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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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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.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Texas Tech University, Lubbock, Texas, USA, 79409

    Michelle L. Pantoya & J. J. Granier

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  1. Michelle L. Pantoya
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  2. J. J. Granier
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Correspondence to Michelle L. Pantoya.

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Pantoya, M., Granier, J. The effect of slow heating rates on the reaction mechanisms of nano and micron composite thermite reactions. J Therm Anal Calorim 85, 37–43 (2006). https://doi.org/10.1007/s10973-005-7342-z

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  • DOI: https://doi.org/10.1007/s10973-005-7342-z

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