Thermal Jetting Effects of SHS Reacted Titanium Diboride

Abstract

Thermal jets consisting of rapidly evolving gaseous and particulate materials are formed during the highly exothermic,well contained TiB2 SHS reactions. The relative magnitudes of the effects of ignition location, precursor powder weight, boron type, titanium purity and nozzle orifice dimension on the jetting action have been measured. The thermal effects of the jets on surrounding materials are found to be strongly correlated with the amount of product material ejected from the reaction vessel. In particular, the most active parameters have been determined to be the nozzle orifice size and the type of precursor powder. This study has also yielded a method for controlling the deposition of jet materials onto nearby surfaces. (JES)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1990
Accession Number
ADA222594

Entities

People

  • Andrus Niiler
  • Laszlo J Kecskes
  • Thomas Kottke

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Assembly
  • Body Weight
  • Combinatorial Analysis
  • Commerce
  • Electron Microscopes
  • Energy
  • Graphitic Materials
  • Heat Energy
  • Ignition
  • Materials
  • Metals
  • Particles
  • Precursors
  • Scanning Electron Microscopes
  • Standards
  • Titanium

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Surface Engineering/Surface Coating Technology.
  • Thin Film Deposition Science.