Abstract
Volume combustion synthesis in metal–metal systems (i.e., Ni-Al and Cu-Al) was investigated. Both thermocouple and infrared imaging techniques were used to study the temperature–time history of the process. It was found that in both systems, volume combustion starts at a temperature near the melting point of aluminum. For the Cu-Al mixture, the reaction essentially occurs uniformly along the sample body; whereas, for Ni-Al, propagation of a rapid reaction wave is typically observed. The characteristic temperature gradient of this wave is more than an order of magnitude lower and the velocity of propagation is even higher, as compared with a conventional combustion wave. An explanation of the observed results based on a new class of wave, the so-called virtual combustion wave, is given.
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REFERENCES
N. N. Semenov, Zur Theorie des Verbrennungsprozesses, Zhur. Fiz. B. 42, 571 (1929).
A. G. Merzhanov, V. V. Barzykin, V. G. Abramov, The theory of thermal explosion: From N. N. Semenov to present day, Chem. Phys. Rpt. 15, 793 (1996).
T. Boddington, P. Gray, W. Kordlewski, and S. K. Scott, Thermal explosion with extensive reactant consumption: A new criterion for criticality, Proc. Roy. Soc. London A 390, 13 (1983).
A. Varma, A. S. Rogachev, A. S. Mukasyan, S. Hwang, Combustion synthesis of advanced materials: Principles and applications, Advan. Chem. Eng. 24, 79 (1998).
Y. S. Naiborodenko, V. I. Itin, and K. V. Savitskii, Exothermic effects during sintering of a mixture of nickel and aluminum powders, Sov. Phys. J. 11, 19 (1968).
K. A. Philpot, Z. A. Munir, J. B. Holt, An investigation of the synthesis of nickel aluminides through gasless combustion, J. Mater. Sci. 22, 159 (1987).
V. E. Ovcharenko and E. N. Bodyagin, The influence of aluminum content on the temperature profile characteristics during synthesis of Ni3Al in the thermal explosion mode, Combust. Expos. Shock Waves 34, 639 (1998).
A. G. Gasparyan and A. S. Shteinberg, Macrokinetics of interaction and thermal explosion in mixtures of nickel-aluminum powders, Combust. Expos. Shock Waves 24, 324 (1988).
V. A. Knyazik, A. S. Shteinberg, and V. I. Gorovenko, Thermal analysis of high-speed high-temperature reactions of refractory carbide synthesis, J. Therm. Anal. 40, 363 (1993).
A. G. Merzhanov, E. B. Pis'menskaya, V. I. Ponomarev, A. S. Rogachev, Dynamic X-ray crystallography of phase transitions in synthesis of intermetallic compounds under thermal explosion condition, Dokl. Phys. Chem. 363, 381 (1998).
E. B. Pis'menskaya, A. S. Rogachev, V. I. Ponamorev, Macrokinetics of thermal explosion in Nb-Al system: Dynamics of phase formation, Combust. Expos. Shock Waves 36, 198 (2000).
A. G. Merzhanov, N. I. Ozerkovskaya, K. G. Shkadinskii, Thermal explosion in the post induction period, Dokl. Russ. Akad. Nauk 362, 60 (1998).
A. Varma, A. S. Rogachev, A. S. Mukasyan and S. Hwang, Complex Behavior of Self-Propagating Reaction Waves in Heterogeneous Media, Proc. Natl. Acad. Sci. USA 95, 11053 (1998).
K. A. Philpot, Z. A. Munir, and J. B. Holt, An investigation of the synthesis of nickel aluminides through gasless combustion. J. Mater. Sci. 22, 159 (1987).
H. P. Li and J. A. Sekhar, The influence of the reactant size on the micropyretic synthesis of NiAl intermetallic compounds. J. Mater. Res. 10, 2471 (1995).
L. Thiers, A. S. Mukasyan, and A. Varma, Thermal explosion in Ni-Al system: Influence of reaction medium microstructure, Combust. Flame 2002 (in press).
V. I. Itin and Yu. S. Naiborodenko, High-Temperature Synthesis of Intermetalic Compounds, Tomsk University, Tomsk, Russia, (1989).
R. Siegel and J. R. Howell, Thermal Radiation Heat Transfer, Hemisphere Publishing Corporation, Washington, 1981, p. 689.
A. G. Merzhanov, E. B. Pis'menskaya, V. I. Ponomarev, and A. S. Rogachev, Dynamic X-ray crystallography of intermetallic compounds under thermal explosion conditions, Dokl. Phys. Chem. 363, 381 (1998).
A. S. Rogachev, A. Varma, and A. G. Merzhanov, The mechanism of self-propagating high-temperature synthesis of nickel aluminides, Int. J. SHS 2, 25 (1993).
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Rogachev, A.S., Mukasyan, A.S. & Varma, A. Volume Combustion Modes in Heterogeneous Reaction Systems. Journal of Materials Synthesis and Processing 10, 31–36 (2002). https://doi.org/10.1023/A:1021096812808
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DOI: https://doi.org/10.1023/A:1021096812808