Hostname: page-component-745bb68f8f-v2bm5 Total loading time: 0 Render date: 2025-01-27T02:50:25.295Z Has data issue: false hasContentIssue false
  • English
  • Français

A Study of the Volume Fraction, temperature and Pressure Dependence of the Resistivity in a Ceramic–Polymer Composite using a General Effective media Equation

Published online by Cambridge University Press:  28 February 2011

David S. McLachlan ,
Michael Blaszkiewics ,
Shoko Yoshikawa  and
Robert E. Newnham
David S. McLachlan
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park Pa 16802
Michael Blaszkiewics
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park Pa 16802
Shoko Yoshikawa
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park Pa 16802
Robert E. Newnham
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park Pa 16802
Get access

Abstract

A General Effective Media (GEM) equation is used to quantitatively describe the resistivity of an Fe304-eccogel composite system as a function of the relative volume fractions. The two percolation morphology parameters (øc and t) characterise the microstructure. Preliminary models, also based on the GEM equation, are used to describe the positive temperature coefficient of resistivity (PTC) and the piezoresistivity (uniaxial pressure) of the composite when the composition is near the percolation threshold.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 195: Symposium S – Physical Phenomena in Granular Materials , 1990 , 147
Copyright
Copyright © Materials Research Society 1990

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. Landauer, R.. in Electrical Transport and Optical Pronerties of Inhomogeneous Media Vol. 5, pp. 2–45, Edited by Garland, J. C. and Tanner, D. B., American Institute of Physics Conference Proceedings, No. 40 (1978).Google Scholar
2. Zallen, R., The Physics of Amorphous Solids, Chapter 4, Wiley, New York (1983).Google Scholar
3. McLachlan, D. S., J. Phys. C20, 865 (1987)Google Scholar
4. Deprez, N., McLachlan, D. S. and Sigalas, I., Solid State Comm. 66, 869 (1988)Google Scholar
5. McLachlan, D. S., Japan J Appl. Phys. 26, Suppl. 26–3,901 (1987)Google Scholar
6. McLachlan, D. S., Solid State Comm. 69, 925 (1989)Google Scholar
7. Yoshikawa, S., Ota, T., Newnham, R. and Amin, A., J. Am. Ceram. Soc. 73, 263(1990).Google Scholar
8. Blaszkiewics, M., McLachlan, D. S. and Newnham, R. E., to be submitted to press.Google Scholar
9. Garland, J., Trans. Met. Soc. AIME 236, 642 (1966)Google Scholar