No CrossRef data available.
Article contents
Reaction kinetics in the combustion synthesis of Al–Ir–Ni intermetallic compounds
Published online by Cambridge University Press: 31 January 2011
Abstract
The combustion synthesis of Al50Ir48Ni2 (at.%) was conducted at different heating rates in both a differential scanning calorimetry (DSC) chamber and a vacuum furnace. It was found that a higher heating rate, a sufficient amount of reactant powder, and effective control of the heat loss facilitated the complete reaction and resulted in combusted single IrAl phase products. Otherwise, multiphase products containing IrAl, unreacted Ir, and Al3Ir were synthesized. The reactions involved in different processes were discussed in terms of the thermal competition between heat generation and loss during the reaction. All ignition temperatures were below 773 K, indicating that the combustion reaction occurs at the solid–solid state. With increasing heating rate, the ignition temperature increased while the product density decreased.
Keywords
- Type
- Articles
- Information
- Copyright
- Copyright © Materials Research Society 2008
References
REFERENCES
1Jaffee, R-I., Perkins, R-A.Pound, G-M.: High-temperature Oxidation-Resistant Coatings National Material Advisory Board Washington, DC 1970 112Google Scholar
2Yamabe-Mitarai, Y., Aoki, H., Hill, P.Harada, H.: High-temperature mechanical properties of Ir–Al alloys. Scripta Mater. 48, 565 2003Google Scholar
3Hosoda, H., Miyazaki, S.Hanada, S.: Potential of IrAl base alloys as ultrahigh-temperature smart coatings. Intermetallics 8, 1081 2000CrossRefGoogle Scholar
4Hohls, J., Hill, P-J.Wolff, I-M.: Hardness behaviour in B2 pseudobinary systems. Mater. Sci. Eng. A Struct. Mater. 329, 504 2002CrossRefGoogle Scholar
5Hosoda, H.Wakashima, K.: Effect of Co addition on oxidation behavior of IrAl. Mater. Sci. Eng. A Struct. Mater. 352, 16 2003CrossRefGoogle Scholar
6Zhu, P., Li, J-C-M.Liu, C-T.: Reaction mechanism of com bustion synthesis of NiAl. Mater. Sci. Eng. A Struct. Mater. 329, 57 2002CrossRefGoogle Scholar
7Biswas, A.Roy, S-K.: Comparison between the microstructural evolutions of two modes of SHS of NiAl: Key to a common reaction mechanism. Acta Mater. 52, 257 2004CrossRefGoogle Scholar
8Ode, M., Murakami, H.Onodera, H.: Self-propagating high-temperature synthesis of IrAl and its application to coating process. Scr. Mater. 52, 1057 2005CrossRefGoogle Scholar
9Chiba, A., Ono, T., Li, X-G.Takahashi, S.: High-temperature strength of Ni-doped IrAl with the B2 type ordered crystal structure. Intermetallics 6, 35 1998Google Scholar
10Chou, T.C.: The formation of discontinuous Al2O3 layers during high-temperature oxidation of IrAl alloys. J. Mater. Res. 5, 378 1990CrossRefGoogle Scholar
11Lee, K-N.Worrell, W-L.: The oxidation of iridium aluminum and iridium hafnium intermetallics at temperatures above 1550 °C. Oxid. Met. 32, 357 1989CrossRefGoogle Scholar
12Philpot, K-A., Munir, Z-A.Holt, J-B.: An investigation of the synthesis of nickel aluminides through gasless combustion. J. Mater. Sci. 22, 159 1987CrossRefGoogle Scholar
13Zhu, H-X.Abbaschian, R.: Reactive processing of nickelaluminide intermetallic compounds. J. Mater. Sci. 38, 3861 2003CrossRefGoogle Scholar
14Abe, T., Ode, M., Murakami, H., Oh, C-S., Kocer, C., Yamabe-Mitarai, Y.Onodera, H.: A thermodynamic description of the Al–Ir system. Mater. Sci. Forum 539–543, 2389 2007CrossRefGoogle Scholar
15Ansara, I., Dupin, N., Lukas, H-L.Sundman, B.: Thermodynamic assessment of the Al–Ni system. J. Alloys Compd. 247, 20 1997CrossRefGoogle Scholar
16Itin, V.I.Naiborodenko, Yu.S.: High-Temperature Synthesis of Intermetallic Compounds Izd. Tomsk. Univ. Tomsk, Russia 1989 in RussianGoogle Scholar
17Brain, I., Knacke, O.Kubaschewski, O.: Thermochemical Properties of Inorganic Substances Springer-Verlag New York 1973 489Google Scholar
18Niihara, K., Morena, R.Hasselman, D-P-H.: Indentation fracture toughness of brittle materials for palmqvist cracks. Fract. Mech. Ceramics 5, 97 1983CrossRefGoogle Scholar
19Moore, J-J.Feng, H-J.: Combustion synthesis of advanced materials. 1. Reaction parameters. Prog. Mater. Sci. 39, 243 1995CrossRefGoogle Scholar
20Lee, S-H., Lee, J-H., Lee, Y-H., Shin, D-H.Kim, Y-S.: Effect of heating rate on the combustion synthesis of intermetallics. Mater. Sci. Eng. A Struct. Mater. 281, 275 2000CrossRefGoogle Scholar
21Biswas, A., Roy, S-K., Gurumurthy, K-R., Prabhu, N.Banerjee, S.: A study of self-propagating high-temperature synthesis of NiAl in thermal explosion mode. Acta Mater. 50, 757 2002CrossRefGoogle Scholar
22Atzmon, M.: The effect of interfacial diffusion-barriers on the ignition of self-sustained reactions in metal–metal diffusion couples. Metall. Trans. A 23, 49 1992CrossRefGoogle Scholar
23Plazanet, L.Nardou, F.: Reaction process during relative sintering of NiAl. J. Mater. Sci. 33, 2129 1998CrossRefGoogle Scholar
24Yi, H-C., Petric, A.Moore, J-J.: Effect of heating rate on the combustion synthesis of Ti–Al intermetallic compounds. J. Mater. Sci. 27, 6797 1992Google Scholar
25Dong, S-S., Hou, P., Yang, H-B.Zou, G-T.: Synthesis of intermetallic NiAl by SHS reaction using coarse-grained nickel and ultrafine-grained aluminum produced by wire electrical explosion. Intermetallics 10, 217 2002Google Scholar