Patent ID: 11965229
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B  H  Y | IPC B  C  H

Claim 0:
1. A metal magnetic particle comprising:
an oxide layer formed on a surface of an alloy particle containing Fe and Si, the oxide layer including a first oxide layer, a second oxide layer, a third oxide layer, and a fourth oxide layer from a side of the alloy particle, and
wherein
in line analysis of element content by using a scanning transmission electron microscope-energy dispersive X-ray spectroscopy,
the first oxide layer is a layer in which Si content takes a local maximum value,
the second oxide layer is a layer in which Fe content takes a local maximum value,
the third oxide layer is a layer in which Si content takes a local maximum value,
the fourth oxide layer is a layer in which Fe content takes a local maximum value, and
in the third oxide layer, the Fe content is greater than the Si content.