The Effect of Slow Heating Rates on the Reaction Mechanisms of Nano and Micron Compossite Thermite Reactions

Abstract

Thermal analyses were performed on AlMoO3 thermite reactions as a function of Al particle size (ranging from 50 to 20 micrometers) and heating rate (from 2.5 to 15 K/min). Results include ignition (onset) temperatures and heats of reaction. The nano-thermites initiate prior to reactant phase changes and at least 300 C below micron-thermites. The differences in ignition temperatures are suggestive of different ignition mechanisms. Nano-thermites display higher heats of reaction that are dependent on experimental conditions.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2006
Accession Number
ADA534343

Entities

People

  • J. J. Granier
  • Michelle L. Pantoya

Organizations

  • Texas Tech University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Chemical Properties
  • Composite Materials
  • Engineering
  • Equations
  • Exothermic Reactions
  • Geometry
  • Heat Energy
  • Heat Of Reaction
  • Ignition
  • Materials Science
  • Measurement
  • Mechanical Engineering
  • Metastable Intermolecular Composites
  • Particle Size
  • Phase Transformations
  • Reaction Mechanisms
  • Transition Temperature

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Combustion science or combustion engineering.