Melt Dispersion Mechanism for Fast Reaction of Nanothermites

Abstract

The theoretically predicted relationship tor the relative flame rate versus relative particle size based on the melt dispersion mechanism MDM, which was previously confirmed for oxidation of 40-120 nanometer diameter aluminum particles, is found 10 be in agreement with experiments for 1-3 micrometer diameter Al particles and fluorination. The main physical parameters for MDM pressure in molten particle, cavitation threshold, and nanoclusters' velocity have been estimated for micron scale particles. The results suggest parameters that could be controlled during particle synthesis that would enable micron scale Al particles to react and achieve the performance of nanoscale Al particles.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2006
Accession Number
ADA534332

Entities

People

  • Blaine W. Asay
  • Michelle L. Pantoya
  • Steven F Son
  • Valery I. Levitas

Organizations

  • Texas Tech University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Chemical Reaction Properties
  • Combustion
  • Diffusion Coefficient
  • Dispersions
  • Engineering
  • Equations Of State
  • Flame Propagation
  • High Temperature
  • Ignition
  • Ignition Lag
  • Materials
  • Mechanical Engineering
  • Nanoparticles
  • Nanothermites
  • Particle Size
  • Particles
  • Tensile Strength

Fields of Study

  • Environmental science

Readers

  • Materials Science and Engineering.
  • Nanoscale Plasmonic Nanotechnology
  • Plasma Physics.