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Preparation for ferroelectric-ferromagnetic composite nano-fiber

A composite nanofiber and ferroelectric technology, which is applied in fiber treatment, spinning solution preparation, filament/wire forming, etc., can solve the problems of complex process, non-continuous production, easy introduction of impurities, etc., and achieve simple process, The effect of convenient operation and broad application prospects

Inactive Publication Date: 2008-10-01
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of the existing magnetoelectric composite nanofiber preparation technology, such as complicated process, high cost, easy introduction of impurities and inability to produce continuously, and provide a low-cost, simple, convenient and continuous production method for preparing iron Method for Electromagnetic Composite Nanofibers

Method used

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  • Preparation for ferroelectric-ferromagnetic composite nano-fiber
  • Preparation for ferroelectric-ferromagnetic composite nano-fiber
  • Preparation for ferroelectric-ferromagnetic composite nano-fiber

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Use an electronic balance to weigh lead acetate, tetrabutyl titanate and zirconium nitrate, respectively, 0.2276g, 0.0980g and 0.1340g according to the molar ratio of Zr and Ti being 52:48. Lead acetate is dissolved in glacial acetic acid and added to tetratitanate In the ethylene glycol methyl ether solution of butyl ester and zirconium nitrate, the volume ratio of ethylene glycol methyl ether to glacial acetic acid is 5:1, and the 0.3 mol / L PZT precursor solution A is obtained by static filtration. Weigh cobalt nitrate, ferric nitrate and citric acid respectively according to the molar ratio of Co, Fe and citric acid as 1:2:3, 0.1746g, 0.4855g and 0.3780g, dissolve in the mixed solution of ethanol and water, ethanol and water The volume ratio of the ferromagnetic precursor is controlled at about 2:1, and the ferromagnetic precursor solution B of 0.3 mol / L is obtained by static filtration. Add solution A to B, and at the same time add 2ml of a solution dissolving 0.150...

Embodiment 2

[0028] Use an electronic balance to weigh lead acetate, tetrabutyl titanate and zirconium nitrate, respectively, 0.2276g, 0.0980g and 0.1340g according to the molar ratio of Zr and Ti being 52:48. Lead acetate is dissolved in glacial acetic acid and added to tetratitanate In the ethylene glycol methyl ether solution of butyl ester and zirconium nitrate, the volume ratio of ethylene glycol methyl ether to glacial acetic acid is 5:1, and the 0.3 mol / L PZT precursor solution A is obtained by static filtration. Weigh nickel nitrate, iron nitrate and citric acid respectively according to the molar ratio of Co, Fe and citric acid as 1:2:3, 0.1745g, 0.4855g and 0.3780g, dissolve in the mixed solution of ethanol and water, ethanol and water The volume ratio of the ferromagnetic precursor is controlled at about 2:1, and the ferromagnetic precursor solution B of 0.3 mol / L is obtained by static filtration. Add solution A to B, and at the same time add 2ml of a solution dissolving 0.175g ...

Embodiment 3

[0030] Use an electronic balance to weigh lead acetate, tetrabutyl titanate and zirconium nitrate, respectively, 0.2276g, 0.0980g and 0.1340g according to the molar ratio of Zr and Ti being 52:48. Lead acetate is dissolved in glacial acetic acid and added to tetratitanate In the ethylene glycol methyl ether solution of butyl ester and zirconium nitrate, the volume ratio of ethylene glycol methyl ether to glacial acetic acid is 5:1, and the 0.3 mol / L PZT precursor solution A is obtained by static filtration. Weigh cobalt nitrate, ferric nitrate and citric acid respectively according to the molar ratio of Co, Fe and citric acid as 1:2:3, 0.1310g, 0.3641g and 0.2835g, dissolve in the mixed solution of ethanol and water, ethanol and water The volume ratio of the ferromagnetic precursor is controlled at about 2:1, and the ferromagnetic precursor solution B of 0.3 mol / L is obtained by static filtration. Add solution A to B, and at the same time add 2.5ml of a solution of dissolving ...

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Abstract

The invention provides a method that can successively produce ferroelectric and ferromagnetic composite nano fiber, is simple, convenient and low in cost and comprises the following processing steps: (1) ferroelectric precursor solution is prepared; (2) ferromagnetic precursor solution is prepared; (3) ferroelectric and ferromagnetic composite solution is prepared; (4) electrostatic spinning is adopted to prepare the ferroelectric and ferromagnetic composite nano fiber; (5) roasting is carried out to obtain the ferroelectric and ferromagnetic composite nano fiber with stable performances. The ferroelectric and ferromagnetic composite nano fiber provided by the invention can ensure uniform composition of ferroelectric phase and ferromagnetic phase in the molecular scale and even in the atomic scale and greatly increase contact area, thus resulting in higher magneto-electric coupling coefficient; the technique of the invention has broad application prospects in fields such as a convertor, an attenuator, a filter, a probe, a spin valve and a biconditional storage unit, etc.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a method for preparing a novel ferroelectric and ferromagnetic composite memory material. Background technique [0002] Ferroelectric-ferromagnetic composite material is a new material with magnetoelectric conversion function. Its magnetoelectric conversion function is realized by the product effect of ferroelectric phase and ferromagnetic phase. This product effect is the magnetoelectric coupling effect. The unique magnetoelectric coupling effect of ferroelectric-ferromagnetic composite materials has opened up broad application prospects for it, making it widely used in the microwave field, current measurement of high-voltage transmission lines, wide-band magnetic detection, magnetic field sensors, converters, attenuators, Filters, field probes, spin valves and two-state memories have great application potential, especially in the precise measurement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/26C04B35/472C04B35/491C04B35/622D01D5/00D01D1/02
Inventor 谢淑红李江宇刘运牙周益春
Owner XIANGTAN UNIV
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