Accession Number : AD0486331

Title :   GAS-PHASE CHEMISTRY OF REENTRY.

Descriptive Note : Technical documentary rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS

Personal Author(s) : Heicklen, Julian

Report Date : MAY 1966

Pagination or Media Count : 71

Abstract : Combustion reactions associated with reentry are reviewed. First, clean-air chemistry is considered. Then, the reactions for graphite, hydro-clean-air chemistry is considered. Then, the reactions for graphite, hydro-carbon, and fluorocarbon heat shields are developed. The teneral approach is to simplify the scheme and to consider classes of reactions for various types of species. Initiation, transfer, and termination reactions for electronically excited molecules, free radicals, and charged particles are discussed for each system. (Author)

Descriptors :   *CARBON), (*REFRACTORY COATINGS, (*GASES, REACTION KINETICS), COMBUSTION, THERMOSETTING PLASTICS, HEAT SHIELDS, ABLATION, HIGH TEMPERATURE, POLYMERS, OXIDATION, PYROLYTIC GRAPHITE, HYDROCARBONS, FLUORINE COMPOUNDS, ENERGY, STABILITY, FREE RADICALS, CHARGED PARTICLES, ATMOSPHERE ENTRY, SUBLIMATION, LOW TEMPERATURE, ENTHALPY, NITROGEN, AIR, EXCITATION.

Subject Categories : Coatings, Colorants and Finishes

Distribution Statement : APPROVED FOR PUBLIC RELEASE