The process of two-liquid phase separation (TLPS) was studied by the electrical resistivity, rho, both on the ground and under microgravity obtained on board the sounding rocket. On cooling to the critical temperature, T(and c), on the ground, increase of rho and decrease of the temperature coefficient of rho, drho/dT were found in the homogeneous liquid phase of liquid Bi-Ga and Cd-Ga alloys. However, increase of rho and decrease of drho/dT were observed for the liquid Hg-Ga System. Both tendencies were explained successfully by the concentration fluctuation model. The rocket experiment for the p of liquid Bi-Ga alloys revealed that, under microgravity, the concentration fluctuation grows extensively and the nucleation for TLPS is suppressed.
The critical behaviour under microgravity of liquid alloys with mutual immiscibility
Das kritische Verhalten flüssiger Legierungen mit gegenseitiger Unvermischbarkeit unter Mikrogravitation
Measurement Science and Technology ; 16 , 2 ; 345-353
2005
9 Seiten, 11 Bilder, 1 Tabelle, 49 Quellen
Article (Journal)
English
Immiscible alloys under microgravity conditions
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