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Method for preparing strontium-zinc-iron ternary composite magnetic material

A ternary composite, magnetic material technology, applied in the direction of inorganic material magnetism and other directions, can solve the problems of complex preparation process steps, increase production cost, and high production cost, and achieve the effects of simple process steps, improved production efficiency, and low production cost.

Inactive Publication Date: 2012-10-31
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method mainly has the following disadvantages: (1) This method uses high-priced finished ferrite and vacuum atomized alloy powder as raw materials, and uses oxygen-containing nitrogen as the sintering atmosphere, resulting in higher production costs
(2) The preparation process steps are complicated, the production equipment is more, and the equipment investment is large, which further increases the production cost
(3) In the sintering process, the sintering temperature is as high as 1773K, which does not meet the requirements of energy saving and emission reduction, and is not conducive to industrial production

Method used

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  • Method for preparing strontium-zinc-iron ternary composite magnetic material
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  • Method for preparing strontium-zinc-iron ternary composite magnetic material

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Embodiment 1

[0023] A method for preparing a strontium-zinc-iron ternary composite magnetic material, the specific steps of which are as follows:

[0024] (1) Preparation of strontium-zinc-iron ternary composite magnetic material precursor

[0025] Using strontium chloride hexahydrate, zinc chloride and ferric chloride hexahydrate as raw materials, the molar ratio of strontium in strontium chloride hexahydrate: zinc in zinc chloride: iron in ferric chloride hexahydrate is 1: In the ratio of 1:14, add strontium chloride hexahydrate, zinc chloride and ferric chloride hexahydrate into the first container in turn, and then add strontium chloride hexahydrate, zinc chloride and ferric chloride hexahydrate into the first container. The total mass of raw materials (g): the volume (mL) ratio of distilled water is 1: 4.0, add distilled water, stir until strontium chloride hexahydrate, zinc chloride and ferric chloride hexahydrate are all dissolved, and a homogeneous mixed solution is obtained . Us...

Embodiment 2

[0029] A method for preparing a strontium-zinc-iron ternary composite magnetic material, the specific steps of which are as follows:

[0030] (1) Preparation of strontium-zinc-iron ternary composite magnetic material precursor

[0031] With strontium chloride hexahydrate, zinc chloride and ferric chloride hexahydrate as raw materials, the molar ratio of strontium in strontium chloride hexahydrate: zinc in zinc chloride: iron in ferric chloride hexahydrate is 0.5: In the ratio of 0.5:13, add strontium chloride hexahydrate, zinc chloride and ferric chloride hexahydrate into the first container in turn, and then add strontium chloride hexahydrate, zinc chloride and ferric chloride hexahydrate into the first container. The total mass of raw materials (g): the volume (mL) ratio of distilled water is 1: 3.0, add distilled water, stir until strontium chloride hexahydrate, zinc chloride and ferric chloride hexahydrate are all dissolved, and a homogeneous mixed solution is obtained . ...

Embodiment 3

[0035] A method for preparing a strontium-zinc-iron ternary composite magnetic material, the specific steps of which are as follows:

[0036] (1) Preparation of strontium-zinc-iron ternary composite magnetic material precursor

[0037] With strontium chloride hexahydrate, zinc chloride and ferric chloride hexahydrate as raw materials, the molar ratio of strontium in strontium chloride hexahydrate: zinc in zinc chloride: iron in ferric chloride hexahydrate is 1.5: In the ratio of 1.5:15, add strontium chloride hexahydrate, zinc chloride and ferric chloride hexahydrate into the first container in sequence, and then add strontium chloride hexahydrate, zinc chloride and ferric chloride hexahydrate into the first container. The total mass of raw materials (g): the volume (mL) ratio of distilled water is 1: 5.0, add distilled water, stir until strontium chloride hexahydrate, zinc chloride and ferric chloride hexahydrate are all dissolved, and a homogeneous mixed solution is obtained...

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Abstract

The invention discloses a method for preparing a strontium-zinc-iron ternary composite magnetic material, relating to the method for preparing the inorganic composite magnetic material. The method employs strontium chloride, ferric chloride and zinc chloride as raw materials and employs coprecipitation and sintering, and comprises the steps of firstly preparing a composite magnetic material precursor and then obtaining the finished product through sintering. The method for preparing the strontium-zinc-iron ternary composite magnetic material is low in raw material cost, simple in process steps, few in devices utilized and low in production cost; the process flow basically realizes zero emission, which completely accords with the manufacturing philosophy of saving energy and reducing emission and meets the requirements; the composite magnetic material prepared by the method provided by the invention contains a hard magnetic component and a soft magnetic component, and is good in magnetic property, and high in demagnetization resistance or magnetic loss resistance; and the saturation magnetization of the composite magnetic material may reach 34.95 emu / g, while the coercivity thereof may reach 2254.54 G. The method can be widely applied to preparing various composite magnetic materials having excellent magnetic properties; and the composite magnetic materials prepared by the method provided by the invention can be widely applied to industries such as computer, communication, automobile, aerospace, military industry and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of functional materials, and in particular relates to a preparation method of inorganic composite magnetic materials. Background technique [0002] Composite material is a kind of multiphase material with excellent performance, which is made by artificial compounding process of two or more substances with different physical and chemical properties and different forms. Similarly, composite magnetic materials are composed of two or more magnetic components with different properties, and have excellent magnetic properties that a single magnetic component does not have, so they are widely used. [0003] Composite magnetic material is an important basic functional material in the electronics industry, and it is also an emerging multifunctional material. It has important application prospects in industrial fields such as computers, communications, automobiles, aerospace and military industri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/622C04B35/26H01F1/10H01F1/34
Inventor 徐龙君谢太平刘成伦王媛程文霞张莉苏智敏
Owner CHONGQING UNIV
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