Research on physicochemical durability based and the effect of Al/Mg ratio on the infrared emission characteristics of the Al/Mg/PTFE/PAC/HD-70 composition
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https://doi.org/10.54939/1859-1043.j.mst.IPE.2024.168-174Keywords:
The IR decoy composition; Al/Mg mixture; Infrared radiation intensity.Abstract
Physicochemical stability and infrared emission are important characteristics of infrared-emitting pyrotechnics. This study focuses on evaluating the mechanical strength of pyrotechnic systems when using binders: nitrocellulose (NC), shellac, viton, poly acrylate (PAC) plasticized with HD-70 energy plasticizer system (HD-70 is a mixture of triethylene glycol dinitrate (TEDGN) and diethylene glycol dinitrate (DEDGN) energy plasticizers in a ratio of 70/30) and the effect of the Al/Mg ratio on infrared emission. The research results show that the PAC/HD-70 binder system has good chemical compatibility with the Al/Mg/PTFE base system. At the same time, the binder bars using the PAC/HD-70 binder system have significantly higher compressive strength than when using other binder/HD-70 systems. In addition, as the Al content in the Al/Mg mixture increased, the infrared radiation intensity in both radiation bands from (1,65 ÷ 2,55) µm and (3,6 ÷ 5,3) µm increased accordingly. It is noteworthy that the increase in radiation intensity in the α region (3,6 ÷ 5,3) µm is insignificant compared to the β region (1,65 ÷ 2,55) µm.
References
[1]. Nguyễn Văn Tính, Trần Quang Phát, “Cơ sở hoả thuật”, Nhà xuất bản Quân đội nhân dân, (2010).
[2]. T. Q. Phát, N. V. Giao, N. Đ. Hà, H. N. Minh, “Nghiên cứu lựa chọn chất kết dính trong thành phần thuốc nổ nhiệt áp dùng cho đạn ĐNA-7V”, Tạp chí Nghiên cứu KH&CN quân sự, (2020).
[3]. Amir Elsaidy, Hesman Ramzy Tantawy, “The Infrared Spectra of Customized Magnesium/Teflon/Viton (MTV) Decoy Flares to Thermal Signature of Jet Engine”, International Conference on Aerospace Sciences and Aviation Technology, Vol. 17, pp. 1-12, (2017). DOI: https://doi.org/10.21608/asat.2017.22484
[4]. Hawass, Ahmed, and Mahmoud Awad, “Binary Mixture Based on Epoxy for Spectrally Adapted Decoy Flare”, Adv. J. Chem.-Section A, (2020).
[5]. E. C. Koch, “Pyrotechnic countermeasures: II. Advanced aerial infrared countermeasures”, Propellants, Explosives, Pyrotechnics, vol. 31, pp. 3-19, (2006). DOI: https://doi.org/10.1002/prep.200600001
[6]. Koch, Ernst-Christian, “Metal-fluorocarbon based energetic materials”, John Wiley & Sons, (2012). DOI: https://doi.org/10.1002/9783527644186
[7]. Douda, Bernard E, “Genesis of infrared decoy flares: the early years from 1950 into the 1970s”, DTIC Document, (2009).
[8]. Trung, Toan N., and Nhung NT Cam, “Effects of Mg-Al alloy powder on the combustion and infrared emission characteristics of the mg-al/ptfe/viton composition”, Defence science journal 70.6, pp. 590-595, (2020). DOI: https://doi.org/10.14429/dsj.70.15522
[9]. Wang, Yi-kai, et al, “Effect of Mg-Al ratio on the combustion and infrared radiation properties of Al-Mg alloy/PTFE composition”, Journal of Physics: Conference Series, Vol. 2478, No. 3, IOP Publishing, (2023). DOI: https://doi.org/10.1088/1742-6596/2478/3/032023
[10]. Standardization Argeement STANAG 4147, “Chemical compability of ammunition componients with explosives (non-nuclear applications)”, NATO, (2001).
[11]. S. Elbasuney, et al., “Multi-component nanocomposite infrared flare with superior infrared signature via synergism of nanothermite and reduced graphene oxide”, Journal of Materials Science: Materials in Electronics, Vol. 31, No. 14, pp. 11520-11526, (2020). DOI: https://doi.org/10.1007/s10854-020-03699-8
[12]. Fisenko, A. I., S. N. Ivashov, “Determination of the true temperature of emitted radiation bodies from generalized Wien's displacement law”, Journal of Physics D: Applied Physics, Vol. 32 (22), 2882, (1999). DOI: https://doi.org/10.1088/0022-3727/32/22/309
