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Dielectric properties of butyl rubber/graphite powder composites in bulk and membrane forms
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نویسنده
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amin m. ,nasr g.m. ,ramzy g.h. ,omar e.
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منبع
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journal of materials and environmental science - 2013 - دوره : 4 - شماره : 5 - صفحه:709 -714
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چکیده
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Samples of butyl rubber(iir)/graphite powder were prepared using two different methods in bulk and membrane forms. the dielectric properties were studied in the frequency range 102-2×105hz. the behavior of the dielectric constant and the ac conductivity were found to be described by the well-known percolation theory. the percolation threshold for both types of samples was found to be around 0.25. a deviation in the value of the percolation exponent form the universal value was found and this also was explained.
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کلیدواژه
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Dielectric properties; Graphite; IIR; Percolation
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آدرس
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physics department,faculty of science,cairo university, Egypt, physics department,faculty of science,cairo university, Egypt, physics department,faculty of science,cairo university, Egypt, physics department,faculty of science,cairo university, Egypt
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Authors
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