AC IMPEDANCE MEASUREMENT IN RANDOM METAL-INSULATOR COMPOSITES.

In-Gann Chen, William B. Johnson

Research output: Contribution to journalConference articlepeer-review

Abstract

Composite materials generally have properties very different from those of their constituents. For example, it is well known that as the metal volume fraction in a metal-insulator composite increases the electrical conductivity increases. Near some critical metal volume fraction the conductivity of such a composite increases by as much as 6 to 10 orders of magnitude. This critical point is known as the percolation threshold. A series of different metal-insulator composite materials including Ag-KCl and Ag-Teflon specimens have been prepared by mixing predetermined amounts of Ag particles and either KCl or teflon powder. The results will be discussed in terms of two complementary models.

Original languageEnglish
Number of pages1
JournalElectrochemical Society Extended Abstracts
Volume85-1
Publication statusPublished - 1985 Jan 1

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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