[3M10-11] Fuel Behavior in SA

[3M10] Density and viscosity of liquid ZrO₂ measured by aerodynamic levitation

*Toshiki Kondo¹, Hiroaki Muta¹, Ken Kurosaki¹, Yuji Ohishi¹ (1. Osaka university)

Keywords:Molten oxide, Severe accident, Density, Viscosity, ZrO2

Physical properties, especially viscosity, of molten core materials are the key to evaluate the spreading behavior of the molten core materials. In particular, there are almost no report about physical properties of liquid ZrO₂ because of the high melting point. This study is intended to evaluate the physical properties of liquid ZrO₂. The density and viscosity of liquid ZrO2 were successfully measured by aerodynamic levitation combined with a droplet oscillation technique.