IDENTIFICATION OF EXHAUST SPECIES FROM THE COMBUSTION OF LM AND LMH FUELS.
Abstract
This is the second report of a twelve-month research program being conducted to study the metastable chemical species produced in boron fueled rocket plumes. Experimental studies of boron-fueled, air-augmented propellant systems indicate that metastable species are formed in the condensate fraction of the propellant stream. X-ray and differential scanning calorimetric analyses of the condensate fraction indicate the presence of one or more metastable intermediates. X-ray analysis shows a clearly defined crystallographic species exists in addition to the expected boron oxide and boron nitride. Differential scanning calorimetric analysis of the condensates formed during combustion of boron fuels show a relatively complex exothermic behavior between 298 and 1000 C. This indicates the presence of one or more species that have been quenched in a metastable condition. The infrared spectra of the plume emission for pentaborane fueled studies show chemiluminescence in the 5.3 - 5.8 micron region of the infrared. Similar chemiluminescence was not observed in the infrared for boron slurries, possibly indicating a different reaction mechanism. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1967
- Accession Number
- AD0811156
Entities
People
- R. E. Knight
- R. W. Evans
- W. H. Mclain
Organizations
- Denver Research Institute