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A study of the influence of the fuel to oxidant ratio on the ageing of magnesium-strontium nitrate pyrotechnic compositions using isothermal microcalorimetry and thermal analysis techniques

Tuukkanen, I.M., Brown, S.D., Charsley, Edward L., Goodall, S.J., Laye, Peter G., Rooney, James J., Griffiths, Trevor T. and Lemmetyinen, Helge (2005) A study of the influence of the fuel to oxidant ratio on the ageing of magnesium-strontium nitrate pyrotechnic compositions using isothermal microcalorimetry and thermal analysis techniques. Thermochimica Acta, 426. pp. 115-121. ISSN 0040-6031

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    Abstract

    The influence of the fuel to oxidant ratio on the ageing behaviour of the magnesium–strontium nitrate pyrotechnic system in the presence of water vapour has been investigated by isothermal microcalorimetry in conjunction with chemical and thermal analysis measurements. The major products of ageing were identified as magnesium hydroxide and strontium nitrite. Measurement of the ratio of the amount of magnesium hydroxide formed to that of strontium nitrate reacted has shown that for compositions containing from 10 to 60% magnesium, a major component of the ageing process could be represented by the equation 3Mg + Sr(NO3)2 + 4H2O → 3Mg(OH)2 + Sr(NO2)2 + H2. DSC studies have confirmed that the formation of strontium nitrite during ageing has a significant influence on the high temperature pyrotechnic reaction between magnesium and strontium nitrate.

    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:

    [1] E.L. Charsley, P.G. Laye and M.E. Brown, “Pyrotechnics” in Handbook of Thermal Analysis and Calorimetry, Elsevier (2003) p. 777.

    [2] A.P. Hardt, Pyrotechnics, Pyrotechnica Publications, USA (2001).

    [3] S.D. Brown, E.L. Charsley, S.J. Goodall, T.T. Griffiths, P.G. Laye and J.J. Rooney, Thermochim. Acta 401 (2003), p. 53. SummaryPlus | Full Text + Links | PDF (134 K) | View Record in Scopus | Cited By in Scopus

    [4] I.M. Tuukkanen, S.D. Brown, E.L. Charsley, S.J. Goodall, J.J. Rooney, T.T. Griffiths, H. Lemmetyinen, Thermochim. Acta 417 (2004) 233.

    [5] D. Barišin and I. Batinić-Haberle, Propellants Explos. Pyrotech. 14 (1989), p. 162.

    [6] I. Batinić-Haberle, D. Barišin and I. Spasojeveć, Proceedings of the 20th International ICT Conference, Fraunhofer-Institut, Germany (1989), p. p. 61-1.

    [7] D. Barišin, I. Spasojević and I. Batinić-Haberle, Proceedings Pyroteknikdagen, Sekt. Detonik Förbränning, Sweden (1990), p. 145.

    [8] I. Batinić-Haberle, D. Barišin, I. Spasojević and Z. Vranic, Propellants Explos. Pyrotech. 17 (1992), p. 10.

    [9] E.L. Charsley, S.B. Warrington and T.T. Griffiths, Proceedings of the 26th International ICT Conference, Fraunhofer-Institut, Germany (1995), p. p. 23-1.

    [10] S.B. Warrington, P.A. Barnes, E.L. Charsley, in: D. Dollimore (Ed.), Proceedings of the 2nd European Symposium on Thermal Analysis and Calorimetry, Heyden, 1981, p. 315.

    Depositing User: Briony Heyhoe
    Date Deposited: 07 Jun 2007
    Last Modified: 15 Sep 2010 12:57
    URI: http://eprints.hud.ac.uk/id/eprint/199

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