Swanepoel, DarrenDel Fabbro, OlintoFocke, Walter WilhelmConradie, Corrie2011-02-182011-02-182010-03Swanepoel, D, Del Fabbro, O, Focke, WW & Conradie, C 2010, 'Manganese as fuel in slow-burning pyrotechnic time delay compositions', Propellants, Explosives, Pyrotechnics, vol. 35, no. 2, pp. 105-113. [http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1521-4087/issues]0721-3115e: 1521-408710.1002/prep.200900005http://hdl.handle.net/2263/15871Manganese metal was evaluated as a fuel for slow-burning delay compositions press-filled in aluminium or compaction-rolled in lead tubes. Oxides of antimony, bismuth, copper, manganese and vanadium were considered as oxidants. Measured burn rates for binary mixtures varied between 5 and 22 mm s 1 but slower burning ternary and quaternary compositions were also found. The addition of fumed silica to the Mn/MnO2 system had little effect on the propagation rate but a low level addition of hollow glass sphere significantly reduced the burn rate. Mn MnO2 mixtures showed reliable burning over a wide stoichiometric range. In this system the fuel and the oxidant share a common metal. They combine to form the more stable intermediate oxide (MnO) releasing considerable quantities of heat in the process.en© 2010 Wiley-VCH Verlag GmbH&Co. KGaA, Weinheim. This is the pre-peer reviewed version of the following article: Swanepoel, D, Del Fabbro, O, Focke, WW & Conradie, C 2010, 'Manganese as fuel in slow-burning pyrotechnic time delay compositions', Propellants, Explosives, Pyrotechnics, vol. 35, no. 2, pp. 105-113, which has been published in final form at www.interscience.wiley.com.Antimony oxideFumed silicaManganesePyrotechnicsTime delayManganeseAluminium tubesTubes -- ThermodynamicsPreprint Article