Emission Spectroscopy of the Combustion Flame of Aluminium/Copper Oxide Thermite
| Autor: | Volker Weiser, Evelin Roth, Angelika Raab, Stefan Kelzenberg, Sebastian Knapp |
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| Přispěvatelé: | Publica |
| Rok vydání: | 2018 |
| Předmět: |
Copper oxide
Materials science thermite 010304 chemical physics General Chemical Engineering chemistry.chemical_element Thermite 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Combustion 01 natural sciences UV / VIS-spectroscopy chemistry.chemical_compound Ultraviolet visible spectroscopy chemistry Chemical engineering Aluminium emission 0103 physical sciences Emission spectrum 0210 nano-technology combustion |
| Zdroj: | Propellants, Explosives, Pyrotechnics. 44:9-17 |
| ISSN: | 1521-4087 0721-3115 |
| DOI: | 10.1002/prep.201800235 |
| Popis: | The combustion process of stoichiometric aluminium/copper(II)oxide thermite was experimentally investigated in an optical bomb under inert atmosphere (N-2) 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 Cu-2 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. |
| Databáze: | OpenAIRE |
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