigue Tests (Mechanics)
  • Laminates
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Mechanics
  • Test And Evaluation
  • Test Methods

Fields of Study

  • Materials science

Readers

  • Marine Propulsion Engineering and Naval Architecture
  • Reinforced Composite Materials
  • Surface Coatings Technology.