Materials processing in a magnetic force opposed to the gravity

High magnetic fields can levitate diamagnetic substances. Conducting paramagnetic liquids can be levitated by combining electromagnetic and magnetic forces. Some recent examples of magnetic processing are given to enlighten some experimental difficulties related to solidification. Levitation appears as a particular magnetic processing. There are other concepts to damp convection in magnetic liquids, to modify and orient the solidified microstructure. An exciting perspective is the convection suppression in a magnetic liquid by using much smaller magnetic forces than the levitation force