Magnetic material and coil component employing same
AssigneeTaiyo Yuden Co., Ltd.
InventorsHideki Ogawa, Atsushi Tanada
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Abstract
A magnetic material is constituted by a grain compact formed by compacting multiple metal grains that in turn are constituted by an Fe—Si-M soft magnetic alloy (where M is a metal element that oxidizes more easily than Fe), wherein individual metal grains have oxide film formed at least partially around them as a result of oxidization of the metal grains; the grain compact is formed primarily via bonding between oxide films formed around adjacent metal grains; and the apparent density of the grain compact 1 is 5.2 g/cm3 or more, or preferably 5.2 to 7.0 g/cm3.
Claims16
A magnetic material constituted by a grain compact formed by compacting multiple metal grains that are constituted by an Fe—Si-M soft magnetic alloy (where M is a metal element that oxidizes more easily than Fe);
- wherein individual metal grains have oxide film formed at least partially around them as a result of oxidization of the metal grains;
- wherein the grain compact is formed primarily via bonding between oxide films formed around adjacent metal grains;
- and
- wherein an apparent density of the grain compact as expressed by M/VP is 5.2 g/cm3 or more, where M represents a mass of the grain compact sample, while VP represents a volume of the grain compact sample as measured by a gas replacement method.
Dependencies are inferred from the claim text.