부산대학교 도서관

This paper describes a study on the magnetic properties of magnetic particle composites with complex oriented structures consisting of micro-size soft magnetic particles and submicron-size amorphous Fe-B particles synthesized by using a liquid-phase reduction method. For a constant amount of each micron-size particle, their saturation flux densities linearly increased with the increase of Fe-B particles, while their permeabilities markedly increased and decreased as the amount of Fe-B particles increased. In addition, the external magnetic field range in which the permeability increases was extended by the use of Fe-B particles, which might be attributed to the decrease of demagnetization. Therefore, these results demonstrate that magnetic properties are markedly improved by complex oriented structures. These results also suggest that these magnetic particle composites with complex oriented structures are a candidates for passive devices for next generation power electronics.