Electrical Resistivity Surface for FeO-Fe2O3-P2O5 Glasses |
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Authors: | JAMES G. VAUGHAN DONALD L. KINSER |
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Affiliation: | School of Engineering, Vanderbilt University, Nashville, Tennessee 37235 |
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Abstract: | The dc electrical properties and microstructure of x (FeO-Fe2O3)-(100 – x )P2O5 glasses were investigated up to a maximum of x = 75 mol%. Results indicate that, in general, the minimum resistivity of the glass does not occur at equal Fe2+] and Fe3+] concentrations, although for the special case where x = 55 mol% the minimum does occur at Fe2+]/Fe total = 0.5, as reported by other investigators. Evidence presented shows that the position of the minimum resistivity is a function of total iron content. The minimum shifts to glasses richer in Fe2+] at higher total iron concentrations. |
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