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Studies on the ageing of a magnesium-strontium nitrate pyrotechnic composition using isothermal microcalorimetry and thermal analysis techniques

Tuukkanen, I., Brown, S.D., Charsley, Edward L., Goodall, S.J., Rooney, J.J., Griffiths, Trevor T. and Lemmetyinen, Helge (2004) Studies on the ageing of a magnesium-strontium nitrate pyrotechnic composition using isothermal microcalorimetry and thermal analysis techniques. Thermochimica Acta, 417. pp. 223-229. ISSN 0040-6031

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    Abstract

    The ageing behaviour of a pyrotechnic composition containing equal parts by mass of magnesium and strontium nitrate has been followed by isothermal microcalorimetry. The measurements were carried out on the samples at 50 °C and 65% relative humidity in air using closed ampoules. The results have been compared to those obtained for magnesium powder under the same conditions. Following an initial induction period, the pyrotechnic compositions reacted at a much faster rate than magnesium powder alone. The main reaction products were found to be magnesium hydroxide and strontium nitrite; the amounts formed have been correlated with the cumulative heats of ageing. In addition, the influence of the ageing process on the pyrotechnic reaction has been studied by high temperature differential scanning calorimetry (DSC) and by modulated temperature DSC.

    Item Type: Article
    Additional Information: Copyright © 2007 Elsevier B.V. All rights reserved. ScienceDirect® is a registered trademark of Elsevier B.V.
    Subjects: Q Science > QD Chemistry
    Schools: School of Applied Sciences
    School of Applied Sciences > Materials and Catalysis Research Centre
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    References

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    11. I. Tuukkanen, E.L. Charsley, J.J. Rooney, T.T. Griffiths, unpublished work.

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    Depositing User: Briony Heyhoe
    Date Deposited: 12 Jul 2007
    Last Modified: 15 Sep 2010 12:58
    URI: http://eprints.hud.ac.uk/id/eprint/198

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