| Abstract: | The vaporization behavior of fission-produced noble metal system (Mo-Ru-Pd, Mo-Ru-Rh and Mo-Tc-Pd) in vacuum and oxidative atmosphere at high temperatures was investigated by the thermodynamic calculation on the basis of the regular solution model and the available experimental data. The palladium and rhodium in the allyoys, and molybdenum and ruthenium in the alloys vaporize preferentially at high temperature in vacuum and in ari, respectively. At low temperature below 385K in air, ruthenium and technetium in the alloys vaporize predominantly by oxidation. |
