Title:
フェライト仮焼体、フェライト焼結磁石及びその製造方法
Document Type and Number:
Japanese Patent JP7287371
Kind Code:
B2
Abstract:
An objective of the present invention is to provide a ferrite sintered magnet capable of having a magnetic property satisfying high Br, high HcJ and high Hk/HcJ all, while making the consumption of Co lower than an existing CaLaCo magnet. To achieve the objective, in regard to a general expression indicating an atom ratio of metallic elements of Ca, R, Sr, Fe and Co (here, R is at least one among rare-earth elements and an element necessarily including La): Ca1-x-yRxAyFe2n-zCoz, provided is a ferrite plasticized body, wherein x, y and z and n (here, 2n is a molar ratio, and expressed as 2n=(Fe＋Co)/(Ca＋R＋Sr)) satisfy 0.4<=x＜0.5, 0＜y<=0.2, 0.18＜z＜0.3, 1.6<=x/z<=2.25 and 8.5<=2n-z<=10.
Inventors:
Yoshinori Kobayashi
Application Number:
JP2020159217A
Publication Date:
June 06, 2023
Filing Date:
September 24, 2020
Export Citation:
Assignee:
Proterial Co., Ltd.
International Classes:
H01F1/10; C04B35/26; C04B35/40; H01F41/02
Domestic Patent References:
| JP2017126718A | ||||
| JP2008137879A | ||||
| JP2017126719A | ||||
| JP2019172507A | ||||
| JP2021052097A |
Foreign References:
| US20180277290 |