Emission Spectroscopy of the Combustion Flame of Aluminium/Copper Oxide Thermite

The combustion process of stoichiometric aluminium/copper(II)oxide thermite was experimentally investigated in an optical bomb under inert atmosphere (N2) and ambient pressure. The reaction zone was monitored with UV/VIS emission spectroscopy and a colour high‐speed camera. The emission spectra were...

Full description

Saved in:
Bibliographic Details
Published in:Propellants, explosives, pyrotechnics explosives, pyrotechnics, 2019-01, Vol.44 (1), p.9-17
Main Authors: Knapp, Sebastian, Kelzenberg, Stefan, Raab, Angelika, Roth, Evelin, Weiser, Volker
Format: Article
Language:English
Subjects:
Aluminum
Atmospheric models
Background radiation
Combustion
Copper
Copper oxides
Emission
Emission analysis
Emission spectra
Emission spectroscopy
Emitters
Inert atmospheres
Pollution monitoring
Pressure
Spectrum analysis
Thermite
UV/VIS-spectroscopy
Vapor phases
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The combustion process of stoichiometric aluminium/copper(II)oxide thermite was experimentally investigated in an optical bomb under inert atmosphere (N2) and ambient pressure. The reaction zone was monitored with UV/VIS emission spectroscopy and a colour high‐speed camera. The emission spectra were analysed by modelling of the background radiation and the characteristic emission of all molecular emitters in the reaction of Al/CuO. Based on this, the particles′ surface and gas phase temperature, the emissivity and the radiation of energy was determined by a non‐linear least squares fit between experimental and modelled spectra. This work presents the first modelling of the diatomic band system of Cu2 and CuO. The results obtained can help to understand the underlying processes in thermite combustion and the influence of radiation processes in modelling the combustion of thermite mixtures.
ISSN:0721-3115
1521-4087
DOI:10.1002/prep.201800235