In Situ Liquid-Crystal-Polymer Fiber Reinforced Aluminum Matrix Composite.

Abstract

POLYMETS are a new class of hybrid materials composed of metals and polymers. The microstructure and mechanical properties of POLYMETS can be customized to meet a wide variety of design requirements. In this research, five to twenty volume percent of a thermotropic, wholly aromatic, liquid crystal polymer was mixed with -240/+325 mesh commercially pure aluminum powder and hot extruded at 300 C. The tensile properties of these POLYMETS were evaluated and the results compared to a pure aluminum control specimen. Optical and electron microscopy were used to examine the microstructures of the extruded rods and fracture surfaces of the tensile specimens. It was observed that polymer fibrils aligned in the extrusion direction.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1991
Accession Number
ADA239860

Entities

People

  • Gilbert J. London
  • William E. Frazier

Organizations

  • Naval Air Warfare Center Warminster

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Composite Materials
  • Crystals
  • Electron Microscopy
  • Electrons
  • Liquid Crystal Polymers
  • Liquid Crystals
  • Materials
  • Materials Engineering
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Mechanical Working
  • Polymeric Films
  • Polymers
  • Tensile Properties
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Circadian Sleep-Wake Regulation and Chronobiology
  • Materials Science and Engineering.
  • Reinforced Composite Materials

Technology Areas

  • Microelectronics