Three-element Co-Zn-Fe alloy of beta-Mn phase and preparation method thereof

A three-element, alloy technology, applied in the field of functional materials, can solve the problem that there is no work report on the three-element CoZnFe alloy, and achieve the effects of easy control of experimental conditions, simple equipment and good uniformity.

Inactive Publication Date: 2017-09-22
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] So far, there have been no reports on the realization of a three-element CoZnFe alloy with a single β-Mn phase, and no patents

Method used

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  • Three-element Co-Zn-Fe alloy of beta-Mn phase and preparation method thereof
  • Three-element Co-Zn-Fe alloy of beta-Mn phase and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] 1) Mix Co powder, Zn powder and Fe powder with a purity of 99.9% in a molar ratio of 2:2:1, and after 4 hours of full grinding, a uniformly distributed powder mixture for preparing CoZnFe alloy is obtained;

[0024] 2) Use mechanical pump equipment to vacuum the quartz glass tube containing the powder mixture for 30 minutes, and then seal the quartz glass tube to keep the vacuum in the tube;

[0025] 3) Put the sealed quartz glass tube containing the sample into the muffle furnace for sintering, and quickly heat up to 1100°C at a rate of 200°C / h, keep this temperature for 12 hours; then cool down to 1025 at a rate of 1°C / h ℃; Keep 75h at 1025℃;

[0026] 4) Finally, take out the quartz glass tube containing the sample at a temperature of 1025℃, quench it in water, and take it out to obtain the prepared CoZnFe sample. The chemical composition of the prepared CoZnFe alloy is Co 8 Zn 8 Fe 4 .

Example Embodiment

[0027] Example 2

[0028] 1) Mix Co powder, Zn powder and Fe powder with a purity of 99.9% in a molar ratio of 4.5:4.5:1, and after 4 hours of full grinding, a uniformly distributed powder mixture for preparing CoZnFe alloy is obtained;

[0029] 2) Use mechanical pump equipment to vacuum the quartz glass tube containing the powder mixture for 30 minutes, and then seal the quartz glass tube to keep the vacuum in the tube;

[0030] 3) Put the sealed quartz glass tube containing the sample into the muffle furnace for sintering, and quickly heat up to 1100°C at a rate of 200°C / h, and keep this temperature for 12 hours; then cool down to the temperature at a rate of 1°C / h 1025℃; keep at 1025℃ for 75h;

[0031] 4) Finally, take out the quartz glass tube containing the sample at a temperature of 1025℃, quench it in water, and take it out to obtain the prepared CoZnFe sample. The chemical composition of the prepared CoZnFe alloy is Co 9 Zn 9 Fe 2 .

[0032] FE-SEM was used to determine the mor...

Example Embodiment

[0034] Example 3

[0035] 1) Mix Co powder, Zn powder and Fe powder with a purity of 99.9% in a molar ratio of 4:5:1, and after 4 hours of full grinding, a uniformly distributed powder mixture for preparing CoZnFe alloy is obtained;

[0036] 2) Use mechanical pump equipment to vacuum the quartz glass tube containing the powder mixture for 30 minutes, and then seal the quartz glass tube to keep the vacuum in the tube;

[0037] 3) Put the sealed quartz glass tube containing the sample into the muffle furnace for sintering, heat it up to 1100°C quickly at a rate of 200°C / h, keep this temperature for 12 hours; then cool it down at a rate of 1°C / h 1025℃; keep at 1025℃ for 75h;

[0038] 4) Finally, take out the quartz glass tube containing the sample at a temperature of 1025℃, quench it in water, and take it out to obtain the prepared CoZnFe sample. The chemical composition of the prepared CoZnFe alloy is Co 8 Zn 10 Fe 2 .

[0039] 1. The invention chooses Co 10 Zn 10 As the parent base, the...

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Abstract

A three-element CoZnFe alloy of β-Mn phase and a preparation method thereof, mixing Co powder, Zn powder and Fe powder with a purity of 99.9% according to the molar ratio of (2~4.5):(2~5):1, After 3-4 hours of full grinding, a uniformly distributed powder mixture is obtained, then vacuumized, and then sealed to keep the vacuum in the tube; put the sealed quartz glass tube with the sample into the muffle furnace for sintering , quickly heat up to 1000-1100°C at a rate of 180-200°C/h, and keep warm for 10-12h; then cool down to 925-1025°C at a rate of 1-1.5°C/h; keep warm at 925-1025°C for 70-75h; Finally, the quartz glass tube containing the alloy sample is taken out, quenched in water, and the three-element CoZnFe alloy sample is taken out. The equipment required by the present invention is simple, and the experimental conditions are easy to control.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a β-Mn phase three-element CoZnFe alloy and a preparation method thereof. Background technique [0002] In recent years, magnetic skyrmions, a novel topologically stable magnetic structure with particle properties, whose special spin alignment leads to a current density driving its state change that is 5–6 orders of magnitude lower than that driving conventional magnetic domains, Therefore, it becomes an ideal candidate material for constructing future high-density, high-speed, low-energy magnetic information storage devices. [0003] According to theoretical predictions and experimental results, there are many crystal structures with skyrmion phases, but there are only a handful of materials with non-centrosymmetric structures that have this kind of magnetic information storage, mainly concentrated in alloys with B20 structure and Multiferroic oxide material Cu 2 ...

Claims

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Application Information

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IPC IPC(8): C22C30/06C22C18/00C22C1/04
CPCC22C30/06C22C1/04C22C1/0433C22C1/0483C22C18/00C22C19/07
Inventor 朱媛媛王红军
Owner SHAANXI UNIV OF SCI & TECH
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