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Thermal Characterization of Passivated Nanometer Size Aluminium Powders

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Abstract

The thermal properties of Alex, a nanosized Al powder, were determined using various techniques, including DSC, TG, simultaneous TG-DTA (SDT) and accelerating rate calorimetry (ARC). The results demonstrate that the specific heat capacities of nano and micron size Al powders are similar between 30 and 400°C. Dynamic and isothermal methods were used to determine the kinetic parameters for the oxidation reaction of Alex, which was detected at an onset temperature of 481°C. The results obtained were in good agreement with each other. From the ARC experiments, exotherms were detected near 340 and 260°C for experiments started at ambient pressure and at 0.72 MPa, respectively.

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Authors and Affiliations

  1. Canadian Explosives Research Laboratory, Natural Resources Canada, 555 Booth St., Ottawa, ON, K1A 0G1, Canada

    D. E. G. Jones, R. C. Fouchard, A. M. Turcotte & Q. S. M. Kwok

  2. Defence Research Establishment Valcartier, 2459 Pie-XI Blvd. North, Val-Bélair, QC, G3J 1X5, Canada

    P. Brousseau

Authors
  1. D. E. G. Jones
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  2. P. Brousseau
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  3. R. C. Fouchard
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  4. A. M. Turcotte
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  5. Q. S. M. Kwok
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Jones, D.E.G., Brousseau, P., Fouchard, R.C. et al. Thermal Characterization of Passivated Nanometer Size Aluminium Powders. Journal of Thermal Analysis and Calorimetry 61, 805–818 (2000). https://doi.org/10.1023/A:1010197115003

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  • DOI: https://doi.org/10.1023/A:1010197115003

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