Compressibility of Liquid Sodium—Potassium Alloys
- 1 July 1962
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 37 (1), 125-128
- https://doi.org/10.1063/1.1732933
Abstract
The velocity of sound has been measured in the sodium—potassium alloy system as a function of both composition and temperature. For each composition the velocity was found to be a linear function of the temperature. The behavior of the compressibility, because of the volume contraction on alloying, cannot be explained in terms of a free electron model. A possible explanation is that changes in the electronic charge density upon alloying gives rise to both the volume contraction and the slight positive deviation in the compressibility.Keywords
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