Cars Spectroscopy of Propellant Flames
Abstract
Broadband coherent anti-stokes Raman scattering (CARS) spectra were obtained from both the reaction zone and postflame regions of CH(4)/N(2)O flames. The temperature and concentration profiles obtained from both N(2) and N(2)O flames were used to understand the elementary processes occurring in CH(2) /N(2) flames. In addition, N(2) and CO vibrational spectra were used to obtain concentration and temperature profiles by a least-square fit to model calculations. The results obtained were in accord with thermochemical calculations. In rich CH(4)/N(2)O flame previously unobserved, CARS spectra were obtained from pure rotational H(2) transitions. These H(2) spectra offer further opportunities for studying propellant systems. The characterization of CARS spectroscopy obtained from these studies was used to obtain initial CARS measurements from the reaction zone of nitramine composite propellant flames. These studies are only possible using a coherent, highly spatially, and temporally resolved spectroscopy such as CARS. These qualities of CARS which have been applied to the deflagration of propellants containing the explosive ingredients nitrocellulose and/or RDX can be used to study the decomposition and explosive reactions of other energetic materials in both the gas and solid phases.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1983
- Accession Number
- ADA134990
Entities
People
- L. E. Harris
Organizations
- United States Army Armament Research, Development and Engineering Center