Dynamic Consolidation of Combustion Synthesized Alumina-Titanium Diboride Ceramic Composites.

Abstract

A mixture of TiO2, B2O3, and Al powders was reacted exothermically to form a low-density Al2O3-TiB2 foamed product. After the cessation of the combustion synthesis reaction, this hot foam was densified by the pressure waves generated by the detonation of an explosive charge. The delay time between the initiation of the combustion synthesis and detonation of the explosive, the thickness of the explosive charge, and the strength of sample confinement were found to influence the effectiveness of the consolidation. Analysis of the combustion synthesis reaction temperature histories and microscopy of the reacted product sponge are used to develop additional information about this reaction/consolidation process. These results, and the microstructural properties of the combustion-synthesized and dynamically consolidated products, are discussed. jg p4

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1995
Accession Number
ADA303732

Entities

People

  • Andrus Niiler
  • Guillermo R. Villalobos
  • Kathryn V. Logan
  • Laszlo J Kecskes
  • Thomas Kottke

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Ceramic Materials
  • Ceramic Matrix Composites
  • Chemical Reactions
  • Combustion
  • Composite Materials
  • Energetic Materials
  • Exothermic Reactions
  • Explosive Charges
  • Explosives
  • Failure Mode And Effect Analysis
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Titanium
  • Transition Temperature

Readers

  • Combustion science or combustion engineering.
  • Polymer Science and Engineering.
  • Powder metallurgy of Titanium alloys.