| Abstract [eng] |
A pyrotechnic composition is meant to describe at least two component containing heterogeneous solid mixture that is capable of reacting in a self-sustained exothermic reaction. Illuminating pyrotechnics stretches into a specific branch of such reactions where the chemical reaction produces exclusively strong electromagnetic radiation in comparison to other pyrotechnic reactions. The main two areas of practical use are VIS radiation for signalling and entertainment (fireworks, special effects) and IR for military countermeasures. In this work, three types of illuminating pyrotechnic compositions are explored. First, red flares with strontium and high content of Mg powder. Second, highly saturated blue color flames with copper. Third, blue strobes which produce intermittent combustion. In order to characterize such compositions, VIS emission spectra and light intensity were recorded during combustion, and later on, recalculated to specific luminous intensity, color saturation, dominant wavelength, CIE 1931 chromaticity coordinates. |
