Hostname: page-component-7479d7b7d-8zxtt Total loading time: 0 Render date: 2024-07-12T04:31:01.824Z Has data issue: false hasContentIssue false
  • English
  • Français

Neutron Scattering from a Ferrofluid

Published online by Cambridge University Press:  22 February 2011

Min Y. Lin ,
Weili Luo  and
Jeffrey Lynn
Min Y. Lin
Affiliation:
Exxon Research and Engineering Co., Annandale, NJ 08801 National Institute of Standards and Technology, Gaithersburg, MD 20899
Weili Luo
Affiliation:
Dept. of Physics, University of Central Florida, Orlando, FL 32816
Jeffrey Lynn
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20899
Get access

Abstract

Small angle neutron scattering experiments were performed on a eicosane-based ferrofluid. An average size of 88 Å can be extracted from the data, in agreement with results from electron microscopy. Below the frozen temperature of eicosane, however, the particles are seen to be in larger aggregates with a fractal dimension of 2.15, similar to those formed under reaction-limited cluster aggregation (RLCA) conditions. At high concentrations, particles form larger aggregates even in the liquid state. Applying a magnetic field introduces new structure and changes the density inside the aggregates.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 376: Symposium BB – Neutron Scattering in Materials Science , 1994 , 341
Copyright
Copyright © Materials Research Society 1995

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 Rosensweig, R.E., Ferrohydrodynamics, (Cambridge University Press, New York, 1985).Google Scholar
2 Rosensweig, R.E., Ann. Rev. Fluid Mech. 19, 437 (1987).Google Scholar
3 Wang, H., Zhu, Y., Boyd, C., Luo, W., Cebers, A., and Rosensweig, R.E., Phys. Rev. Lett. 72, 1929 (1994).Google Scholar
4 Zhu, Z., Lin, M.Y., and Tomkiewicz, M., this volume.Google Scholar
5 Rosensweig, R.E. and Popplewell, J., in Electromagnetic Forces and Applications, edited by Tani, J. and Takagi, T. (Elsevier Science Publishers, New York, p. 83.Google Scholar
6 Lin, M.Y., Lindsay, H. M., Weitz, D.A., Ball, R.C., Klein, R., and Meakin, P., Nature 339, 360 (1989).Google Scholar