Electron Quenchant Literature
Abstract
Data on the high temperature behavior of molecules which have been previously identified as effective electron quenchants has been collected. Attention has been directed to the physical, chemical, thermodynamic and kinetic data on the oxides/acids of rhenium, molybdenum, tungsten and boron. The electron affinities of these acids, about 100 kcal/gmol, are the highest values of any gaseous species in the literature. An important mode of electron capture involves the process of dissociative-attachment. The existence of two negative ions in H/O/metal systems appears to be common. The vapor pressure of HBO2, n.b. p. 1390K, is too low to volatilize sufficient boric acid into a reentry boundary layer at high altitudes. It is suggested that more volatile boron-containing materials, such as cyclic B-N-H compounds, can be incorporated in a low temperature ablator.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1971
- Accession Number
- AD0751287
Entities
People
- G. R. Smookler
- W. G. Browne
Organizations
- General Electric