Study of Self-Propagating Condensed Phase Reactions - TiB(2) Synthesis

Abstract

This effort was undertaken to investigate the basic aspects of the condensed phase titanium-boron reaction leading to the formation of high density and quality TiB2 under self-propagating conditions. Candidate factors for controlling microstructure were addressed and were utilized as variables in series of runs which produced TiB2. The heat of formation of TiB2 was measured directly from the reacting elements in a modified bomb calorimeter; a delta H sub f deg., 298 = -71.81 + or - 1.9 was determined which is sufficient to produce liquid TiB2 under adiabatic conditions. Variations of stoichiometry and particle size of starting powders resulted in microstructure and density differences in the final TiB2 product.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1985
Accession Number
ADA153198

Entities

People

  • Joseph F. D'andrea
  • Peter D. Zavitsanos

Organizations

  • General Electric

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Calorimeters
  • Chemical Analysis
  • Chemical Compounds
  • Chemistry
  • Diffraction
  • Diffraction Analysis
  • Heat Of Formation
  • Heat Of Reaction
  • Mass Spectrometry
  • Materials
  • Measurement
  • Mechanical Properties
  • Particle Size
  • Spectra
  • Spectrometry
  • X Rays
  • X-Ray Diffraction

Readers

  • Combustion science or combustion engineering.
  • Reinforced Composite Materials