A SiCp reinforced Al-Cu alloy and Al matrix composites are fabricated by a new method - electromagnetic centrifugal casting, the effects of rotational rate for centrifugation, magnetic density, particle size and matrix on the distribution of particles and microstructure of matrix are studied. The particle-enriched zone moves outwards as the rotational rate increases. By employing steady DC magnetic field to the conventional centrifugal casting method, the distribution of particles is changed. Th...