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2008/04/07(Mon) 21:57

Thermophysical Property Measurements of Non-equilibrium Melts using an Electromagnetic Levitator in a Static Magnetic Field

The purpose of the present study is to develop a novel technique for measuring thermophysical properties of chemically reactive, high-temperature, metallic or semiconductor melts using an electromagnetic levitator incorporating a static magnetic field. Not only oscillation of center of gravity of molten silicon droplet but also its surface oscillation diminished with increasing magnetic field. The silicon droplet rotated like the rigid body. The figure shows a recalescence of the silicon droplet under a static magnetic field of 3 T. In the next step, a modulation calorimetry using a laser heating is attempted to a silicon droplet in a static magnetic field to measure heat capacity, total hemispherical emissivity and thermal conductivity of molten silicon.

IMRAM, Tohoku University: H. Fukuyama, H. Kobatake, I. Minato
IMR, Tohoku University: S. Awaji


東北大学多元物質科学研究所:福山博之,小畠秀和,湊 出
東北大学金属材料研究所:淡路 智