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公开(公告)号：US20200066430A1
公开(公告)日：2020-02-27
申请号：US16672865
申请日：2019-11-04
Applicant: DENSO CORPORATION
Inventor： Hiroaki KURA , Eiji WATANABE , Masane KIN , Kenta OSANAI
Abstract: An L10-FeNi magnetic powder has an average particle size of 50 nm to 1 μm, and an average value of sphericity P of 0.9 or more. The sphericity P is defined as P=Ls/Lr, where Lr is a perimeter of an L10-FeNi magnetic powder particle on an image of a microscope, and Ls is a perimeter of a perfect circle that has a same area as the L10-FeNi magnetic powder particle on the image for which Lr is calculated.
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