Liquid-Liquid phase separation of glass under microgravity

Abstract

We observed liquid-liquid phase separation of glass under microgravity by in situ observation method. The glass of the system BaO-B₂O₃ were prepared by a meltquench method. The nucleation and growth of phase-separated particle under microgravity is slower than under 1-g. The delay time of phase separation between under microgravity and under 1-g depends on flow rate of the melt under microgravity.