Combustion dynamics of individual reactive material particles

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 um 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.

Name thesis:degree_name

Master of Science in Chemical Engineering - (M.S.)

Discipline thesis:degree_discipline

Chemical, Biological and Pharmaceutical Engineering

Year

2012

Author dc:creator

• Badiola, Carlo Francisco

Contributors dc:contributor

• Edward L. Dreyzin
• Robert Benedict Barat
• Mirko Schoenitz

• Metallic reactive powders
• Optical signatures
• Chemical Engineering

Repository record dc:identifier

https://digitalcommons.njit.edu/theses/107

OAI identifier oai:identifier

oai:digitalcommons.njit.edu:theses-1106