Magnetic body for an inductor and a method of manufacturing magnetic material for an inductor including same
AssigneesHyundai Motor Company, Kia Corporation, Chang Sung Co.
InventorsYoung Min Kim, Tae Kyung Lee, Nam Kyu Choi
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Abstract
A magnetic body for an inductor has an excellent direct-current bias property in a high-current region. The magnetic body for the inductor is a magnetic body used in an inductor for high current. The magnetic body has a core particle including a Fe—Al-based alloy containing 10 wt % or more of Al and a balance of Fe and other inevitable impurities, and has an insulating layer including Al2O3 formed on the surface of the core particle. A method of manufacturing such a magnetic material for the inductor is also disclosed.
Claims16
A magnetic body for an inductor, which is used in the inductor for a high current, the magnetic body comprising:
- a core particle including a Fe—Al-based alloy containing 10 wt % or more of Al and a balance of Fe and other inevitable impurities;
- and
- an insulating layer including Al2O3 formed on a surface of the core particle.
A method of manufacturing a magnetic material for an inductor, which is used in an inductor for high current, the method comprising:
- a core-particle preparation step of preparing core particles containing 10 wt % or more of Al and a balance of Fe and other inevitable impurities;
- an insulating-material preparation step of preparing a main insulating material by removing moisture from a talc (Mg3Si4O10(OH)2);
- a first mixing step of mixing the prepared core particles and the main insulating material to prepare a first mixture;
- and
- a first heat treatment step of heat-treating the prepared first mixture at 900 to 1300° C., thus generating a magnetic body having an insulating layer including Al2O3 formed on a surface of the core particle.
Dependencies are inferred from the claim text.