Date of Award
Master of Science in Chemical Engineering - (M.S.)
Chemical, Biological and Pharmaceutical Engineering
Edward L. Dreyzin
Robert Benedict Barat
Metallic reactive powders are widely used as solid fuels, pyrotechnic materials, and components of enhanced blast explosives. Metals are attractive because of their high combustion enthalpies and temperatures. Quantitative descriptions of the combustion processes and mechanisms for both pure metal and composite particles are also desired for their proper implementation in specific applications. Among reactive metals, Al is used most widely and its combustion has been studied extensively. A recently developed experimental setup using laser-ignited metal powders enabled one to record optical signatures for time-resolved combustion instances for 2-25 µm diameter aluminum particles burning in different atmospheres. Individual particle diameters are interpreted and emission signatures are correlated to determine the burn times. The current setup has been expanded to include three-color optical pyrometry and tracing characteristic molecular emission. Results for Al and novel Al-based composite materials burning in different oxidizing environments will be discussed.
Badiola, Carlo Francisco, "Combustion dynamics of individual reactive material particles" (2011). Theses. 107.