Development of Dual Fiber Reinforced Glass Matrix Composites for Structural Space Based Applications

Abstract

The goal of the program was to create high specific stiffness, zero thermal composites for structural applications in space by using dual fiber reinforcement approach. This approach consisted of adding large-diameter monofilaments as a secondary reinforcement to a pitch-based carbon fiber reinforces glass matrix composite. It was demonstrated that composite thermal expansion could be increased into the near-zero domain over the temperature range of interest (-100 C to +70 C) using a wide variety of monofilaments with and without fiber coatings. The use of uncoated boron monofilaments resulted in rather poor tensile performance and brittle fracture behavior due to degradation of the boron monofilaments during composite processing. The use of coated monofilaments resulted in a marked improvement in tensile strength and fracture behavior. Keywords: Glass matrix composites, Carbon fiber reinforced composites, Fiber-matrix interface, Hybrid composites.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1990
Accession Number
ADA223801

Entities

People

  • K. M. Prewo
  • W. K. Tredway

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Carbon Carbon Composites
  • Carbon Fibers
  • Ceramic Matrix Composites
  • Coatings
  • Composite Material Fabrication
  • Composite Materials
  • Fabrication
  • Fiber Reinforced Composites
  • Fiber Reinforcement
  • Materials
  • Materials Processing
  • Materials Science
  • Mechanical Working
  • Modulus Of Elasticity
  • Silicon Carbide
  • Stress Strain Relations
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials

Technology Areas

  • Space