Hostname: page-component-76fb5796d-22dnz Total loading time: 0 Render date: 2024-04-26T23:05:22.719Z Has data issue: false hasContentIssue false
  • English
  • Français

Elastic Behavior of Nanoparticle Chain Aggregates: Proposed Mechanisms

Published online by Cambridge University Press:  10 February 2011

Sheldon K. Friedlander ,
Hee Dong Jang  and
Kevin H. Ryu
Sheldon K. Friedlander
Affiliation:
Department of Chemical Engineering, UCLA, Los Angeles, CA 90095
Hee Dong Jang
Affiliation:
Korea Institute of Geology, Mining and Materials, Taejeon 305-350, Korea
Kevin H. Ryu
Affiliation:
Department of Materials Science and Engineering, UCLA, Los Angeles, CA 90095
Get access

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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 520: Symposium P – Nanostructured Powders & Their Industrial Application , 1998 , 45
Copyright
Copyright © Materials Research Society 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

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