Abstract
The purpose of this paper is to review the effects of a dispersed second phase on electrical and mass transport in solids. According to classical theories, when an insulator is added to a conductor, the electrical conductivity decreases. However, when the insulator particles are small and uniformly dispersed in a conducting matrix, just the opposite behavior is observed. Liang1 first published an experimental study of the ionic conductivity of LiI containing a dispersion of fine Al2O3 particles. At room temperature, the ionic conductivity of LiI (35–40 m/o Al203) was increased by over an order of magnitude (see Fig. 1). Liang assembled batteries (cells) utilizing Lil (Al203) as the solid electrolyte and the open circuit voltage of the cells corresponded with the calculated from the cell reactions thus indicating a negligible electronic conduction in the Lil (Al203) composites. Jow and Wagner2 studied the CuCl (Al203) system and found behavior similar to that for Lil (AI203) reported by Liang.
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References
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© 1985 Plenum Press, New York
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Wagner, J.B. (1985). Transport in Materials Containing a Dispersed Second Phase. In: Simkovich, G., Stubican, V.S. (eds) Transport in Nonstoichiometric Compounds. NATO ASI Series, vol 129. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2519-2_1
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DOI: https://doi.org/10.1007/978-1-4613-2519-2_1
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