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Preparing method for (Fe-Co)-BaTiO3 core-tube complex-phase multiferroic materials

A multiferroic material, fe-co technology, applied in the direction of nanotechnology for materials and surface science, metal material coating process, superimposed layer plating, etc., can solve the limitation of material coercive force and saturation magnetization, There is no problem of improving the magnetic properties of nanowires, which is difficult to improve, and achieves the effects of excellent ferroelectric properties, high success rate, and low environmental pollution

Active Publication Date: 2017-12-19
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this aspect of research, it is currently reported that Fe-Co nanowires are directly deposited on the AAO template. The prepared material has only ferromagnetism, no ferroelectricity, and the coercive force and saturation magnetization of the material are limited. improve
Direct deposition of Fe on AAO templates 7 co 3 , Fe 3 co 7 and Fe 1 co 1 The coercivity of the nanowires in the direction parallel to the nanowires is only 633.17Oe, 564.28Oe and 498.32. By changing the composition of Fe-Co, the magnetic properties of the nanowires are not improved.

Method used

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  • Preparing method for (Fe-Co)-BaTiO3 core-tube complex-phase multiferroic materials
  • Preparing method for (Fe-Co)-BaTiO3 core-tube complex-phase multiferroic materials
  • Preparing method for (Fe-Co)-BaTiO3 core-tube complex-phase multiferroic materials

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Experimental program
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Embodiment 1

[0040] The first step, preprocessing of AAO template

[0041] Place the AAO template at a distance of 2cm from the UV light source for 1 hour and irradiate for 30 minutes on each side of the template; the power of the UV lamp is 50W;

[0042] The second step, BaTiO 3 Sol preparation

[0043] Ba(OH) 2 ·8H 2 O dissolves in CH 3 In COOH, reflux at 65°C for 2 hours under stirring, then cool to room temperature, then add a mixture of tetrabutyl titanate and absolute ethanol dropwise to it under stirring, and after 50 minutes, barium titanate sol solution is obtained;

[0044] Among them, every 34mL of CH 3 Add 17g of Ba(OH) to COOH 2 ·8H 2 0 and 45mL mixed solution; in the mixed solution, tetrabutyl titanate is 15mL, and absolute ethanol is 30mL;

[0045] The third step, BaTiO 3 Preparation of Nanotube / AAO Template Composite Structure

[0046] will contain BaTiO 3 Put the beaker of the sol on the magnetic stirrer, turn on the magnetic stirrer for single-phase rotation, t...

Embodiment 2

[0062] The first step, preprocessing of AAO template

[0063] Place the AAO template at a distance of 4cm from the UV light source for 1 hour and irradiate for 30 minutes on each side of the template, and the power of the UV lamp is 50W;

[0064] The second step, BaTiO 3 Sol preparation

[0065] Ba(OH) 2 ·8H 2 O dissolves in CH 3 In COOH, reflux at 80°C for 2 hours with stirring, then cool to room temperature, then add a mixture of tetrabutyl titanate and absolute ethanol dropwise to it with stirring, and after 45 minutes, barium titanate sol solution is obtained;

[0066] Among them, every 34mL of CH 3 Add 14g of Ba(OH) to COOH 2 ·8H 2 O, and 70mL mixed solution; in the mixed solution, tetrabutyl titanate is 20mL, absolute ethanol is 50mL;

[0067] The third step, BaTiO 3 Preparation of Nanotube / AAO Template Composite Structure

[0068] will contain BaTiO 3 Put the beaker of the sol on the magnetic stirrer, turn on the magnetic stirrer for single-phase rotation, th...

Embodiment 3

[0076] The first step, preprocessing of AAO template

[0077] Put the AAO template at a distance of 3cm from the UV light source and irradiate it for 1.5h, in which each side of the template is irradiated for 0.75h, and the power of the UV lamp is 45W;

[0078] The second step, BaTiO 3 Sol preparation

[0079] Ba(OH) 2 ·8H 2 O dissolves in CH 3 In COOH, reflux at 70°C for 1.6 hours with stirring, then cool to room temperature, then add a mixture of tetrabutyl titanate and absolute ethanol dropwise to it with stirring, and after 39 minutes, a barium titanate sol solution is obtained;

[0080] Among them, every 34mL of CH 3 Add 14g of Ba(OH) to COOH 2 ·8H 2 O, and 60mL mixed solution; in the mixed solution, tetrabutyl titanate is 18mL, absolute ethanol is 42mL;

[0081] The third step, BaTiO 3 Preparation of Nanotube / AAO Template Composite Structure

[0082] will contain BaTiO 3 Put the beaker of the sol on the magnetic stirrer, turn on the magnetic stirrer for single...

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Abstract

The invention discloses a preparing method for (Fe-Co)-BaTiO3 core-tube complex-phase multiferroic materials. The technology of combination of the template method, the sol-gel method and the direct current chemical sedimentation method is adopted, before an Fe-Co nano wire is deposited on an AAO template, a BaTiO3 nano tube is prepared with the hole diameter of the AAO template as an attached body, then, the Fe-Co nano wire is deposited, the BaTiO3 nano tube is a ferroelectric phase, an Fe-Co nano core is a ferromagnetic phase, and the (Fe-Co)-BaTiO3 core-tube complex-phase multiferroic materials are prepared through the piezoelectric effect of the ferroelectric phase and the piezomagnetic effect of the ferromagnetic phase. The technology is simple, cost is low, and the success rate is high. Product hole structure parameters including the diameter, the length and the hole interval can be adjusted, the sintering quality is high, good ferroelectricity and ferromagnetism are achieved, and the (Fe-Co)-BaTiO3 core-tube complex-phase multiferroic materials are suitable for serving as novel complex-phase multiferroic materials.

Description

technical field [0001] The technical solution of the present invention relates to the manufacture of complex-phase multiferroic materials, specifically Fe 3 co 7 -BaTiO 3 、FeCo-BaTiO 3 , Fe 0.28 co 0.72 -BaTiO 3 , Fe 7 co 3 -BaTiO 3 Preparation method of core-tube multiphase multiferroic material. Background technique [0002] With the rapid development of science and technology and the continuous updating of information technology, it is difficult for materials with single performance to meet the current requirements for miniaturization and multi-function of new devices. As a magnetoelectric functional material developed rapidly in recent years, multiferroic materials are coexistence bodies integrating ferromagnetism, ferroelectricity and magnetoelectric coupling characteristics. Its unique magnetoelectric coupling effect, that is, the electric field not only induces electrical polarization but also induces magnetic phase transition, and similarly, the magnetic fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/12C23C14/18C25D3/56C23C28/00B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C23C14/185C23C18/1216C23C18/1245C23C18/1254C23C18/1291C23C28/321C23C28/322C23C28/345C25D3/562
Inventor 杨薇郭晶崔春翔康立丛张袁袁
Owner HEBEI UNIV OF TECH
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