Calculating the thermodynamic parameters of the surface layer of the binary sodium-potassium system |
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Authors: | B. B. Alchagirov L. Kh. Afaunova Z. A. Kegadueva R. Kh. Arkhestov |
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Affiliation: | (1) Sangster Research Laboratories, P.O. Box 49562, 5122 Cote des Neiges, Montreal, QC, Canada, H3T 2A5 |
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Abstract: | The composition and number of surface monoatomic potassium layers in Na-K alloys are calculated on the basis of theory of the thermodynamic stability of surface layers of metal alloys with respect to their thickness. The surface layer of Na-K alloys is shown to be thermodynamically stable at surface layer thickness of two monoatomic potassium layers in the range of compositions with K in Na content of ∼13–15 at %. Good agreement is obtained using the surface activities of the components in binary metal melts as criteria. |
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