Differential thermal analysis and temperature profile analysis of pyrotechnic delay systems: mixtures of tungsten and potassium dichromate |
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| Authors: | EL Charsley MC Ford Diane E Tolhurst S Baird-Parker T Boddington PG Laye |
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| Institution: | Consultancy Service, Stanton Redcroft, Copper Mill Lane, London SW17 OBN Gt. Britain;Department of Physical Chemistry, The University, Leeds LS2 9JT Gt. Britain |
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| Abstract: | The self-propagating combustion reaction between tungsten and potassium dichromate has been studied by differential thermal analysis and temperature profile analysis. Two reaction stages have been distinguished in the combustion where the rate of temperature rise is ? 105 K min?1: in the first potassium dichromate is reduced by tungsten to form potassium chromate and in the second stage the potassium chromate reacts with more tungsten to form potassium tungstate and chromic oxide. |
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