Electrical Resistivity of Some Basalt and Granite Samples From Egypt | ||||
| Egyptian Journal of Solids | ||||
| Article 3, Volume 26, Issue 1, 2003, Page 25-32 PDF (165.08 K) | ||||
| DOI: 10.21608/ejs.2003.150009 | ||||
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| Abstract | ||||
| In this paper we studied the temperature dependence of the electrical resistivity of basalt and granite samples. The electrical resistivity of these samples were measured in the temperature range from RT to 1000 K. It is observed that, The electrical resistivity of all investigated samples was decreased with the increase of temperature. The results showed that, the behaviour of the electrical resistivity have two conduction regions for basalt and granite samples. In the first region (RT to 400 K) for basalt and (RT – 450 K) for granite samples, the electrical resistivity exhibits a slight decrease. In the second region (400 to 1000 K) for basalt and (450 to 1000 K) for granite samples, the electrical resistivity exhibit a rapid decrease with the increase of temperature. The average activation energies of investigated basalt and granite samples are calculated and discussed. | ||||
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