The effect of slow heating rates on the reaction mechanisms of nano and micron composite thermite reactions

Michelle L. Pantoya, J. J. Granier

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

Thermal analyses were performed on Al+MoO3 thermite reactions as a function of Al particle size (ranging from 50 to 20 μm) and heating rate (from 2.5 to 15 K min-1 ). 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.

Original languageEnglish
Pages (from-to)37-43
Number of pages7
JournalJournal of Thermal Analysis and Calorimetry
Volume85
Issue number1
DOIs
StatePublished - Jul 2006

Keywords

  • Heat of reaction
  • Ignition temperature
  • Nano-aluminum
  • Nanocomposite
  • Thermites

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