Category: Transient Plane Source
Abstract: In this article, researchers measured the thermal conductivity of molten silicon, using the Hot Disk method. To avoid potential sensor harm, the standard Kapton and nickel foil sensor was swapped for a molybdenum foil, an aluminum nitride plate sensor. The regular Kapton sensor was replaced because of aluminum nitrides high resistance to the corrosive properties of the silicon melt. It was concluded that the thermal conductivity of molten silicon, at natural gravitational forces, is 45.6 W/mK. However when exposed to microgravity environments for a short period of time, the thermal conductivity decreased by 5%.
Reference: Japanese Journal of Applied Physics 39 (2000) 1405