5th International Conference on Advances in Solidification Processes (ICASP-5) 5th International Symposium on Cutting Edge of Computer Simulation of Solidification, Casting and Refining (CSSCR-5)

Supercooled liquids may offer fascinating phenomena as compared with the normal state. In the case of supercooled paramagnetic liquids, completely different phenomena in high magnetic fields have be observed thanks to the high undercooling leading to higher magnetization and very strong magnetic coupling in the liquids. However, due to the restriction of the magnetic field intensity and maximum undercooling, the instability evolution in uniform magnetic field and magnetic field liquid are still not directly evidenced. In this study, high static magnetic field up to 25 T is applied to the metastable miscibility gap of Co-Cu alloys which owns liquid-phase separation at undercooled state, leading to the formation of α Co liquid phase at lower temperature that very close to the Curie temperature. With the application of strong magnetic field, the undercooled liquid are highly magnetized and Rosensweig instability with different shape and patterns are evidenced. The size distribution, volume fraction and instability pattern are strongly influenced both by the undercooling and field intensity. The mechanism of magnetic field on instability pattern formation and magnetism of liquid metals are discussed.