Hostname: page-component-669899f699-tpknm Total loading time: 0 Render date: 2025-04-28T04:15:50.867Z Has data issue: false hasContentIssue false
  • English
  • Français

Numerical Study of D.C. Conductivity & A.C. Impedance for the Close-Packed Mixture of Hard Spheres

Published online by Cambridge University Press:  10 February 2011

D. G. Han  and
G. M. Choi
D. G. Han
Affiliation:
Department of Materials Sci. & Eng., Pohang University of Science and Technology, Pohang 790–784, Korea
G. M. Choi
Affiliation:
Department of Materials Sci. & Eng., Pohang University of Science and Technology, Pohang 790–784, Korea
Get access

Abstract

Using a computational methodology, we studied average electrical properties, or, more specifically, d.c. conductivity and a.c. impedance spectra, of macroscopic mixtures of hard spheres numerically. Numerical results were compared with the calculated results of analytic equations which were generally used to describe the d.c. and a.c. electrical properties of composites. It is the purpose of this paper to provide information regarding to the geometrical arrangement effects. It was found that geometrical arrangement effects become more important as the sample size becomes smaller and the filling fraction closer to an effective percolation threshold.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 411: Symposium T – Electricaly-Based Microstructural Characterization , 1995 , 345
Copyright
Copyright © Materials Research Society 1996

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.)

Article purchase

Temporarily unavailable

References

REFERENCES

1. Bosman, A. J. and van Daal, H. J., Advances in Physics 19, 1(1970).Google Scholar
2. Anderson, M. P. and Ling, S., Journal of Electronic Materials 19, 1161(1990).Google Scholar
3. Landauer, R., AIP Conference Proceedings, 2(1978).Google Scholar
4 Derrida, B., Vanniemenus, J., J. Phys. A: Math. Gen. 15, L557–L564 (1982).Google Scholar
5. Stauffer, D., Introduction To Percolation Theory (Tayler and Francis, Inc., London and Philadelphia, 1985).Google Scholar
6. McLachlan, D. S., Blaszkiewicz, M., and Newnham, R. E., J. Am. Ceram. Soc. 73, 2187–2203 (1990).Google Scholar
7. Hodge, I. M., Ingram, M. D., and West, A. R., J. Electroanal. Chem. 74, 125–143 (1976).Google Scholar
8. Song, Y., Noh, T. W., Lee, S. I. and Gaines, J. R., Phys. Rev. B 33, 904 (1986).Google Scholar