Abstract
We present the resugts of an experiment on the wetting of liquid hydrogen on a cesium substrate using helium as a surfactant. In contrast to the previously studied case of 3He-4He mixtures on cesium, there is less ambiguity about the concentration dependence of the liquid-solid surface tension, suggesting that the resugts may be more easily interpreted; however, the relatively high temperatures and pressures complicate both experiment and calculation. The thermal expansion of the liquid turns out to be a major contribution to the temperature variation of the liquid-solid surface tension. When this is taken into account, there is excellent agreement between the observed variation of the wetting temperature with helium concentration (−.31±0.01 K/bar) and the calculated value (−.30 K/bar).
Similar content being viewed by others
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Pettersen, M.S., Rolley, E., Guthmann, C. et al. Wetting in Binary Fluid Mixtures: Recent Resugts in H2/He on Cesium. Journal of Low Temperature Physics 134, 281–291 (2004). https://doi.org/10.1023/B:JOLT.0000012568.10132.fc
Issue Date:
DOI: https://doi.org/10.1023/B:JOLT.0000012568.10132.fc