Air-Augmented Combustion of Boron and Boron-Metal Alloy
Abstract
High speed cinematography was used to study the combustion characteristics of powdered boron, and of compounds of boron and magnesium, lithium, or aluminum, all of which were LiF-doped or undoped. An optical burner apparatus was used operating on CO-O2-air at 5 to 40 psia and at several temperatures. Ignition delay and burning times were derived from the film tracks of burning particles. The boron-metal compounds gave ignition delay times in the range of 0-8 msec and burning times of 2-15 msec, both considerably shorter than the corresponding times for elemental boron. X-ray diffraction analyses of the residues collected in the exhaust from MgB12 and LiB2 combustion indicated a high degree of oxidation. Wet chemical analysis of the MgB12 residue confirms the maximum combustion efficiency attainable.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1971
- Accession Number
- AD0886550
Entities
People
- Henry T. -s. Hsia