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

Author

Listed:
  • Mateusz Polis

    (Łukasiewicz Research Network—Institute of Industrial Organic Chemistry, Explosive Techniques Research Group, 42-693 Krupski Młyn, Poland
    Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 44-100 Gliwice, Poland)

  • Agnieszka Stolarczyk

    (Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 44-100 Gliwice, Poland)

  • Konrad Szydło

    (Łukasiewicz Research Network—Institute of Industrial Organic Chemistry, Explosive Techniques Research Group, 42-693 Krupski Młyn, Poland
    Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 44-100 Gliwice, Poland)

  • Tomasz Jarosz

    (Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 44-100 Gliwice, Poland)

  • Marcin Procek

    (Department of Optoelectronics, Silesian University of Technology, 2 Krzywoustego Str., 44-100 Gliwice, Poland)

  • Sebastian Sławski

    (Department of Theoretical and Applied Mechanics, Silesian University of Technology, 18A Konarskiego Str., 44-100 Gliwice, Poland)

  • Tomasz Gołofit

    (Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland)

  • Barbara Lisiecka

    (Łukasiewicz Research Network—Institute of Industrial Organic Chemistry, Explosive Techniques Research Group, 42-693 Krupski Młyn, Poland)

  • Łukasz Hawełek

    (Lukasiewicz Research Network—Institute of Non-Ferrous Metals, 5 Sowinskiego Str., 44-100 Gliwice, Poland)

Abstract

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.

Suggested Citation

  • Mateusz Polis & Agnieszka Stolarczyk & Konrad Szydło & Tomasz Jarosz & Marcin Procek & Sebastian Sławski & Tomasz Gołofit & Barbara Lisiecka & Łukasz Hawełek, 2024. "Ti/CuO and Ti/CuO/Cellulose Nitrate Nanothermites: An Early Insight into Their Combustion Mechanism," Energies, MDPI, vol. 17(17), pages 1-51, August.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:17:p:4333-:d:1467307
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