Effect of annealing on the electrical resistivity of conductive polyvinylchloride-copper composites
- 1 May 1978
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 49 (5) , 3001-3003
- https://doi.org/10.1063/1.325151
Abstract
Polyvinylchloride-copper composites at different volume percent of copper are annealed at 50 °C for 10 days. The effect of temperature on the electrical resistivity of the resulting composites is studied between 0 and 40 °C using a four-electrode device. Three clearly distinguished behaviors of the composites are observed after prolonged annealing. They exhibit (a) a positive temperature coefficient of resistance, (b) higher discrepancy in resistivity values for all metal loadings, and (c) an Ohmic current-voltage relationship. We try to explain the positive temperature coefficient of resistance through the reduction of the contact pressure between the metal particles with increase in temperature.This publication has 6 references indexed in Scilit:
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