This article is cited in 18 papers

Combustion-front microstructure in heterogeneous gasless media (using as an example the 5Ti + 3Si system)

A. G. Merzhanov^a, A. S. Mukasyan^a, A. S. Rogachev^a, A. E. Sytschev^a, S. Hwang^b, A. Varma<sup>b

a</sup> Institute of Structural Macrokinetics, Russian Academy of Sciences, 142432, Chernogolovka
^b University of Notre Dame, South Bend, Indiana

Abstract: A new experimental method for studying the propagation of a gasless combustion wave using high-speed microvideo recording, computer recording, and processing of video records allowed conditions of existence of a microheterogeneous combustion regime to be determined. A combustion wave propagates chaotically by jumps through samples with porosity of 45–50% and higher. During the delay between the jumps, the next sample layer (or unit cell) is heated. The heating-zone size is close to the sample particle size ($\sim$100 $\mu$m). For denser samples, this process is described by the classical equations of propagation of a homogeneous combustion wave. In this case, the sizes of the heating and reaction zones are much larger than the particle size.

UDC: 536.46:621.762

Received: 07.12.1995
Accepted: 10.06.1996

 English version: Combustion, Explosion and Shock Waves, 1996, 32:6, 655–666

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