Experimental platform for solidification and in-situ magnetization measurement of undercooled melt under strong magnetic field.

An experimental platform for solidification of undercooled melt and synchronous measurement of magnetization under strong magnetic field is reported. The facility can be used for in-situ measurement of the magnetization of the undercooled melts and to studying the non-equilibrium solidification from deeply undercooled metals and alloys in magnetic field. The key advantages of this apparatus are first, we can obtain large undercooling in high fields by glass fluxing technique in combination with cyclical superheating and supercooling method, which is comparable to the maximum undercooling obtained by traditional method without magnetic field. Second, we can have a controlled thermal history with linear heating and cooling speed with high accuracy. Third, the temperature and magnetization measurement system are fast and on-line, which is very suitable for the investigation of both the structure transitions in the liquid in a wide temperature range (overheated and undercooled state) and the solid state phase transformations.