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International Journal of Advanced Engineering, Management and Science

The Effect of Nickel Incorporation on Some Physical Properties of Epoxy Resin

( Vol-3,Issue-1,January 2017 )

Author(s): A. Abu El-Fadl, M. A. Gaffar, A.S. Ba-Sabiah

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Page No: 005-010
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Epoxy resin, J-E characteristics, Electrical resistivity, Mechanical hardness.


The J-E characteristics of samples of epoxy resins mixed with nickel powder in different concentrations have been tested and a log-log straight line behaviour in both the low- and high field regions is observed. Ni-concentration has significant influence on the calculated constants of the J-E relationship. The d.c. electrical resistivity (ρ) of the samples are measured from the room temperature up to about 400 K. The variation of ρ with T obeys the exponential relation of ordinary dielectrics in three temperature regions. The parameters characterizing the ρ -T dependence change considerably with Ni-concentration. Due to the existence of nickel in different concentration a "true" compensation effect is observed with three characteristic compensation temperatures. The mechanical hardness of the samples was investigated as a function of Ni-concentration.

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