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|1. (WO2018052107) MAGNETIC CORE AND COIL COMPONENT|
|Applicants:||HITACHI METALS, LTD.
|Title:||MAGNETIC CORE AND COIL COMPONENT|
Provided are: a magnetic core that exhibits a high initial permeability and a small magnetic core loss and is further able to reduce magnetic core loss at high frequencies; and a coil component using same. This magnetic core is formed by binding, via an oxide layer containing an Fe oxide, multiple particles of an Fe-based alloy containing aluminum, wherein the magnetic core exhibits, in an X-ray diffraction spectrum of the magnetic core as measured using Cu-Kα characteristic X-rays, a peak intensity ratio (P1/P2) of not higher than 0.010 (but not including zero) between a peak intensity P1 of a diffraction peak that is derived from an Fe oxide having a corundum structure and that appears in the vicinity of 2θ=33.2° and a peak intensity P2 of a diffraction peak that is derived from an Fe-based alloy having a bcc structure and that appears in the vicinity of 2θ=44.7°, and the superlattice peak intensity of Fe3Al ordered structure is not higher than noise level within the range of 2θ=20° to 40°.