Search criteria:

List of files deposited in CurateND that match your search criteria

• 1

  Article

  SPARK PLASMA SINTERING AND SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS OF ULTRA-HIGH TEMPERATURE CERAMICS Hf – C
  

  Author(s):

  V. S. Buinevich, A. A. Nepapushev, G. V. Trusov, D. O. Moskovskikh, A. S. Rogachev, A. S. Mukasyan

  Abstract:

  The future of the aerospace industry is directly related to the development and modernization of the heat-loaded components of hypersonic aircraft: jet engines, nose tips and sharp leading edges of the wings, which are required to withstand ultrahigh temperatures (above 2000°C) caused by aerodynamic heating. The greatest practical interest for the aerospace industry is centered around ultra-high temperature ceramics based on borides, nitrides, carbides, carbonitrides and double transition met…

  Date Published:

  2019-01

  Record Visibility:

  Public

• 2

  Article

  Kinetics and mechanism of mechanochemical synthesis of hafnium nitride ceramics in a planetary ball mill
  

  Author(s):

  L. C. Gallington, J. M. Pauls, T. Orlova, O. M. Miloserdova, N. V. Chapysheva, A. S. Rogachev, A. S. Mukasyan

  Abstract:

  Mechanochemical synthesis of hafnium nitride ceramic powder was accomplished through direct nitridation of hafnium particles in nitrogen atmosphere during high-energy milling in a planetary ball mill. The nitrogen content was measured and evaluated to determine the reaction kinetics for hafnium – nitrogen across a range of treatment durations. The observed reaction rates are notably faster than for conventional thermal treatment, and, for hafnium treated for 5 min in the ball mill, the onset …

  Date Published:

  2019-08

  Record Visibility:

  Public

• 3

  Article

  Crystallization of a Mechanically Activated CuTi Alloy
  

  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