Investigation of Ultrafast Condensed Phase Reactions Between Nanopowders
Abstract
The specific research objectives of this grant were on mathematical modeling of ultrafast condensed phase reactions with and without pressure gradients generated by the reaction and on investigation of combustion characteristics of reacting systems consisting of nanopowders. One-dimensional mathematical models were derived and solved numerically. These models predict qualitatively combustion from propagation in such reacting systems. It was also found that surface functionalization of aluminum nanopowders significantly slows down its reaction with moisture. It was demonstrated experimentally that coated aluminum nanopowders with oleic acid or silanes react even better with copper, molybdenum, and tungsten oxides. This interesting discovery can be explained by more ultimate mixing of heterogeneous reactants. In addition, results on characterization of nanopowders and mixing of nanoreactants are presented as well.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2004
- Accession Number
- ADA425387
Entities
People
- Jan A. Puszynski
Organizations
- South Dakota School of Mines and Technology