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

Michelle L. Pantoya; J. J. Granier

doi:10.1007/s10973-005-7342-z

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

Michelle L. Pantoya, J. J. Granier

Mechanical Engineering

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	37-43
Number of pages	7
Journal	Journal of Thermal Analysis and Calorimetry
Volume	85
Issue number	1
DOIs	https://doi.org/10.1007/s10973-005-7342-z
State	Published - Jul 2006

Keywords

Heat of reaction
Ignition temperature
Nano-aluminum
Nanocomposite
Thermites

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