Combustion Wave Microstructure in Gas-Solid Reaction Systems:Experiments and Theory
- 1 January 1997
- journal article
- research article
- Published by Taylor & Francis in Combustion Science and Technology
- Vol. 123 (1) , 165-184
- https://doi.org/10.1080/00102209708935626
Abstract
Using experimental techniques developed previously by the authors, the combustion wave microstructure in a gas-solid reaction system (specifically, the Ti-N2 system) was studied. A quantitative analysis of the location, shape and propagation of the combustion wave front was carried out. The relay-race mechanism of combustion wave propagation was observed for a wide range of experimental conditions. In conjunction with the experiments, a micro-heterogeneous cell model was developed that simulates the local propagation of the combustion wave in a random porous medium. For both experiments and calculations, the initial organization of the reaction medium (porosity, particle size, etc.) was found to affect the heterogeneity of the combustion wave. The fluctuations of the combustion wave, in terms of both shape and propagation, increased monotonically with increasing heterogeneity of the reaction medium (i.e., larger porosity or particle size).Keywords
This publication has 13 references indexed in Scilit:
- Combustion synthesis of advanced materials: Part I. Reaction parametersPublished by Elsevier ,2000
- Combustion Wave Microstructure in Heterogeneous Gasless SystemsCombustion Science and Technology, 1996
- On the Mechanism of Structure Formation During Combustion Synthesis of Titanium SilicidesCombustion Science and Technology, 1995
- Dynamics of phase forming processes in the combustion of metalgas systemsCombustion and Flame, 1993
- A kinetic model for metal + nonmetal reactionsMetallurgical Transactions A, 1992
- A simple model for heat conduction in heterogeneous materials and irregular boundariesInternational Communications in Heat and Mass Transfer, 1992
- The mechanism of synthesis of titanium nitride by self-sustaining reactionsJournal of Materials Research, 1990
- Self-propagating exothermic reactions: The synthesis of high-temperature materials by combustionMaterials Science Reports, 1989
- Propagation of the combustion zone in melting condensed mixturesCombustion, Explosion, and Shock Waves, 1977
- Thermal contact conductanceInternational Journal of Heat and Mass Transfer, 1969