Accession Number:

ADA263186

Title:

Explosive Consolidation of Combustion Synthesized TiC and TiB2: Precursor Morphology Effects

Descriptive Note:

Final rept. 1 Oct 1987-1 Oct 1989

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Report Date:

1993-04-01

Pagination or Media Count:

46.0

Abstract:

The combustion synthesisdynamic consolidation CSDC technique has been applied to titanium-carbon and titanium-boron mixture with different initial precursor carbon and boron powder morphologies. The evolution of the CS DC product structure was investigated by analyzing and comparing the combustion synthesis products following three fabrication process steps reacted loose powders, reacted green compacts, and reacted green compacts which were dynamically consolidated shortly after the synthesis. In all cases, the purity of the precursor carbon and boron powders was found to affect the products residual porosity. However, the dependence of the resultant product grain morphology on the precursors morphology was not as straightforward. Correlations between the respective product structures and possible reaction mechanisms are discussed.... SHS, Combustion synthesis, Explosive compaction, Dynamic consolidation, TiC, TiB2, Precursors, Morphology, Processing, Reaction mechanism.

Subject Categories:

  • Inorganic Chemistry
  • Ammunition and Explosives
  • Crystallography
  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE