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Elastic Behavior of Nanoparticle Chain Aggregates: Proposed Mechanisms

  • Sheldon K. Friedlander (a1), Hee Dong Jang (a2) and Kevin H. Ryu (a3)

Abstract

Nanoparticle chain aggregates (NCA) of 7 nm titania particles stretch under tension, and contract when the tension is relaxed. The NCA were stretched across expanding holes produced in the carbon film on an electron micrograph grid. After stretching up to 90%, the NCA broke loose at one end and contracted to a tightly folded chain. This pattern was observed in repeated tests. Mechanisms for this behavior and reasons for its generality are proposed. Implications are discussed for the ductility of nanoparticle ceramics, and the improved properties of rubber due to nanoparticle additives.

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1. Ulrich, G.D., “Flame Synthesis of Fine Particles”, Chem. Engr. News, Aug. 6, 22 (1984).
2. Ettlinger, M., , M., “Highly Dispersed Metallic Oxides Produced by the AEROSIL® Process”, Tech. Bull. 57-7-2-393DD, Degussa AG, Frankfort, Germany ((1993)).
3. Pratsinis, S.E., Kodas, T.T., “Manufacturing of Materials by Aerosol Processes" in Aerosol Measurement, edited by Willeke, K., Baron, P.A. (van Nostrand Reinhold, New York, (1993)).
4. Granqvist, C.G., Buhrman, R.A., J. Appl. Phys. 47, 2200 (1976).
5. Siegel, R.W., Annu. Rev. Mater. Sci. 21, 559 (1991).
6. Forrest, S.R., Witten, T.A. Jr., J. Phys. A 12, L109 (1979).
7. Stanley, H.E., Ostrowsky, N., On Growth and Form (Martinus Nijhoff, Dordrecht, The Netherlands, (1986)).
8. Schmidt-Ott, A., J. Aerosol Sci. 19, 553 (1988).
9. Schmidt-Ott, A., Baltensperger, U., Gaggeler, H.W., Jost, D., J. Aerosol Sci. 21, 711 (1990).
10. Weber, A.P., Baltensperger, U., Gaggeler, H.W., Schmidt-Ott, A., J. Aerosol Sci. 27, 915 (1996).
11. Weber, A.P., Friedlander, S.K., J. Aerosol Sci. 28, 179 (1997).
12. Okuyama, K., Kousaka, Y., Tohge, H., Yamamoto, S., Wu, J.J., Flagan, R.C., Seinfeld, J.H., AIChE Journal 32, 2010 (1986).
13. Israelachvili, J., Intermolecular and Surface Forces 2nd Ed. (Academic Press, London, (1992)) p.186.
14. Kingery, W.D., Bowen, H.K., Uhlmann, D.R., Introduction to Ceramics (John Wiley, NY, (1976)).
15. Karch, J., Birringer, R., Gleiter, H., Nature 330, 556 (1987).
16. Karch, J., Birringer, R., Ceramics International 16, 291 (1990).
17. Bueche, F., Physical Properties of Polymers (Wiley-Interscience, NY, 1972).
18. Weertman, J.R., Niedzielka, M., Youngdahl, C., , C., in Mechanical Properties and Deformation Behavior of Materials Having Ultra-Fine Microstructures edited by Natasi, M., Parkin, D.M., Gleiter, H. (Kluwer, Dordrecht, The Netherlands, (1993)), p. 241.

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