| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dust core low in core loss and high in magnetic flux density. <P>SOLUTION: The dust core is obtained by subjecting a compact to heat treatment, the compact being obtained by forming a mixture, which contains alloy powder at least containing Fe, Si and Al as soft magnetic powder and pure iron powder having a Vickers hardness of 1/3 or less of that of the alloy powder, in a core shape. An occupied volume fraction of the pure iron powder is 10-32% by volume. <P>COPYRIGHT: (C)2012,JPO&INPIT |
