Superconducting material and preparation method thereof

A technology of superconducting materials and substances, applied in the field of materials, which can solve problems such as not ideal and unstable

Active Publication Date: 2015-01-28
SUZHOU POLYMER NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical solution is to achieve superconducting performance through the stabilizing effect of copper element, but the copper superconducting material prepared by this method is not stable. It no longer has good superconducting properties. To regain superconducting properties, it must be prepared according to this method again. Therefore, this method and this superconducting material are not particularly ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] According to the preparation method provided by the present invention to carry out superconducting materials, the preparation steps are as follows:

[0026] (1) configure the nitrate mixed solution of yttrium, aluminum, nickel, lithium and zinc, wherein the molar concentration of yttrium nitrate is 0.1mol / L, the molar concentration of aluminum nitrate is 0.5mol / L, and the molar concentration of nickel nitrate The molar concentration of the substance is 0.1mol / L, that of lithium nitrate is 0.2mol / L, and that of zinc nitrate is 0.3mol / L;

[0027] (2) Add citric acid in the mixed solution, the concentration of the substance of citric acid is 0.3mol / L, and the pH adjustment is 7;

[0028] (3) The above-mentioned mixed solution is heated and concentrated until the gel is completely burned to form a powder;

[0029] (4) Put the powder into a ball mill and grind evenly;

[0030] (5) Put the ground powder into a high-temperature furnace for calcination at a temperature of 120...

Embodiment 2

[0033] According to the preparation method provided by the present invention to carry out superconducting materials, the preparation steps are as follows:

[0034] (1) configure the nitrate mixed solution of yttrium, aluminum, nickel, lithium and zinc, wherein the molar concentration of yttrium nitrate is 0.1mol / L, the molar concentration of aluminum nitrate is 0.9mol / L, and the molar concentration of nickel nitrate The molar concentration of the substance is 0.3mol / L, that of lithium nitrate is 0.6mol / L, and that of zinc nitrate is 0.7mol / L;

[0035] (2) Add citric acid in the mixed solution, the concentration of the substance of citric acid is 0.3mol / L, and the pH adjustment is 7;

[0036] (3) The above-mentioned mixed solution is heated and concentrated until the gel is completely burned to form a powder;

[0037] (4) Put the powder into a ball mill and grind evenly;

[0038] (5) Put the ground powder into a high-temperature furnace for calcination at a temperature of 145...

Embodiment 3

[0041] According to the preparation method provided by the present invention to carry out superconducting materials, the preparation steps are as follows:

[0042] (1) configure the nitrate mixed solution of yttrium, aluminum, nickel, lithium and zinc, wherein the molar concentration of yttrium nitrate is 0.1mol / L, the molar concentration of aluminum nitrate is 0.9mol / L, and the molar concentration of nickel nitrate The molar concentration of the substance is 0.2mol / L, that of lithium nitrate is 0.4mol / L, and that of zinc nitrate is 0.4mol / L;

[0043] (2) add citric acid in mixed solution, the amount concentration of the substance of citric acid is 0.25mol / L, adjusts pH to be 7;

[0044] (3) The above-mentioned mixed solution is heated and concentrated until the gel is completely burned to form a powder;

[0045] (4) Put the powder into a ball mill and grind evenly;

[0046] (5) Put the ground powder into a high-temperature furnace for calcination at a temperature of 1300° C...

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PUM

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Abstract

The invention discloses a superconducting material and a preparation method thereof and relates to the technical field of materials. The superconducting material consists of oxides of yttrium, aluminum, nickel, lithium and zinc, wherein the mass ratio of the yttrium to aluminum to nickel to lithium to zinc is 1:(5-9):(1-3):(2-6):(3-7). The method for preparing the superconducting material comprises the following preparation steps: (1) preparing a nitrate mixed solution; (2) adding citric acid, and regulating pH; (3) combusting sol gel; (4) grinding the powder; and (5) putting the ground powder into a high temperature furnace for calcining, cooling, and taking out the material, thereby obtaining the superconducting material. According to the superconducting material and the preparation method thereof provided by the invention, the superconducting material is a superconductor consisting of metal oxides and consists of five oxides of yttrium, aluminum, nickel, lithium and zinc, and the yttrium-aluminum-nickel-lithium-zinc material has a superconducting phenomenon at high temperature and has relatively high critical temperature.

Description

technical field [0001] The invention belongs to the field of material technology, in particular to a superconducting material and a preparation method thereof. Background technique [0002] A superconducting material refers to a material that exhibits the properties of zero resistance and repelling magnetic lines of force under certain low temperature conditions. It has been found that 28 kinds of elements and thousands of alloys and compounds can become superconductors. [0003] The existing superconducting materials are mainly alloy materials and compounds. The excellent characteristics of superconducting materials have shown attractive application prospects to humans since the day they were discovered. The current applications of superconducting materials mainly include: ①Magnets can be made by using the superconductivity of materials, which can be used in motors, high-energy particle accelerators, magnetic levitation transportation, controlled thermonuclear reactions, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/453C04B35/624
Inventor 翟红波杨振枢韦洪屹
Owner SUZHOU POLYMER NEW MATERIALS TECH
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