Molecular Beam/MS of Silane-Hydrocarbon Oxidation in a Discharge-Flow Reactor

摘要

Recent results are presented from low-pressure DFR/MB/MS studies of Cl-atom initiated oxidation of He-diluted silane, silane-methane, and silane-ethylene mixtures. Research objectives have been to obtain direct evidence of free radical and molecular chain intermediates, and to determine if reaction pathways for simultaneous oxidation of silane and simple hydrocarbons (HC's) interact significantly. From the standpoint of scramjet (supersonic combustion ramjet) propulsion we need to understand the effects of premixing (vs. staged injection) of pyrophoric ignition aids, such as silane , with much lower reactivity HC's.