Preparation method of anti-metal nickel copper zinc ferrite separating magnetic sheet material

A technology of nickel-copper-zinc ferrite and magnetic isolation sheet, which is applied in the field of electronic materials, can solve the problems of reducing material permeability, resource waste environment, and low crystallinity, so as to reduce magnetic domain resonance loss, improve crystallization degree, Effect of Improving Magnetic Permeability
CN105218082AActive Publication Date: 2016-01-06UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Publication Date
2016-01-06

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Abstract

Belonging to the field of electronic materials, the invention relates to a preparation method of an anti-metal nickel copper zinc ferrite separating magnetic sheet material. The method includes: weighing raw materials according to the proportion of less than or equal to 50.4mol% and greater than or equal to 49.5mol% of Fe2O3, less than or equal to 17.9mol% and greater than or equal to 16mol% of NiO, less than or equal to 25.9mol% and greater than or equal to 24mol% of ZnO, less than or equal to 10.4mol% and greater than or equal to 8.5mol% of CuO, conducting first ball milling and presintering to obtain a pre-sintered material; adding crushed magnetic sheet and CoO auxiliary component, and performing second ball milling and sintering so as to obtain the anti-metal nickel copper zinc ferrite separating magnetic sheet. The crushed magnetic sheet is the broken material of magnetic sheet obtained after second sintering of the main components and auxiliary component powder. The anti-metal nickel copper zinc ferrite separating magnetic sheet obtained by the method provided by the invention has high magnetic conductivity and low magnetic loss. And the method makes effective use of the crushed magnetic sheet in industrial production, save resources, and avoids environmental pollution.
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Description

technical field

[0001] The invention belongs to the field of electronic materials, and in particular relates to a preparation method of a metal-resistant nickel-copper-zinc ferrite magnetic isolation sheet material used for information and energy exchange equipment. Background technique

[0002] With the rapid development of the electronic information industry, the functions of electronic products are becoming more and more diversified, and people's demand for the safety and convenience of electronic products is also increasing. There are more and more, mainly including near-field wireless communication (NFC), wireless charging (WPC), radio frequency identification (RFID), etc. Its characteristics are: the working frequency is between 100KHz and 1GHz, the communication distance is less than 100 meters, and the coil coupling is used. communication and energy exchange. This kind of short-distance information and energy exchange electronic equipment is used in terminal equipme...

Claims

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