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

52 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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title = "The effect of slow heating rates on the reaction mechanisms of nano and micron composite thermite reactions",

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.",

keywords = "Heat of reaction, Ignition temperature, Nano-aluminum, Nanocomposite, Thermites",

author = "Pantoya, {Michelle L.} and Granier, {J. J.}",

note = "Funding Information: The authors gratefully acknowledge support from the Army Research Office under grant number W911NF-04-1-0217. We are also thankful for support provided by the National Science Foundation under grant number CST-021014 and our program manager, Dr. Linda Blevins.",

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AU - Pantoya, Michelle L.

AU - Granier, J. J.

N1 - Funding Information: The authors gratefully acknowledge support from the Army Research Office under grant number W911NF-04-1-0217. We are also thankful for support provided by the National Science Foundation under grant number CST-021014 and our program manager, Dr. Linda Blevins.

PY - 2006/7

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N2 - 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.

AB - 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.

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KW - Ignition temperature

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KW - Nanocomposite

KW - Thermites

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

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