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Understanding and Tuning the Reactivity of Nano-Energetic Materials

Published online by Cambridge University Press:  26 February 2011

A. Rai
Affiliation:
L. Zhou
Affiliation:
A. Prakash
Affiliation:
A. McCormick
Affiliation:
M. R. Zachariah
Affiliation:
[email protected], University of Maryland
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Abstract

Mixtures of fuel and oxidizers with particle sizes in the nanometer range have been widely used for energy intensive applications like propellants and explosives. Nano- Al is invariably used as fuel, while a host of metal oxide nanoparticles are used as oxidizers. This article aims at understanding and tuning the reactivity of these nano-energetic materials. The first part of this article discusses the oxidative reactivity of aluminum nanoparticles as measured experimentally using single-particle mass-spectrometer (SPMS) and microscopy and then modeled. Experimental evidence suggests that outward diffusion of aluminum is an important phenomenon in the oxidation of aluminum nanoparticle. Also melting of the aluminum core is necessary for the reaction to take place vigorously. In the second part of the paper we discuss the formation of novel oxidizers. A super-reactive formulation of Al/KMnO4 has been developed which is shown to be orders of magnitude more reactive than the traditional formulations of Al/Fe2O3, Al/MoO3 and Al/CuO. We demonstrate the formation of novel composite oxidizers to tune the reactivity of the Al/Metal oxide system.

Type
Research Article
Copyright
Copyright © Materials Research Society 2006

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References

REFERENCES

1. Ivanov, G. V., Tepper, F., 4th International Symposium on Special Topics in Chemical Propulsion, 636 (1997).Google Scholar
2. Aumann, C. E., Skofronick, G. L., Martin, J. A., J. Vac. Sci. Technol. B 13 (3), 1178 (1995).Google Scholar
3. Bruzostowski, T. A., , I. Glassman, I., in Heterogeneous Combustion, Edited by Wolfhard, H. G., Glassmam, I., Green, L. Jr., Academic Press, New York, 1964.Google Scholar
4. Law, C. K., Combust. Sci. Tech. 7, 197 (1973).Google Scholar
5. Brooks, K. P., Beckstead, M. W., J. Propul. Power 11, 769 (1995).Google Scholar
6. Liang, Y., Beckstead, M. W., AIAA 98–0254, 1998.Google Scholar
7. Campbell, T., Kalia, R. K., Nakano, A., Vashishta, P., Ogata, S., Rodgers, S., Phys. Rev. Lett. 82 (24), 4866 (1999).Google Scholar
8. Fischer, S. H., Grubelich, M. C., 24th International Pyrotechnics Seminar, Monterey, CA, (1998).Google Scholar
9. Wang, L. L., Munir, Z. A., Maximov, Y. M., J. Material Sci. 28, 3693 (1998).Google Scholar
10. Prakash, A., McCormick, A. V., Zachariah, M. R., Chemistry of Materials 16, 1466 (2004).Google Scholar
11. Tillotson, T. M., Gash, A. E., Simpson, R. L., Hrubesh, W. L., Satcher, J. H., Poco, J. F., J. Non- Cryst. Solids 285, 338 (2001).Google Scholar
12. Prakash, A., McCormick, A. V., Zachariah, M. R., Advanced Materials 17, 900 (2005).Google Scholar
13. Park, K., Lee, D., Rai, A., Mukherjee, D., Zachariah, M. R., J. Phys. Chem. B 109, 7290 (2005).Google Scholar
14. Rai, A., Lee, D., Park, K., Zachariah, M. R., J. Phys. Chem. B. 108(39), 14793 (2005).Google Scholar
15. Mench, M. M., Kuo, K. K., Yeh, C. L., Lu, Y. C., Combust. Sci. Technol. 135, 269 (1998).Google Scholar
16. Storaska, G. H., Howe, J. M., Mat. Sci Engg. A368, 183 (2004).Google Scholar
17. Dreizin, E. L., Shoshin, Y. L., Mudryy, R. S., Hoffmann, V. K., Comb. Flame 130, 381 (2002).Google Scholar
18. Torre, J. Dalla, Bocquet, J. L., Limoge, Y., Crocombette, J. P., Adam, E., Martin, G., Baron, T., Rivallin, P., Mur, P., Journal of Applied Physics 92, 1084 (2002).Google Scholar
19. Rai, A., Park, K., Zhou, L., Zachariah, M. R., Combustion Theory and Modelling, Submitted (2005).Google Scholar
20. Son, S. F., Busse, J. R., Asay, B. W., Peterson, P. D., Mang, T. T., Bockmon, B., Pantoya, M. L., 29th Int. Pyrotechnics Seminar, Westminster, CO (2002).Google Scholar
21. Prakash, A., McCormick, A. V., Zachariah, M. R., Nano Letters 5, 1375 (2005).Google Scholar