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Mechanistic studies in combustion synthesis of NiAl–TiB2 composites: Effects of gravity

Published online by Cambridge University Press:  31 January 2011

Cheryl Lau ,
Alexander Mukasyan ,
Aleksey Pelekh  and
Arvind Varma
Cheryl Lau
Affiliation:
Department of Chemical Engineering and Center for Molecularly Engineered Materials, University of Notre Dame, Notre Dame, Indiana 46556
Alexander Mukasyan
Affiliation:
Department of Chemical Engineering and Center for Molecularly Engineered Materials, University of Notre Dame, Notre Dame, Indiana 46556
Aleksey Pelekh
Affiliation:
Department of Chemical Engineering and Center for Molecularly Engineered Materials, University of Notre Dame, Notre Dame, Indiana 46556
Arvind Varma*
Affiliation:
Department of Chemical Engineering and Center for Molecularly Engineered Materials, University of Notre Dame, Notre Dame, Indiana 46556
*
a)Address all correspondence to this author. e-mial: [email protected]
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Abstract

Combustion synthesis (CS) of NiAl-based materials reinforced by TiB2 particles was investigated under both terrestrial and microgravity conditions. The synthesized metal matrix composites (MMC) are characterized by very fine (<1 μm) reinforced particulates, which have strong bonding along their entire surface with matrix (NiAl) and are distributed uniformly in it. It was found that microgravity leads to a decrease in the average TiB2 particle size, while higher volume fraction of NiAl component in the material leads to the formation of coarser reinforced particulates. The mechanism of structure formation of different MMCs during CS was identified by using the quenching technique. For example, it was shown that TiB2 grains appear due to crystallization from the complex (Ni–Al–Ti–B) liquid solution formed in the combustion front. An overall decrease of microstructural transformation rates was observed under microgravity.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 6 , June 2001 , pp. 1614 - 1625
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1.Miracle, D.B. and Darolia, R., in Intermetallic Compounds, edited by Westbrook, J.H. and Fleischer, R.L. (John Wiley & Sons, Chichester, U.K., 1995), pp. 2, 53.Google Scholar
2.Bose, A., Rabin, B.H., and German, R.M., Powder Metall. Int. 20, 25 (1988).Google Scholar
3.Schwartz, M.M., Composite Materials: Processing, Fabrication, and Applications (Prentice Hall, Upper Saddle River, NJ, 1997).Google Scholar
4.Alman, D.E. and Stoloff, N.S., Int. J. Powder Metall. 27, 29 (1991).Google Scholar
5.Kumar, K.S., Darolia, R., Lahrman, D.F., and Mannan, S.K., Scr. Metall. 26, 1001 (1992).CrossRefGoogle Scholar
6.Jha, S.C. and Gaydosh, D.J., Scr. Metall. 23, 805 (1992).CrossRefGoogle Scholar
7.Jha, S.C. and Gaydosh, D.J., J. Mater. Sci. Lett. 7, 285 (1988).Google Scholar
8.Stoloff, N.S. and Alman, D.E., Mater. Sci. Eng. A 144, 51 (1991).CrossRefGoogle Scholar
9.Westwood, A.R.C., Metall. Trans. A 19A, 749 (1988).CrossRefGoogle Scholar
10.Whittenberger, J.D., Viswanadham, R.K., Mannan, S.K., and Sprissler, B., J. Mater Sci. 25, 35 (1990).CrossRefGoogle Scholar
11.Sikka, V.K., Mavity, J.T., and Anderson, K., Mater. Sci. Eng. A 153, 712 (1992).CrossRefGoogle Scholar
12.Atzmon, M., Mater. Sci. Eng. A 132, 6173 (1990).Google Scholar
13.Merzhanov, A.G., in Combustion and Plasma Synthesis of High-Temperature Materials, edited by Munir, Z.A. and Holt, J.B. (VCH Publishers, New York, 1990), p. 1.Google Scholar
14.Varma, A., Rogachev, A.S., Mukasyan, A.S., and Hwang, S., Adv. Chem. Eng. 24, 79 (1998).CrossRefGoogle Scholar
15.Broussaud, D., Pastor, H., Meyer, R., and Accary, A., in Modern De-velopments in Powder Metallurgy, edited by Hausner, H.H. and Smith, W.E. (Metal Powder Industries Federation & American Powder Metallurgy Institute, Princeton, NJ, 1974), p. 589.Google Scholar
16.Shiryaev, A.A., Int. J. SHS 4, 351 (1995).Google Scholar
17.Mukasyan, A.S., Pelekh, A., Varma, A., Rogachev, A.S., and Jenkins, A., AIAA J. 35, 1821 (1997).CrossRefGoogle Scholar
18.Mukasyan, A.S. and Borovinskaya, I.P., Int. J.SHS, 1, 55 (1992).Google Scholar
19.Hwang, S., Mukasyan, A.S., and Varma, A., Combust. Flame 115, 354 (1998).CrossRefGoogle Scholar
20.Varma, A., Rogachev, A.S., Mukasyan, A.S., and Hwang, S., Proc. Natl. Acad. Sci. U.S.A. 95, 11053 (1998).CrossRefGoogle Scholar
21.Mukasyan, A.S., Pelekh, A., and Varma, A., J. Mater. Synth. Proc. 5, 391 (1997).Google Scholar
22.Rogachev, A.S., Varma, A., and Merzhanov, A.G., Int. J. SHS 2, 25 (1993).Google Scholar
23.Jolman, J.P., Heat Transfer, 7th ed. (McGraw-Hill, New York, 1996).Google Scholar
24.German, R.M., Liquid Phase Sintering (Plenum Press, New York, 1995).Google Scholar
25.Heaney, D.H., German, R.M., and Ahn, L.S., J. Mater. Sci. 30, 5808 (1995).CrossRefGoogle Scholar
26.Liu, J., Liu, Y., Lai, A., and German, R.M., Scr. Mater. 40(11), 1221 (1999).CrossRefGoogle Scholar