Title:
MANGANESE-ZINC FERRITE MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/082623
Kind Code:
A1
Abstract:
Provided in the present application are a manganese-zinc ferrite material and a preparation method therefor. The manganese-zinc ferrite material comprises the principal components: 51.30-51.78 mol% of Fe2O3, 11.42-11.64 mol% of ZnO, 36.58-37.27 mol% of MnO and 0.02-0.1 mol% of CoO; and the auxiliary components: 200-2000 ppm of CaCO3, 200-2000 ppm of Bi2O3, 200-2000 ppm of MoO, 200-2000 ppm of NbO and 200-2000 ppm of ZrO. The material has a high Curie temperature greater than 230ºC and a BS (25ºC) higher than 530 mT, and a high magnetic permeability and a low temperature coefficient can be achieved in the temperature range of 0-230ºC. The manganese-zinc ferrite material provided in the present application can realize stable operation under broader and more extreme environmental conditions, and greatly broadens the application of manganese-zinc ferrite in the field of electronic devices.
Inventors:
LI KAIXUAN (CN)
ZHU YONG (CN)
ZHU YONG (CN)
Application Number:
PCT/CN2023/094311
Publication Date:
April 25, 2024
Filing Date:
May 15, 2023
Export Citation:
Assignee:
HENGDIAN GROUP DMEGC MAGNETICS CO LTD (CN)
International Classes:
C04B35/38; H01F1/34
Foreign References:
| CN106431374A | 2017-02-22 | |||
| CN1686928A | 2005-10-26 | |||
| CN102381873A | 2012-03-21 | |||
| CN108264340A | 2018-07-10 | |||
| CN113024239A | 2021-06-25 | |||
| JP2010173888A | 2010-08-12 |
Attorney, Agent or Firm:
KANGXIN PARTNERS , P.C. (CN)
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