Journal of Advanced Chemical Engineering

Spectral performance investigation of customized Magnesium/Teflon/Viton (MTV) decoy flares

2^nd International Conference on Advances in Chemical Engineering and Technology

November 16-17, 2017 | Paris, France

Amir Alsaidy

Military Technical College, Egypt

Posters & Accepted Abstracts: J Adv Chem Eng

Abstract:

Decoy flares are customized materials, which are capable of yielding thermal signature to interfere with infrared (IR) guided missile seekers. The flare thermal signature depends on the duration and intensity of the exothermal reaction and on the chemical nature of the combustion products. In this study, different decoy flares compositions based on Magnesium/Teflon/ Viton (MTV) (with fuel percentage ranging from 40:70 wt. %) were developed by granulation and subsequent pressing. The spectral performance of developed decoy flare formulations was conducted using (FT-MIR 1-6 µm) spectrophotometer. The flare thermal signature was characterized with two characteristic peaks over α band (2-3µm) and β band (3-5µm). These developed flares offered thermal signature with high emission intensity due to the formation of carbon soot and MgF2 as grey body and active IR emitter respectively. Quantification of these emitting species in the combustion flame was performed using the ICT thermodynamic code. MTV decoy flare with 65 wt % Mg offered the maximum intensity in α band and β band. This customized formulation offered the formation of MgF2 (molecular emitter) and C soot (grey emitter) at 42.4, and 8.8 wt % respectively. It is also offered 48 wt. % Mg fuel which would be oxidized in the flame and add much more heat with the formation of MgO (grey body). The characteristic intensity ratio θ (α/ β) was found to be ~1. This is manuscript would open the route for the development of customized decoy flares with tailored spectral performance.