Depending on stoichiometry, MTV displays varying burn rates and yields different reactions products. With constant Viton-content the burn rate rises exponentially with rising magnesium content. Nevertheless the burn rate of MTV, as is the case with many metallized pyrotechnic compositions is strongly dependent on the specific surface area of the metal fuel, that are particle morphology and dimensions. Generally magnesium powder having a high specific surface area will exhibit a higher burn rate than those having a smaller specific area. The main reactions products for MTV at Mg contents between 30 and 65 wt% magnesium fluoride, soot and vaporized magnesium .
For aerial decoy flares magnesium rich compositions are used with Mg contents between 55 and 65 wt%. At these stoichiometries only a part of the applied Mg reacts with the PTFE. The surplus Mg is vaporised and reacts with the atmospheric oxygen; likewise the thermally excited soot reacts with the atmospheric oxygen (Eq. 2 & 3)
Although missile development has brought up seeker countermeasures against MTV flares there are still numerous missile systems fielded worldwide based on 1st Generation technology. Hence MTV flares are still not obsolete in fighting unknown threats. Together with advanced spectral flares (see countermeasures) they are part of the so-called "cocktail solution".
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