Containerless Solidification of Si-Ge Binary Alloy by Means of Laser Heating Electromagnetic Levitation
- 1 June 1998
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 37 (6A) , L687
- https://doi.org/10.1143/jjap.37.l687
Abstract
Pure Si and Ge, and their alloys were stably levitated and melted using an electromagnetic levitator combined with a laser heating unit. A temperature measurement method using a mono- or multicolor pyrometer for the semiconductor was discussed, and a calibration method for a monocolor pyrometer was developed by deriving their spectral emissivities at each melting point. The maximum undercooling was measured as a function of composition. This result corresponded well with the calculated value using the classical theory of steady state nucleation in binary metallic melts.Keywords
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