The effect of additives on the burning rate of silicon-calcium sulfate pyrotechnic delay compositions

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dc.contributor.author Tichapondwa, Shepherd Masimba
dc.contributor.author Focke, Walter Wilhelm
dc.contributor.author Del Fabbro, Olinto
dc.contributor.author Labuschagne, George
dc.date.accessioned 2016-12-19T08:04:30Z
dc.date.issued 2016-08
dc.description.abstract The effect of fuel particle size as well as the influence of inert and reactive additives on the burning rate of the Si-CaSO4 composition was evaluated. The burning rate decreased with increase in fuel particle size, while the enthalpy remained constant. Addition of fuels to the base composition increased the burning rate, with an increase from 12.5 mm s-1 to 43 mm s-1 being recorded upon 10 wt. % Al addition. Ternary mixtures of silicon, calcium sulfate and an additional oxidizer generally decreased the burning rate, with the exception of bismuth trioxide where it increased. The Si-CaSO4 formulation was found to be sensitive to the presence of inert material, addition of as little as 1 wt. % fumed silica stifled combustion in the aluminium tubes. en_ZA
dc.description.department Chemical Engineering en_ZA
dc.description.embargo 2017-08-31
dc.description.librarian hb2016 en_ZA
dc.description.sponsorship This work is based on the research supported in part by AELMining Service and by the National Research Foundation of SouthAfrica (Grant 83874). en_ZA
dc.description.uri http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1521-4087 en_ZA
dc.identifier.citation Tichapondwa, SM, Focke, WW, Del Fabbro, O & Labuschagne, G 2016, 'The effect of additives on the burning rate of silicon-calcium sulfate pyrotechnic delay compositions', Propellants, Explosives, Pyrotechnics, vol. 41, no. 4, pp. 732-739. en_ZA
dc.identifier.issn 0721-3115 (print)
dc.identifier.issn 1521-4087 (online)
dc.identifier.other 10.1002/prep.201500243
dc.identifier.uri http://hdl.handle.net/2263/58425
dc.language.iso en en_ZA
dc.publisher Wiley en_ZA
dc.rights © 2016 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim. This is the pre-peer reviewed version of the following article: The effect of additives on the burning rate of silicon-calcium sulfate pyrotechnic delay compositions in Propellants, Explosives, Pyrotechnics, vol. 41, no. 4, pp. 732-739, 2016. doi : 10.1002/prep.201500243. The definite version is available at : http://onlinelibrary.wiley.comjournal/10.1002/(ISSN)1521-4087. en_ZA
dc.subject Silicon en_ZA
dc.subject Calcium sulfate en_ZA
dc.subject Particle size en_ZA
dc.subject Additives en_ZA
dc.subject Pyrotechnics en_ZA
dc.title The effect of additives on the burning rate of silicon-calcium sulfate pyrotechnic delay compositions en_ZA
dc.type Postprint Article en_ZA


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