Conductive fluids containing magnetic particles Millimetric

The invention relates to a composite material consisting of millimeter particles of magnetic material A and B. The conductive liquid material is characterized in that the material A is selected from magnetic compounds and magnetic alloys, and it is in the form of particles whose mean diameter is between 0.1 and 2 mm, and in that the support fluid B is a conductive fluid selected from metals, metal alloys and salts that are liquid at temperatures below the Curie temperature of the material a or from mixtures thereof.