|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Materials and Fuels for the Current and Advanced Nuclear Reactors V
||AA-7: Thermophysical Properties of Molten Zr-Ni Alloys Measured by Electrostatic Levitation
||Yuji Ohishi, Toshiki Kondo, Hiroaki Muta, Ken Kurosaki, Shinsuke Yamanaka, Junpei T Okada, Takehiko Ishikawa
|On-Site Speaker (Planned)
During a severe accident, a significant amount of molten debris could be generated by melting claddings, structural materials, and fuels. The draining behavior of the molten debris is affected by the thermophysical properties, e.g. viscosity and surface tension, of the molten debris. Accurate understanding of the thermophysical properties of the molten debris is of quite importance for understanding the progress of the accident, and for improving severe accident analysis codes. However, due to the very high melting temperatures and reactivity, little is known about the thermophysical properties of the molten debris. In this study, we adopt an electrostatic levitation technique to Zr-Ni molten alloys and measure the thermophysical properties. The levitated specimens were melted with 100 W CO2 laser. Temperature dependence of the density, viscosity and surface tension of the Zr-Ni alloys were measured. The effect of the composition on the thermophysical properties will be presented.
||Planned: A print-only volume