WO2022088463A1 - Sub-superconductor material and preparation method therefor - Google Patents
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- 239000000463 material Substances 0.000 title claims abstract description 32
- 239000002887 superconductor Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 58
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 238000001291 vacuum drying Methods 0.000 claims description 6
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- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
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- 239000010949 copper Substances 0.000 description 11
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- 229910052782 aluminium Inorganic materials 0.000 description 5
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
Definitions
- the invention belongs to the technical field of conductive materials, in particular to a sub-superconductor material and a preparation method.
- the present invention provides a metal matrix with multiple layers of graphene, high electrical conductivity, extremely strong electrical conductivity, wider application range, and the graphene can be successfully added to the smelting furnace.
- the present invention adopts the following technical solutions:
- a sub-superconductor material includes a conductive metal matrix, the metal matrix contains multiple layers of graphene, and the content of the graphene is 1PPM-0.2%.
- the sub-superconductor material is prepared from conductive metal A and a graphene additive; wherein, the graphene additive is prepared from graphene, conductive metal B and an organic solvent.
- the particle size of the graphene is 1-10 nm.
- the graphene additive is prepared by the following steps:
- step a2 the mixing time in step a2 is more than 3h, and the rotating speed of the mixer is more than 2000rpm.
- step a3 the rotation speed of the centrifuge is 5000rpm, and the centrifugation time is 1h.
- the drying temperature in step a4 is 120°C
- the drying time is 24h
- the reduction temperature is 200°C
- the reduction time is 30 minutes.
- the present invention also provides a preparation method of the above-mentioned sub-superconductor material, comprising the following steps:
- the graphene additive is added to the molten metal A;
- the sub-superconductor material of the present invention greatly improves the electrical conductivity by forming multiple layers of graphene in the metal matrix, has extremely strong electrical conductivity, and has a wider application range, and can be successfully added to the graphene after the graphene is made into a graphene additive.
- Fig. 1 is the schematic flow sheet of the preparation method of graphene additive in a kind of sub-superconductor material of the present invention
- FIG. 2 is a schematic flowchart of a method for preparing a sub-superconductor material according to the present invention.
- the sub-superconductor material of the present invention includes a conductive metal matrix, the metal matrix contains multiple layers of graphene, and the content of the graphene is 1PPM-0.2%.
- the sub-superconductor material can be prepared from a conductive metal A and a graphene additive; wherein, the metal A can be Al or Cu, and the graphene additive is composed of graphene, a conductive metal B and organic solvent, as shown in Figure 1, the preparation method comprises the following steps:
- Step S102 Add metal B into mixed solution A, and mix with a mixer to obtain mixed solution B; wherein the mixing time is preferably more than 3h, and the rotation speed of the mixer is preferably more than 2000rpm.
- Step S103 Use a centrifuge to centrifuge the mixed solution B, and take off the lower layer of powder A; wherein the rotational speed of the centrifuge is preferably 5000 rpm, and the centrifugation time is preferably 1 h.
- Step S104 After vacuum drying the obtained lower layer powder A (for example: placing the lower layer powder A in a vacuum drying furnace for drying), charging with hydrogen at high temperature for reduction to obtain powder B; wherein the drying temperature is preferably 120°C, The drying time is preferably 24h, the reduction temperature is preferably 200°C, and the reduction time is preferably 30 minutes.
- the drying temperature is preferably 120°C
- the drying time is preferably 24h
- the reduction temperature is preferably 200°C
- the reduction time is preferably 30 minutes.
- Step S105 Add a smelting additive (such as a refiner) to powder B for grinding to obtain powder C;
- a smelting additive such as a refiner
- Step S106 Press the powder C to obtain a graphene additive.
- the preparation method of the sub-superconductor material of the present invention includes the following steps:
- Step S201 Melting the metal A
- Step S202 adding the graphene additive into the molten metal A;
- Step S203 Stirring and heat preservation, and the heat preservation time is preferably 1h.
- the sub-superconductor material of the present invention greatly improves the electrical conductivity by forming multiple layers of graphene in the metal matrix, has extremely strong electrical conductivity, and has a wider application range, and can be successfully added after the graphene is made into a graphene additive. into the molten metal in the smelting furnace.
- Embodiment 1-2
- the present embodiment 1 provides a sub-superconductor material prepared from Al and a graphene additive, wherein the graphene additive is made from graphene, Cu powder and absolute ethanol, and the preparation process is as follows:
- Example 1-2 In the preparation of the superconductor material described in Example 1-2, Al was first put into the melting furnace for melting; then the graphene additive was added to the melting furnace, mixed with the molten Al, and finally stirred and kept for 1 h. Among them, the difference in Examples 1-2 lies in the addition amount.
- the present embodiment 3 provides a sub-superconductor material prepared from Cu and a graphene additive, wherein the graphene additive is made from graphene, Cu powder and absolute ethanol, and the preparation process is as follows:
- the sub-superconductor materials of Examples 1-3 form multilayer graphene in the Al matrix and Cu matrix, and the resistivity is significantly reduced compared with the conventional aluminum sheet, which can greatly improve the electrical conductivity. .
Abstract
A sub-superconductor material and a preparation method therefor. The sub-superconductor material comprises a metal matrix having conductivity. The metal matrix contains multiple layers of graphene, and the content of the graphene is 1 PPM, i.e. 0.2%. By forming the multiple layers of graphene, the conductivity is improved, and the application range is expanded.
Description
本发明属于导电材料技术领域，具体涉及一种亚超导体材料及制备方法。The invention belongs to the technical field of conductive materials, in particular to a sub-superconductor material and a preparation method.
目前，常用的导电材料有银、铜、金、铝、钨、镍、铁、铅等。但是，申请人发现：现有的这些导电材料的电阻率较高，从而使导电率偏低，自身耗能较高，发热量大，使用寿命大大缩短。At present, commonly used conductive materials are silver, copper, gold, aluminum, tungsten, nickel, iron, lead, etc. However, the applicant found that these existing conductive materials have high resistivity, so that the electrical conductivity is relatively low, the energy consumption is high, the heat generation is large, and the service life is greatly shortened.
发明内容SUMMARY OF THE INVENTION
为解决现有技术中存在的上述问题，本发明提供了一种金属基体内部具有多层石墨烯，导电率高，导电性能极强，应用范围更广，且可将石墨烯成功加入到熔炼炉的熔化状态的金属中的亚超导体材料及制备方法。In order to solve the above-mentioned problems existing in the prior art, the present invention provides a metal matrix with multiple layers of graphene, high electrical conductivity, extremely strong electrical conductivity, wider application range, and the graphene can be successfully added to the smelting furnace. A sub-superconductor material in a metal in a molten state and a method for making the same.
为解决上述技术问题，本发明采用如下技术方案：In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:
一种亚超导体材料，包括具有导电性的金属基体，所述金属基体内含有多层石墨烯，所述石墨烯的含量为1PPM～0.2％。A sub-superconductor material includes a conductive metal matrix, the metal matrix contains multiple layers of graphene, and the content of the graphene is 1PPM-0.2%.
进一步地，该亚超导体材料由具有导电性的金属A和石墨烯添加剂制备而成；其中，所述石墨烯添加剂由石墨烯、具有导电性的金属B和有机溶剂制成。Further, the sub-superconductor material is prepared from conductive metal A and a graphene additive; wherein, the graphene additive is prepared from graphene, conductive metal B and an organic solvent.
进一步地，所述石墨烯的粒径为1～10nm。Further, the particle size of the graphene is 1-10 nm.
进一步地，所述石墨烯添加剂采用以下步骤制备而成：Further, the graphene additive is prepared by the following steps:
a1.将石墨烯分散于有机溶剂，得到混合溶液A；a1. Graphene is dispersed in an organic solvent to obtain mixed solution A;
a2.将金属B加入混合溶液A中，并采用混合器进行混合，得到 混合溶液B；a2. Add metal B into mixed solution A, and use a mixer to mix to obtain mixed solution B;
a3.利用离心机对混合溶液B进行离心处理，并取下层粉末A；a3. Centrifuge the mixed solution B with a centrifuge, and remove the lower layer of powder A;
a4.对取得的下层粉末A进行真空干燥后，在高温下充入氢气还原，得到粉末B；a4. After vacuum-drying the obtained lower layer powder A, fill it with hydrogen at a high temperature for reduction to obtain powder B;
a5.在粉末B中加入熔炼添加剂进行研磨，得到粉末C；a5. Add smelting additives to powder B for grinding to obtain powder C;
a6.将粉末C压制成型，得到石墨烯添加剂。a6. Press the powder C to obtain the graphene additive.
进一步地，步骤a2中的混合时间在3h以上，混合器的转速在2000rpm以上。Further, the mixing time in step a2 is more than 3h, and the rotating speed of the mixer is more than 2000rpm.
进一步地，步骤a3中离心机的转速为5000rpm，离心时间为1h。Further, in step a3, the rotation speed of the centrifuge is 5000rpm, and the centrifugation time is 1h.
进一步地，步骤a4中的干燥温度为120℃，干燥时间为24h，还原温度为200℃，还原时间为30分钟。Further, the drying temperature in step a4 is 120°C, the drying time is 24h, the reduction temperature is 200°C, and the reduction time is 30 minutes.
进一步地，所述石墨烯、金属B和有机溶剂的体积比分别为0.28％、14.24％和85.48％。Further, the volume ratios of the graphene, the metal B and the organic solvent are 0.28%, 14.24% and 85.48%, respectively.
进一步地，所述有机溶剂是无水乙醇、1-3丁二醇、水中的一种。Further, the organic solvent is one of absolute ethanol, 1-3 butanediol, and water.
本发明还提供了一种上述亚超导体材料的制备方法，包括有以下步骤：The present invention also provides a preparation method of the above-mentioned sub-superconductor material, comprising the following steps:
b1.将金属A熔化；b1. Melt metal A;
b2.将石墨烯添加剂加入熔化的金属A中；b2. The graphene additive is added to the molten metal A;
b3.搅拌、保温。b3. Stir and keep warm.
本发明主要具有以下有益效果：The present invention mainly has the following beneficial effects:
本发明所述亚超导体材料通过在金属基体内形成多层石墨烯，大大提升了导电率，导电性能极强，应用范围更广，而且通过将石墨烯制成石墨烯添加剂后便可成功加入到熔炼炉的熔化状态的金属中。The sub-superconductor material of the present invention greatly improves the electrical conductivity by forming multiple layers of graphene in the metal matrix, has extremely strong electrical conductivity, and has a wider application range, and can be successfully added to the graphene after the graphene is made into a graphene additive. Metal in the molten state of a smelting furnace.
图1是本发明所述的一种亚超导体材料中石墨烯添加剂的制备方法的流程示意图；Fig. 1 is the schematic flow sheet of the preparation method of graphene additive in a kind of sub-superconductor material of the present invention;
图2是本发明所述的一种亚超导体材料的制备方法的流程示意图。FIG. 2 is a schematic flowchart of a method for preparing a sub-superconductor material according to the present invention.
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
本发明所述的一种亚超导体材料，包括具有导电性的金属基体，所述金属基体内含有多层石墨烯，所述石墨烯的含量为1PPM～0.2％。具体地，该亚超导体材料可以由具有导电性的金属A和石墨烯添加剂制备而成；其中，所述金属A可以是Al或Cu，所述石墨烯添加剂由石墨烯、具有导电性的金属B和有机溶剂制成，如图1所示，制备方法包括以下步骤：The sub-superconductor material of the present invention includes a conductive metal matrix, the metal matrix contains multiple layers of graphene, and the content of the graphene is 1PPM-0.2%. Specifically, the sub-superconductor material can be prepared from a conductive metal A and a graphene additive; wherein, the metal A can be Al or Cu, and the graphene additive is composed of graphene, a conductive metal B and organic solvent, as shown in Figure 1, the preparation method comprises the following steps:
步骤S101.将石墨烯分散于有机溶剂，得到混合溶液A。Step S101. Disperse the graphene in an organic solvent to obtain a mixed solution A.
步骤S102.将金属B加入混合溶液A中，并采用混合器进行混合，得到混合溶液B；其中混合时间优选在3h以上，混合器的转速优选在2000rpm以上。Step S102. Add metal B into mixed solution A, and mix with a mixer to obtain mixed solution B; wherein the mixing time is preferably more than 3h, and the rotation speed of the mixer is preferably more than 2000rpm.
步骤S103.利用离心机对混合溶液B进行离心处理，并取下层粉末A；其中离心机的转速优选为5000rpm，离心时间优选为1h。Step S103. Use a centrifuge to centrifuge the mixed solution B, and take off the lower layer of powder A; wherein the rotational speed of the centrifuge is preferably 5000 rpm, and the centrifugation time is preferably 1 h.
步骤S104.对取得的下层粉末A进行真空干燥后(比如：将下层粉末A放入真空干燥炉中进行干燥)，在高温下充入氢气还原，得到粉末B；其中干燥温度优选为120℃，干燥时间优选为24h，还原温度优选为200℃，还原时间优选为30分钟。Step S104. After vacuum drying the obtained lower layer powder A (for example: placing the lower layer powder A in a vacuum drying furnace for drying), charging with hydrogen at high temperature for reduction to obtain powder B; wherein the drying temperature is preferably 120°C, The drying time is preferably 24h, the reduction temperature is preferably 200°C, and the reduction time is preferably 30 minutes.
步骤S105.在粉末B中加入熔炼添加剂(如：细化剂)进行研磨，得到粉末C；Step S105. Add a smelting additive (such as a refiner) to powder B for grinding to obtain powder C;
步骤S106.将粉末C压制成型，得到石墨烯添加剂。Step S106. Press the powder C to obtain a graphene additive.
而且，所述金属B可以是Al或Cu，所述石墨烯的粒径优选为1～10mm，所述石墨烯、金属B和有机溶剂的体积比分别优选为0.28％、14.24％和85.48％，所述有机溶剂可以为无水乙醇、1-3丁二醇、水中的一种(优选无水乙醇)。Moreover, the metal B may be Al or Cu, the particle size of the graphene is preferably 1-10 mm, and the volume ratios of the graphene, the metal B and the organic solvent are preferably 0.28%, 14.24% and 85.48%, respectively, The organic solvent can be one of absolute ethanol, 1-3 butanediol and water (preferably absolute ethanol).
如图2所示，本发明所述的亚超导体材料的制备方法，包括有以下步骤：As shown in Figure 2, the preparation method of the sub-superconductor material of the present invention includes the following steps:
步骤S201.将金属A熔化；Step S201. Melting the metal A;
步骤S202.将石墨烯添加剂加入熔化的金属A中；Step S202. adding the graphene additive into the molten metal A;
步骤S203.搅拌、保温，保温时间优选为1h。Step S203. Stirring and heat preservation, and the heat preservation time is preferably 1h.
本发明所述的亚超导体材料通过在金属基体内形成多层石墨烯，大大提升了导电率，导电性能极强，应用范围更广，而且通过将石墨烯制成石墨烯添加剂后便可成功加入到熔炼炉的熔化状态的金属中。The sub-superconductor material of the present invention greatly improves the electrical conductivity by forming multiple layers of graphene in the metal matrix, has extremely strong electrical conductivity, and has a wider application range, and can be successfully added after the graphene is made into a graphene additive. into the molten metal in the smelting furnace.
下面通过具体实施例进一步对本发明所述亚超导体材料及制备方法做进一步说明。The sub-superconductor material and the preparation method of the present invention are further described below through specific examples.
实施例1-2：
Embodiment 1-2 :
本实施例1提供了一种亚超导体材料，由Al和石墨烯添加剂制备而成，其中所述石墨烯添加剂由石墨烯、Cu粉末和无水乙醇制成，制备过程如下：The present embodiment 1 provides a sub-superconductor material prepared from Al and a graphene additive, wherein the graphene additive is made from graphene, Cu powder and absolute ethanol, and the preparation process is as follows:
1)将适量的石墨烯分散于无水乙醇，得到混合溶液A；1) Disperse an appropriate amount of graphene in absolute ethanol to obtain mixed solution A;
2)将50g的Cu粉末加入混合溶液A中，并采用混合器以2000rpm以上的转速混合3h以上，得到混合溶液B；2) adding 50 g of Cu powder into mixed solution A, and using a mixer to mix for more than 3 hours at a speed of more than 2000 rpm to obtain mixed solution B;
3)利用离心机在5000rpm的转速下对混合溶液B进行离心处理1h，并取下层粉末A；3) Centrifuge the mixed solution B for 1 h at a rotating speed of 5000 rpm using a centrifuge, and remove the lower layer of powder A;
4)对取得的下层粉末A放入真空干燥炉内，并在120℃下进行真空干燥24h，然后在200℃的高温下充入氢气还原30分钟，得到粉末B；4) Put the obtained lower layer powder A into a vacuum drying furnace, and vacuum-dry it at 120° C. for 24 hours, and then charge it with hydrogen at a high temperature of 200° C. for 30 minutes to reduce to obtain powder B;
5)在粉末B中加入熔炼添加剂进行研磨，得到粉末C；5) adding smelting additives in powder B and grinding to obtain powder C;
6)将粉末C压制成型，得到石墨烯添加剂。6) Pressing the powder C to obtain the graphene additive.
本实施例1-2所述来超导体材料制备时，首先将Al放入熔炼炉进行熔化；接着将石墨烯添加剂加入熔炼炉中，与熔化的Al混合，最后搅拌、保温1h。其中，实施例1-2中的区别在于添加剂量不同。In the preparation of the superconductor material described in Example 1-2, Al was first put into the melting furnace for melting; then the graphene additive was added to the melting furnace, mixed with the molten Al, and finally stirred and kept for 1 h. Among them, the difference in Examples 1-2 lies in the addition amount.
实施例3：
Example 3 :
本实施例3提供了一种亚超导体材料，由Cu和石墨烯添加剂制备而成，其中所述石墨烯添加剂由石墨烯、Cu粉末和无水乙醇制成，制备过程如下：The present embodiment 3 provides a sub-superconductor material prepared from Cu and a graphene additive, wherein the graphene additive is made from graphene, Cu powder and absolute ethanol, and the preparation process is as follows:
1)将适量的石墨烯分散于无水乙醇，得到混合溶液A；1) Disperse an appropriate amount of graphene in absolute ethanol to obtain mixed solution A;
2)将50g的Cu粉末加入混合溶液A中，并采用混合器以2000rpm以上的转速混合3h以上，得到混合溶液B；2) adding 50 g of Cu powder into mixed solution A, and using a mixer to mix for more than 3 hours at a speed of more than 2000 rpm to obtain mixed solution B;
3)利用离心机在5000rpm的转速下对混合溶液B进行离心处理1h，并取下层粉末A；3) Centrifuge the mixed solution B for 1 h at a rotating speed of 5000 rpm using a centrifuge, and remove the lower layer of powder A;
4)对取得的下层粉末A放入真空干燥炉内，并在120℃下进行真空干燥24h，然后在200℃的高温下充入氢气还原30分钟，得到粉末B；4) Put the obtained lower layer powder A into a vacuum drying furnace, and vacuum-dry it at 120° C. for 24 hours, and then charge it with hydrogen at a high temperature of 200° C. for 30 minutes to reduce to obtain powder B;
5)在粉末B中加入熔炼添加剂进行研磨，得到粉末C；5) adding smelting additives in powder B and grinding to obtain powder C;
6)将粉末C压制成型，得到石墨烯添加剂。6) Pressing the powder C to obtain the graphene additive.
本实施例3所述来超导体材料制备时，首先将Cu放入熔炼炉进行熔化；接着将石墨烯添加剂加入熔炼炉中，与熔化的Cu混合，最后搅拌、保温1h。In the preparation of the superconductor material described in Example 3, Cu was first put into the melting furnace for melting; then the graphene additive was added to the melting furnace, mixed with the molten Cu, and finally stirred and kept for 1 hour.
经委托华南理工大学材料学院对实施例1-3以及常规铝片作为对比例进行检测，具体为：通过采用美国量子PPMS-9检测设备检测，检测项目和条件：电阻率(300K)，检测结果如下表1。The School of Materials, South China University of Technology was commissioned to test Examples 1-3 and conventional aluminum sheets as a comparative example, specifically: by using the American Quantum PPMS-9 testing equipment to test, test items and conditions: resistivity (300K), test results Table 1 below.
表1Table 1
从上表可以看出，实施例1-3的亚超导体材料通过在Al基体和Cu基体内形成多层石墨烯，与常规的铝片相比，电阻率明显减小，可大大提升了导电率。As can be seen from the above table, the sub-superconductor materials of Examples 1-3 form multilayer graphene in the Al matrix and Cu matrix, and the resistivity is significantly reduced compared with the conventional aluminum sheet, which can greatly improve the electrical conductivity. .
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can also be made, and these improvements and modifications may also be regarded as It is the protection scope of the present invention.
Claims (10)
- 一种亚超导体材料，其特征在于，包括具有导电性的金属基体，所述金属基体内含有多层石墨烯，所述石墨烯的含量为1PPM～0.2％。A sub-superconductor material is characterized in that it comprises a conductive metal matrix, the metal matrix contains multiple layers of graphene, and the content of the graphene is 1PPM-0.2%.
- 根据权利要求1所述的亚超导体材料，其特征在于，由具有导电性的金属A和石墨烯添加剂制备而成；其中，所述石墨烯添加剂由石墨烯、具有导电性的金属B和有机溶剂制成。The sub-superconductor material according to claim 1, characterized in that, it is prepared from conductive metal A and a graphene additive; wherein the graphene additive is composed of graphene, conductive metal B and an organic solvent production.
- 根据权利要求2所述的亚超导体材料，其特征在于，所述石墨烯的粒径为1～10nm。The sub-superconductor material according to claim 2, wherein the graphene has a particle size of 1-10 nm.
- 根据权利要求2所述的亚超导体材料，其特征在于，所述石墨烯添加剂采用以下步骤制备而成：The sub-superconductor material according to claim 2, wherein the graphene additive is prepared by the following steps:a1.将石墨烯分散于有机溶剂，得到混合溶液A；a1. Graphene is dispersed in an organic solvent to obtain mixed solution A;a2.将金属B加入混合溶液A中，并采用混合器进行混合，得到混合溶液B；a2. Add metal B into mixed solution A, and mix with a mixer to obtain mixed solution B;a3.利用离心机对混合溶液B进行离心处理，并取下层粉末A；a3. Centrifuge the mixed solution B with a centrifuge, and remove the lower layer of powder A;a4.对取得的下层粉末A进行真空干燥后，在高温下充入氢气还原，得到粉末B；a4. After vacuum-drying the obtained lower layer powder A, fill it with hydrogen at a high temperature for reduction to obtain powder B;a5.在粉末B中加入熔炼添加剂进行研磨，得到粉末C；a5. Add smelting additives to powder B for grinding to obtain powder C;a6.将粉末C压制成型，得到石墨烯添加剂。a6. Press the powder C to obtain the graphene additive.
- 根据权利要求4所述的亚超导体材料，其特征在于，步骤a2中的混合时间在3h以上，混合器的转速在2000rpm以上。The sub-superconductor material according to claim 4, wherein the mixing time in step a2 is more than 3h, and the rotating speed of the mixer is more than 2000rpm.
- 根据权利要求4所述的亚超导体材料，其特征在于，步骤a3中离心机的转速为5000rpm，离心时间为1h。The sub-superconductor material according to claim 4, wherein in step a3, the rotating speed of the centrifuge is 5000rpm, and the centrifugation time is 1h.
- 根据权利要求4所述的亚超导体材料，其特征在于，步骤a4中的干燥温度为120℃，干燥时间为24h，还原温度为200℃，还原时间为30分钟。The sub-superconductor material according to claim 4, wherein the drying temperature in step a4 is 120°C, the drying time is 24h, the reduction temperature is 200°C, and the reduction time is 30 minutes.
- 根据权利要求2至7中任一所述的亚超导体材料，其特征在于，所述石墨烯、金属B和有机溶剂的体积比分别为0.28％、14.24％和85.48％。The sub-superconductor material according to any one of claims 2 to 7, wherein the volume ratios of the graphene, the metal B and the organic solvent are 0.28%, 14.24% and 85.48%, respectively.
- 根据权利要求2至7中任一所述的亚超导体材料，其特征在于，所述有机溶剂是无水乙醇、1-3丁二醇、水中的一种。The sub-superconductor material according to any one of claims 2 to 7, wherein the organic solvent is one of absolute ethanol, 1-3 butanediol, and water.
- 一种权利要求1至9中任一所述亚超导体材料的制备方法，其特征在于，包括有以下步骤：A preparation method of sub-superconductor material described in any one of claims 1 to 9, is characterized in that, comprises the following steps:b1.将金属A熔化；b1. Melt metal A;b2.将石墨烯添加剂加入熔化的金属A中；b2. The graphene additive is added to the molten metal A;b3.搅拌、保温。b3. Stir and keep warm.
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