Development of on-chip initiation and measurement method for flame velocity self-propagating of thermites [abstract]

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Development of on-chip initiation and measurement method for flame velocity self-propagating of thermites [abstract]

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/721

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dc.contributor.author Apperson, Steven J., 1982- en
dc.date.accessioned 2009-03-18T19:41:37Z en
dc.date.available 2009-03-18T19:41:37Z en
dc.date.issued 2005 en
dc.identifier.uri http://hdl.handle.net/10355/721 en
dc.description Abstract only available en
dc.description Faculty Mentor: Dr. Shubhra Gangopadhyay, Electrical &Computer Engineering en
dc.description.abstract Electrically triggered detonation of patterned energetic materials were performed to determine the propagation velocity of nano-scale thermite composites comprising of Copper oxide (CuO) and Bismuth oxide (Bi2O3) with Aluminum (Al). The burn rates were measured by monitoring the change of resistance of a thin Platinum film, deposited on a glass substrate by sputter coating, due to detonation of the thermite. A high time resolution was attained by using a NI Labview based sampling at 1 MHz frequency. We have measured burn rates as high as 800m/sec for CuO-Al nanoparticle dispersions using this method. For Bi2O3-Al nanoparticle dispersion the highest burn rate is measured to be 155m/s. The method provides a repeatable way of flame velocity measurement in a laboratory scale for characterization of nanoenergetic materials at a much lower cost than other systems prior to this. Most have used very expensive high-speed cameras for the same task. The detonation initiation aspect of the system deals with the fabrication of a chip with a low-resistance thin-film heater, suitable for initiation of the self-propagating thermite reaction. This system achieved on-chip ignition of nano-scale thermites with a supply voltage as low as 3V. The approach is novel because thermites typically require high-power supply to initiate self-propagating reactions. Thermite materials can be used in primers for detonating high-explosives, micro-thruster devices, smart ammunitions, smart bombs, power generations, etc. and in all these applications, initiation of a thermite reaction is one of the major key components. The on-chip thin film heater, like the speed measurement component will serve the purpose and is a low-cost alternative and can be easily produced on a large scale. en
dc.language.iso en_US en
dc.publisher University of Missouri--Columbia. Office of Undergraduate Research en
dc.relation.ispartof 2005 Undergraduate Research and Creative Achievements Forum (MU) en
dc.subject nano-scale thermite composites en
dc.subject burn rate en
dc.subject electrically triggered detonation en
dc.title Development of on-chip initiation and measurement method for flame velocity self-propagating of thermites [abstract] en
dc.type Abstract en
dc.contributor.meetingname Undergraduate Research and Creative Achievements Forum (2005 : University of Missouri--Columbia) en
dc.contributor.corporatename University of Missouri-Columbia. Office of Undergraduate Research en
dc.relation.ispartofcommunity University of Missouri-Columbia. Office of Undergraduate Research. Undergraduate Research and Creative Achievements Forum


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