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  • Author(s):
    Christopher E. Shuck, Alexander S. Mukasyan
    Abstract:

    Stochastically structured Ni/Al reactive nanocomposites (RNCs) were prepared using short-term high-energy ball milling. Several milling times were utilized to prepare RNCs with differing internal nanostructures. These internal structures were quantitatively and statistically analyzed by use of serial focused ion beam sectioning coupled with 3D reconstruction techniques. The reaction kinetics were analyzed using the electrothermal explosion technique for each milling condition. It is shown tha…

    Date Published:
    2017
    Record Visibility:
    Public
  • Author(s):
    Joshua M. Pauls, Christopher E. Shuck, Alexander S. Rogachev, Alexander S. Mukasyan
    Abstract:

    Reactive Ni/Al composite particles with different internal microstructures were fabricated by ball milling (BM). The propagation of gasless combustion waves through the compacted composite particle media was investigated using high-speed microscope video recording (HSMVR), with a resolution of 10 μm/pixel and 21.25 μs/frame. The microstructural combustion-wave characteristics, including hesitation time, propagation step size, instantaneous velocity, intraparticle reaction time, and average co…

    Date Published:
    2017
    Record Visibility:
    Public