Abstract:
Soft magnetic composite (SMC), as one of soft magnetic materials, is being used
increasingly in electromagnetic devices due to its magnetic isotropy, high electrical resistivity
and easy formation. This paper presents the magnetic field distribution at the compressing
surface of SMC by means of magneto-optical imaging technique. It is found that the flux
density is non-uniform inside the sample, even within one particle region. Although there are
interactions between neighbouring particles, the magnetized sample behaves as a collection of
individual magnetized particles rather than as a uniform and continuous magnetic substance.
