Advertisement

Powder Metallurgy and Metal Ceramics

, Volume 53, Issue 5–6, pp 269–274 | Cite as

Generation and Superposition of Concentration and Heat Waves Under Exothermic Reactions in Powder Systems

  • V. P. Solntsev
  • T. A. Solntseva
THEORY AND TECHNOLOGY OF SINTERING, THERMAL AND THERMOCHEMICAL TREATMENT
  • 52 Downloads

The superposition of reaction waves, leading to energy concentration in local regions, is revealed in studying the thermal kinetics of interaction in mixtures with exothermic reactions during contact melting. The local energy relaxes through spontaneous emission of charged particles. This influences the thermal electromotive force and allows the dynamics of reaction wave interaction to be followed in the process. In these cases, synthesis and reaction sintering are uncontrolled.

Keywords

powder system exothermic reaction concentration and heat waves superposition synthesis sintering 

References

  1. 1.
    V. V. Skorokhod, V. P. Solntsev, and G. A. Frolov, “Implementing the ideas of nonequilibrium thermodynamics to solve problems in developing new self-assembly materials and processes for extreme space applications,” in: Proc. 2nd Int. Sci. Conf. Space Applications: Fundamental and Applied Problems (November 18–21, 2003) [in Russian], Izd. Mosk. Gos. Tekh. Univ., Moscow (2005), Part 3, pp. 39–48.Google Scholar
  2. 2.
    V. P. Solntsev and V. V. Skorokhod, “Theory and practice of developing self-assembling materials,” in: Proc. 5th Int. Symp. FiPS-08 Applied Synergetics in Nanotechnologies [in Russian], Mosk. Aviat. Tekhnol. Inst., Moscow (2008), pp. 234–237.Google Scholar
  3. 3.
    V. P. Solntsev, V. V. Skorokhod, V. L. Baranov, and T. A. Solntseva, “On mechanism of spontaneous creation of space–time assembled structures in reacting powder systems in contact melting,” Dop. Nats. Akad. Nauk Ukrainy, No. 3, 105–111 (2010).Google Scholar
  4. 4.
    V. P. Solntsev, V. V. Skorokhod, and T. A. Solntseva, “Collective processes in liquid-phase reactive sintering,” Powder Metall. Met. Ceram., 49, No. 3–4, 141–146 (2010).CrossRefGoogle Scholar
  5. 5.
    A. G. Merzhanov and E. N. Rumanov, “Physics of reaction waves,” Rev. Mod. Phys., 71, No. 4, 1173–1211 (1999).CrossRefGoogle Scholar
  6. 6.
    V. P. Solntsev, V. V. Skorokhod, G. A. Frolov, et al., “Nonlinear dynamics of reaction processes during one-sided heating of different physicochemical heterogeneous powder systems,” in: Current Issues of Physical Materials Science. Series Physicochemical Fundamentals of Powder Technology (Collected Papers) [in Russian], Inst. Probl. Materialoved. Nats. Akad. Nauk Ukrainy, Kiev (2008), Issue 17, pp. 78–82.Google Scholar
  7. 7.
    V. V. Skorokhod and V. P. Solntsev, “On dynamic stability in reacting powder systems,” Dop. Nats. Akad. Nauk Ukrainy, No. 11, 74–80 (2001).Google Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Frantsevich Institute for Problems of Materials ScienceNational Academy of Sciences of UkraineKievUkraine

Personalised recommendations