Abstract
The principle and some examples of magneto-Archimedes separation of feeble magnetic materials have been introduced. Under magneto-Archimedes levitation condition, the stable levitation position depends on the materials because it is determined by the difference in volume magnetic susceptibilities and densities between objects and their surroundings. By using this feature, this novel magnetic separation technique was successfully demonstrated. When some powder mixtures composed of feeble magnetic materials were levitated, the initial mixture underwent separation into each kind of the ingredient particle aggregates immediately. It was also confirmed that this method is sensitive to both material density and magnetic susceptibility. This technique seems to be a beneficial way for the practical separation of feeble magnetic materials.
