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

被引：19

作者：

Knapp, Sebastian ^{[1
]}

Kelzenberg, Stefan ^{[1
]}

Raab, Angelika ^{[1
]}

Roth, Evelin ^{[1
]}

Weiser, Volker ^{[1
]}

机构：

[1] Fraunhofer Inst Chem Technol ICT, Energet Syst, Joseph von Fraunhofer Str 7, D-76327 Pfinztal, Germany

来源：

PROPELLANTS EXPLOSIVES PYROTECHNICS | 2019年 / 44卷 / 01期

关键词：

Emission; Thermite; Combustion; UV; VIS-spectroscopy; ROTATIONAL ANALYSIS; ALUMINUM; SYSTEM; LASER; NANO; CUO; NANOTHERMITES; PERFORMANCE; PRESSURE; IGNITION;

D O I：

10.1002/prep.201800235

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

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.

引用

页码：9 / 17

页数：9

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