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Browsing Chemical Engineering by Author "Kelly, Cheryl"
Now showing items 1-5 of 5
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Tichapondwa, Shepherd Masimba; Focke, Walter Wilhelm; Del Fabbro, Olinto; Kelly, Cheryl (Wiley, 2015-08)Chemical time delay detonators are used to control blasting operations in mines and quarries. Slow burning Si-BaSO4 pyrotechnic delay compositions are employed for long time delays. However, soluble barium compounds may ...
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Tichapondwa, Shepherd Masimba; Focke, Walter Wilhelm; Gisby, John; Del Fabbro, Olinto; Kelly, Cheryl (Taylor and Francis, 2016-07)Slow burning Si-BaSO4 pyrotechnic delay compositions are employed commercially for intermediate to long time delays. However, there is very little information on this composition available in open literature. The reactivity ...
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Montgomery, Yolandi C.; Focke, Walter Wilhelm; Kelly, Cheryl (Wiley, 2017-11)A predictive numerical model was implemented for a time delay based on the Si+Pb3O4 system. The reaction kinetic parameters were estimated by comparing predicted surface temperature profiles with experimental data acquired ...
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Montgomery, Yolandi C.; Focke, Walter Wilhelm; Kelly, Cheryl (Wiley, 2017-10)The burning rates of a slow reacting Mn+Sb2O3 and a fast reacting Si+Pb3O4 time delay composition, filled into lead tubes, were measured with an infrared camera, with two thermocouples and in the form of a fully assembled ...
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Montgomery, Yolandi C.; Focke, Walter Wilhelm; Atanasova, Maria T.; Del Fabbro, Olinto; Kelly, Cheryl (Wiley, 2016-10)The binary Mn + Sb2O3 pyrotechnic composition was investigated for mining detonator time delay applications. EKVI thermodynamic modelling predicted two maxima in the adiabatic reaction temperature. The local maximum, at ...
Now showing items 1-5 of 5