Ti/CuO and Ti/CuO/Cellulose Nitrate Nanothermites: An Early Insight into Their Combustion Mechanism

被引:0
|
作者
Polis, Mateusz [1 ,2 ]
Stolarczyk, Agnieszka [2 ]
Szydlo, Konrad [1 ,2 ]
Jarosz, Tomasz [2 ]
Procek, Marcin [3 ]
Slawski, Sebastian [4 ]
Golofit, Tomasz [5 ]
Lisiecka, Barbara [1 ]
Hawelek, Lukasz [6 ]
机构
[1] Lukasiewicz Res Network Inst Ind Organ Chem, Explos Tech Res Grp, PL-42693 Krupski Mlyn, Poland
[2] Silesian Tech Univ, Dept Phys Chem & Technol Polymers, PL-44100 Gliwice, Poland
[3] Silesian Tech Univ, Dept Optoelect, 2 Krzywoustego Str, PL-44100 Gliwice, Poland
[4] Silesian Tech Univ, Dept Theoret & Appl Mech, 18A Konarskiego Str, PL-44100 Gliwice, Poland
[5] Warsaw Univ Technol, Fac Chem, Noakowskiego 3, PL-00664 Warsaw, Poland
[6] Lukasiewicz Res Network, Inst Nonferrous Met, 5 Sowinskiego Str, PL-44100 Gliwice, Poland
关键词
nanothermite; energetic material; combustion; ignition; REACTION PROPAGATION; AL/CUO; PERFORMANCE; OXIDIZER; IGNITION; AL/MOO3;
D O I
10.3390/en17174333
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Most nanothermite compositions utilise Al as a fuel, due to its low cost, high reactivity and availability. Nevertheless, aluminothermites exhibit high ignition temperature and low active metal content. In this paper, the combustion behaviour of Ti/CuO and Ti/CuO/NC systems is discussed. The compositions were prepared with a wet-mixing/sonication process followed by an electrospray technique and were examined in terms of their mechanical and radiation sensitivity, energetic parameters and morphology. The results exhibited a strong correlation between equivalence ratio and energetic parameters. The performed tests showed the crucial impact the addiction of the chosen energetic binder on the morphology and performance of the compositions. The results of our experiments indicate the occurrence of a different combustion mechanism than the one observed for Al-based nanothermites. In our case, the combustion mechanism involves a limitation by the diffusion of the oxidising agent and its decomposition products into the reactive fuel core.
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页数:51
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