EXPERIMENTAL STUDIES OF THE VAPOR-PHASE NUCLEATION OF REFRACTORY COMPOUNDS .4. THE CONDENSATION OF MAGNESIUM

Magnesium nucleation was studied over the range of approximately 700 t o 950 K in a gas evaporation apparatus. Measured supersaturation ratio s ranged from approximately 37 to 4.2 over this temperature range, res pectively. A comparison of these data and Classical Nucleation Theory shows that the two are not consistent. Although there is a good correl ation between the supersaturation and the temperature data when plotte d in accordance with Scaled Nucleation Theory, some of the derived par ameters are slightly below the limits predicted by the theory. (C) 199 6 American Institute of Physics.