Ranulfo Allen, John Baglin, et al.
J. Photopolym. Sci. Tech.
Anomalous behavior has been observed in the ionic conductivity of (Na,K) mixed crystals of the alkali gallates and aluminate of the β-Al2O3 type fast ion conductors. The conductivity goes through a minimum at some intermediate composition as a consequence of a maximum in the activation energy, and is most pronounced in the (Na,K)-β-gallate, followed by (Na,K)-β-Al2O3 and (Na,K)-β"-gallate. The effect is similar to the well-known "mixed alkali effect" in glasses. A second anomaly consisting of a pronounced increase in conductivity over about a 70° temperature range, without any permanent change in activation energy, was observed for some compositions of (Na,K)-β"-gallate. © 1978.
Ranulfo Allen, John Baglin, et al.
J. Photopolym. Sci. Tech.
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SCML 2024
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