Investigations of Oxidation Protection Systems for Carbon-Carbon Composites Formed by Chemical Vapor Deposition and Plasma-Assisted Chemical Vapor Deposition Techniques

Abstract

Conditions necessary for the preparation of pack cemented oxidation resistant reacted layers on carbon-carbon composites were developed. Reacted layers were produced containing SrC, ZrC, B4C. The oxidation resistance of such layers were listed in air at temperatures up to 1800 C and the results were compared. Additional surface layers deposited into the reacted layers consisted of SiC, ZrB2, SiC/Zrb2 and graded Sic/ZrC. These layers significantly improved the oxidation resistance of the layers generated by pack cementation the oxidation resistance of the combined layer systems (pack cementation plus CVD) was determined by subjecting each system to an air environmental in an isothermal and a cyclicly varying temperature environmental temperatures up to 1700 C.

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Document Details

Document Type
Technical Report
Publication Date
Jan 21, 1991
Accession Number
ADA232800

Entities

People

  • J. Don
  • Jundi He
  • M. A. Wright

Organizations

  • Southern Illinois University Carbondale

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Body Weight
  • Carbon Carbon Composites
  • Carbon Fibers
  • Ceramic Materials
  • Ceramic Matrix Composites
  • Chemical Vapor Deposition
  • Chemistry
  • Coatings
  • Composite Materials
  • Computers
  • Diffraction
  • Electron Microscopy
  • Materials Processing
  • Materials Science
  • Microscopy
  • Protective Coatings
  • Vapor Deposition

Fields of Study

  • Materials science

Readers

  • Surface Engineering/Surface Coating Technology.
  • Thin Film Deposition Science.