A Study of the Percolation Behavior for Fe3O4 and SiC Filled PMCs by Measurement of Electrical Resistivity and Relative Permittivity

作者：Shin Soon Gi^*

来源：Journal of the Korean Institute of Metals and Materials, 2013, 51(1): 83-88.

DOI：10.3365/KJMM.2013.51.1.083

• composites
• extrusion
• electrical properties
• resistivity
• percolation threshold

During lost, three decades extensive And worldwide progress with respect to many aspects of percolation behavior of composites with a Single kind of filler. However, composites made with two kinds of filler have not yet been investigated in depth The percolation behavior of potential grading, materials composed of Fe3O4, SiC, and high density polyethylene has been discussed in this study. The electric field dependence of electrical resistivity in the composites above the percolation threshold has been explained without violating the universal law of conductivity. The electrical resistivity Fe3O4 or SiC filled polymer matrix composites. (PMCs) decreased, with increasing volume fraction of fillers: The percolation:, threshold of PMCs is estimated to be 0.25, 0.3, and 0.32 with Fe3O4, SiC, and Fe3O4-SiC filler, respectively A potential grading layer that has stable and excellent partial discharge suppression capability has been developed.