Adsorption of components of the Na-Cs binary system in liquid and solid states

The report presents the results of calculations of adsorption of components (Na, Cs and molecules of the chemical compound Na$_{2}$Cs) of alloys of the Na-Cs binary system obtained by the method developed by the authors in both liquid and solid states. The values of caesium adsorptions and quasi-molecular formation of Na$_{2}$Cs are determined in liquid and solid states of solution using experimental data on electron yield work (ERW) of pure metals and their alloys. The secondary systems Na-Na$_{2}$Cs and Na$_{2}$Cs-Cs at 183K are found to be closer to ideal than the original $Na-Cs$ binary system at 300K. It is shown that adsorptions of Na$_{2}$Cs and caesium chemistry in the solid state of the alloys are less than adsorptions of caesium in the liquid state of the alloys of the Na-Cs binary system, which the authors attribute to the significant escape of caesium into the intercrystalline space in the solid polycrystalline alloy.