Boron Filaments.

Abstract

The combination of properties of elemental boron filaments make these unique among all other continuous filamentary materials. The presently known filament characteristics indicate great potential for many special applications pertaining to space flight, as well as for the development of new composite materials. The properties of particular interest include the very high modulus of elasticity, about 55 x 10(exp 6) psi, the high melting temperature, about 2040 deg C, the low density, about 2.35 g/cc, and the considerable retention of strength at temperatures to 1000 deg C. Although present strength-to-weight ratio for boron filaments is similar to that for glass filaments there is real potential for increasing the boron filament strength significantly. jg p5

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1964
Accession Number
ADA306099

Entities

People

  • Robert M. Witucki

Tags

Communities of Interest

  • Advanced Electronics
  • Space

DTIC Thesaurus Topics

  • Aluminum
  • Aluminum Alloys
  • Ceramic Materials
  • Coatings
  • Composite Materials
  • Diameters
  • Fabrication
  • High Temperature
  • Materials
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Metal Matrix Composites
  • Modulus Of Elasticity
  • Resins
  • Silicon Carbide
  • Tensile Strength

Readers

  • Reinforced Composite Materials
  • Systems Analysis and Design

Technology Areas

  • Space
  • Space - Hall-Effect Thruster