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  • Author(s):
    J. M. Pauls, N. F. Shkodich, A. S. Mukasyan
    Abstract:

    We report the results from the investigation of the mechanisms of self-sustained reaction in mechanically induced TiN/B nanocomposites. The exothermic displacement reaction, 3B + TiN → BN + TiB2, with an adiabatic reaction temperature of 1905 K, was initiated through two different means: localized thermal heating and mechanical stimulation by high-energy ball milling. Comprehensive studies strongly indicate that the chemical interaction in the system involves three main stages. Solid-state ma…

    Date Published:
    2019-04
    Record Visibility:
    Public
  • Author(s):
    D. Yu. Kovalev, S. G. Vadchenko, N. F. Shkodich, S. S. Rouvimov, A. S. Rogachev, M. I. Alymov
    Abstract:

    The atomic structure and amorphous-crystalline transition dynamics in CuTi metallic glass synthesized by high-energy ball milling have been studied. Using high-resolution transmission electron microscopy (HRTEM), it has been shown that the initial amorphous phase contains crystalline inclusions, which are up to 8 nm in size and may serve as crystallization centers. In contrast to the earlier studied amorphous CuTi alloys synthesized by melt spinning, the process of crystallization in the mech…

    Date Published:
    2018
    Record Visibility:
    Public