Very High Temperature Fibers of TiC and TiB2

Abstract

The purpose of this work is to demonstrate the value of single crystal fibers of titanium carbide and titanium boride as fibers for strengthening elements in matrix composite materials. LaserGenics has used the laser-heated pedestal-growth technique to grow short lengths of these materials in fiber form. We were not able to reduce the oxygen content in the growth chamber to a low enough of a level that would ensure single crystal growth. The fibers grown were multicrystaline and, therefore, did not possess the hoped for strength. It is clear from these early growths that single crystal fibers of these matrix materials can be grown. Growth in a reduced level of oxygen should be done and then fibers of significant length should be grown.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1991
Accession Number
ADA237423

Entities

People

  • Richard G. Schlecht

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Composite Materials
  • Controlled Atmospheres
  • Crystal Structure
  • Crystals
  • High Temperature
  • Laser Applications
  • Laser Beams
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Mechanical Working
  • Modulus Of Elasticity
  • Shear Modulus
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Directed Energy