The effect of Si-Bi2O3 on the ignition of the Al-CuO thermite

Show simple item record Ilunga, K. Del Fabbro, Olinto Yapi, L. Focke, Walter Wilhelm 2011-02-18T09:11:56Z 2011-02-18T09:11:56Z 2011-01
dc.description.abstract The ignition temperature of the Al–CuO thermite was measured using DTA at a scan rate of 50 °C min−1 in a nitrogen atmosphere. Thermite reactions are difficult to start as they require very high temperatures for ignition, e.g. for Al–CuO thermite comprising micron particles it is ca. 940 °C. Itwas found that the ignition temperature is significantly reduced when the binary Si–Bi2O3 system is added as sensitizer. Further improvement is achieved when the reagents are nano-sized powders. For the composition Al+CuO+Si+Bi2O3 (65.3:14.7:16:4 wt.%), with all components nano-sized, the observed ignition temperature is ca. 613 °C and a thermal runaway reaction is observed in the DTA. en_US
dc.description.sponsorship Financial support from the THRIP programme of the Department of Trade and Industry and the National Research Foundation as well as African Explosives Limited is gratefully acknowledged. en_US
dc.identifier.citation Ilunga, K, Del Fabbro, O, Yapi, L & Focke, WW 2011, 'The effect of Si-Bi2O3 on the ignition of the Al-CuO thermite', Powder Technology, vol. 205, no. 1-3, pp. 97-102. [] en_US
dc.identifier.issn 0032-5910
dc.identifier.other 10.1016/j.powtec.2010.08.071
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.rights © 2010 Elsevier B.V. en_US
dc.subject Pyrotechnics en_US
dc.subject Thermite en_US
dc.subject Ignition temperature en_US
dc.subject Nanoparticles en_US
dc.subject.lcsh Nanochemistry en
dc.subject.lcsh Metal powders en
dc.subject.lcsh Nanosilicon en
dc.subject.lcsh Bismuth trioxide en
dc.subject.lcsh Aluminum-copper alloys -- Thermal properties en
dc.subject.lcsh Nanoparticles en
dc.title The effect of Si-Bi2O3 on the ignition of the Al-CuO thermite en_US
dc.type Postprint Article en_US

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