CN108648879A - A method of improving high-temperature superconductor band performance using electrochemical process - Google Patents
A method of improving high-temperature superconductor band performance using electrochemical process Download PDFInfo
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- CN108648879A CN108648879A CN201810276673.8A CN201810276673A CN108648879A CN 108648879 A CN108648879 A CN 108648879A CN 201810276673 A CN201810276673 A CN 201810276673A CN 108648879 A CN108648879 A CN 108648879A
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- temperature superconductor
- protective layer
- superconductor band
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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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
- H01B12/02—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by their form
- H01B12/06—Films or wires on bases or cores
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
The invention discloses a kind of methods improving high-temperature superconductor band performance using electrochemical process, including following process:A) organic solution is prepared;B) protective layer of high-temperature superconductor band sample is removed;C) the high-temperature superconductor band of protective layer has been removed using the organic solution electrochemical treatments of configuration;D) electrochemical process treated high-temperature superconductor band sample is taken out, and is dried;E) high-temperature superconductor band sample surfaces after the drying deposit protective layer;F) the high-temperature superconductor band sample for depositing matcoveredn is subjected to logical oxygen annealing.The method of the present invention can significantly improve the performances such as the superconducting transition temperature of high-temperature superconductor band, critical current density.Simultaneously this method it is simple, it is easily operated, repeat completely it is controllable.
Description
Technical field
The present invention relates to high temperature superconducting materia more particularly to a kind of improving high-temperature superconductor band performance using electrochemical process
Method.
Background technology
China is vast in territory, populous, and is in the period of industrialization, urbanization rapid development, energy-consuming
Intensity is high.But the energy in China, especially non-renewable energy relative shortage.As economic scale further expands, to the energy
Supply forms very big pressure, and disparities between supply and demand are by long-term existence.And electric energy is as one of most important energy in people's daily life,
Loss in transmission process is surprising, and about 10 electric energy is consumed in transmission process in a manner of thermal energy.
If replacing common copper wire to be used as conducting wire using high-temperature superconductor band, electric energy can be eliminated in transmission process
In loss, this is for solving the problems, such as that the current energy relative shortage in China plays an important role.As high-temperature superconductor band
Most important two parameters, superconducting transition temperature and critical current density are also that two on superconducting tape functionization road are main
Obstacle.High superconducting transition temperature and big critical current density are always the target that superconduction research workers pursue.
Just since the performance of high-temperature superconductor band directly affects the practical application of high-temperature superconductive cable, find simple and effective
The method for improving high-temperature superconductor band performance becomes to be even more important.
Therefore, those skilled in the art is dedicated to developing a kind of simple and effective side for improving high-temperature superconductor band performance
Method improves its performance on the basis of not changing its original structure.
Invention content
In view of the prior art for improve high-temperature superconductor band performance there is an urgent need to and the prior art defect, this
The technical problems to be solved by the invention are to provide a kind of method improving high-temperature superconductor band performance.
To achieve the above object, the present invention provides a kind of sides for improving high-temperature superconductor band performance using electrochemical process
Method, including following process:
A) organic solution is prepared;
B) protective layer of high-temperature superconductor band sample is removed;
C) the high-temperature superconductor band of protective layer has been removed using the organic solution electrochemical treatments of configuration;
D) electrochemical process treated high-temperature superconductor band sample is taken out, and is dried;
E) high-temperature superconductor band sample surfaces after the drying deposit protective layer;
F) the high-temperature superconductor band sample for depositing matcoveredn is subjected to logical oxygen annealing.
Further, in the process a), the organic solution chooses the organic reagents such as acetone, methanol, ethyl alcohol or ether
Any one of.
Optionally, in the process a), the organic solution be acetone, methanol, ethyl alcohol and ether in arbitrary two kinds or
It is a variety of to be uniformly mixed with arbitrary proportion.
Organic reagent volatilizees in order to prevent, and prepared solution is needed to be sealed with tinfoil, is placed at aeration-drying.Wherein,
Sealing solution is placed in ventilated environment, is the environmental pollution for causing confined space in order to avoid the organic gas of leakage;It will be close
Envelope solution is placed in dry environment, is in order to avoid the moisture in air causes the dilution of solution and goes bad.
Further, in the process b), first by ammonium hydroxide and hydrogen peroxide according to 1:2 to 2:Arbitrary proportion in 1 range
It is configured to mixed solution;Then high-temperature superconductor band sample is placed in the mixed solution of hydrogen peroxide and ammonium hydroxide, protective layer is made to fill
Divide dissolving;Then after the completion of layer dissolving to be protected, the high-temperature superconductor band sample for having removed protective layer is taken out, and be dried;
Wherein, the protective layer is silver.
Optionally, copper protective layer can also have been deposited on the silver-colored protective layer of high-temperature superconductor band.In general, it can use dilute
Hydrochloric acid removes copper protective layer.
Further, the high-temperature superconductor band sample in the process b) is by magnetron sputtering method, pulsed laser deposition
Among method, deposition of metal organic method or metal-organic chemical vapor deposition equipment method are grown in NiW base band or stainless steel base band
Then layer utilizes magnetron sputtering method, pulsed laser deposition, deposition of metal organic method or metal-organic chemical vapor deposition equipment
Method grows high-temp. superconducting layer on the middle layer;Then utilize magnetron sputtering method, pulsed laser deposition, metallorganic heavy
Area method or metal-organic chemical vapor deposition equipment method deposit protective layer on the high-temp. superconducting layer, to be prepared;It is described
Middle layer includes one or more in aluminium oxide, yttrium oxide, magnesia, lanthanum manganate, zirconic acid lanthanum or cerium oxide.
Further, in the process c), the electrochemical treatments are:
One pole of the high-temperature superconductor band and power supply that have removed protective layer is connected, another pole and the silver electrode of power supply connect
It connects;
Then, the high-temperature superconductor band for having deprotected layer is put into togerther with silver electrode in the organic solution and is powered
Processing.
Further, in energization processing procedure, power-on voltage can be 0.1~200 volt, and conduction time can be 1s~for 24 hours.It is excellent
Selection of land, power-on voltage can be 10~100 volts, and conduction time can be 10s-10h.It is highly preferred that power-on voltage can be 10 volts, it is powered
Time can be 30s.
It can be selected and regulating power source voltage and conduction time according to the size and type of pending sample.In general,
Conduction time can be reduced with the raising of power-on voltage.
Further, the drying is to dry up or be placed in baking oven using hair dryer to dry.
Further, in the process e), magnetron sputtering method, pulsed laser deposition, deposition of metal organic method are utilized
Or the high-temperature superconductor band sample surfaces of metal-organic chemical vapor deposition equipment method after the drying deposit protective layer, protective layer must sink
Product thickness is 0.1~10 micron.Preferably 1~5 micron, more preferably 1~2 micron.Protective layer can be single silver or
The silver-colored protective layer and/or copper protective layer being sequentially depositing.
Further, in the process e), annealing temperature is 400~600 degrees Celsius.
Further, the high-temperature superconductor band be REBCO high-temperature superconductor bands, wherein REBCO be YBCO, GdBCO,
SmBCO or NdBCO.
It can be seen that the embodiment of the present invention improves high-temperature superconductor band performance using electrochemical process, in processing procedure,
It only needs to remove to be immersed in organic solution after protective layer by high-temperature superconductor band effectively improve its superconducting transition temperature
And critical current density, method is simple, it is easily operated, repeat completely it is controllable.
Description of the drawings
Fig. 1 is the structural schematic diagram of the high-temperature superconductor band of the embodiment of the present invention one.
Fig. 2 is according to an embodiment of the invention one method for improving YBCO high-temperature superconductor band performances using electrochemical process
Schematic diagram.
Fig. 3 is the one YBCO high-temperature superconductors band handled using electrochemical process and without electricity according to an embodiment of the invention
The performance comparison figure of the YBCO high-temperature superconductor bands of chemical Treatment.
Specific implementation mode
Embodiment one
The present embodiment is a kind of method improving YBCO high-temperature superconductor band performances using electrochemical process, wherein high temperature is super
The structural schematic diagram of conduction band material is as shown in Figure 1, including substrate 1, middle layer 2, REBCO high-temp. superconducting layers 3, protective layer 4 etc..It is intermediate
Layer 2 includes one or more in aluminium oxide, yttrium oxide, magnesia, lanthanum manganate, zirconic acid lanthanum or cerium oxide.Protective layer 4 includes silver
Protective layer.In other embodiments, copper protective layer can be also deposited on silver-colored protective layer.
The method for improving YBCO high-temperature superconductor band performances using electrochemical process of the present embodiment, including following process:
1,500 milliliters of acetone are poured into beaker, beaker mouth is sealed with tinfoil, be placed on spare at aeration-drying.
2, it by each 30 milliliters of ammonium hydroxide and hydrogen peroxide, pours into another beaker and is uniformly mixed, seal beaker mouth with tinfoil, be placed on
It is spare at aeration-drying.
3, it takes 10 centimetres of YBCO high-temperature superconductor bands as sample, and the sample is completely immersed in and fills uniformly mixed ammonia
In the beaker of water and hydrogen peroxide, until all dissolvings of surface silver.Wherein, which is to pass through pulsed laser deposition
Method is in C276/Al2O3/Y2O3/MgO/CeO2YBCO high-temp. superconducting layers are deposited on substrate, and using magnetron sputtering method in YBCO high
Plated silver finish is steamed on temperature superconductive layer and is made.
4, it goes the sample of desilver protective layer to take out step 3, and utilizes hair dryer to dry up sample surfaces rapidly.
5, the sample of step 45 is connect into power cathode, positive pole uses silver electrode 6, sample 5 and silver electrode 6 are put simultaneously
It is placed in the acetone soln 7 described in step 1 and carries out energization processing, as shown in Figure 1.Power-on voltage is 10 volts, and conduction time is 30 seconds.
6, the sample in step 5 is taken out, and utilizes hair dryer to dry up sample surfaces, the sample handled rapidly.
7,2 microns thick of silver-colored protective layer is deposited using sample surfaces of the magnetron sputtering after step 6 drying.
8, sample that vapor deposition is had to silver-colored protective layer, is put into box Muffle furnace and makes annealing treatment, and annealing temperature is 400 Celsius
Degree.Oxygen is passed through in furnace body simultaneously, sample is made to be in oxygen atmosphere.
Required sample is obtained after annealing.
Fig. 2 is the YBCO high-temperature superconductor bands prepared using same process, is handled through electrochemical process and without electrochemical process
Treated superconducting transition temperature comparison diagram.As it can be seen that by electrochemical process treated the YBCO hts bands of the present embodiment
The superconducting transition temperature of material significantly improves, and in other words, the utilization electrochemical process of the present embodiment prepares YBCO high-temperature superconductor band energy
Enough effectively improve its superconductivity.Also, in processing procedure, it is only necessary to go after silver to be immersed in by high-temperature superconductor band organic molten
Its superconducting transition temperature and critical current density can be effectively improved in liquid, simple, easily operated, the complete repetition of method can
Control.
Optionally, organic solution can be chosen for any of methanol, ethyl alcohol or ether.
Embodiment two
The present embodiment is a kind of method improving high-temperature superconductor band performance using electrochemical process, including following process:
1, organic solvents-acetone and each 200 milliliters of methanol are taken, pours into beaker and is sufficiently mixed, beaker is sealed with tinfoil
Mouthful, it is placed on spare at aeration-drying.
2, it by each 50 milliliters of ammonium hydroxide and hydrogen peroxide, pours into another beaker and is uniformly mixed, seal beaker mouth with tinfoil, be placed on
It is spare at aeration-drying.
3, it takes 20 centimetres of YBCO high-temperature superconductor bands as sample, and the sample is completely immersed in and fills uniformly mixed ammonia
In the beaker of water and hydrogen peroxide, until all dissolvings of surface silver.Wherein, which is to pass through pulsed laser deposition
Method deposited oxide cerium middle layer, YBCO high-temp. superconducting layers in NiW base band successively, and it is super in YBCO high temperature using magnetron sputtering method
Plated silver finish is steamed on conducting shell and is made.
4, it goes the sample of desilver protective layer to remove step 3, and utilizes hair dryer to dry up sample surfaces rapidly.
5, the sample of step 4 is connect into power cathode, positive pole uses silver electrode, sample and silver electrode are positioned over simultaneously
Acetone soln described in step 1 carries out energization processing, as shown in Figure 1.Power-on voltage is 10 volts, and conduction time is 30 seconds.
6, the sample in step 5 is taken out, and utilizes hair dryer to dry up sample surfaces, the sample handled rapidly.
7,2 microns thick of silver-colored protective layer is deposited using sample surfaces of the magnetron sputtering after step 6 drying.
8, sample that vapor deposition is had to silver-colored protective layer, is put into box Muffle furnace and makes annealing treatment, and annealing temperature is 600 Celsius
Degree.Oxygen is passed through in furnace body simultaneously, sample is made to be in oxygen atmosphere.
Required sample is obtained after annealing.
Optionally, organic solution can choose in acetone, methanol, ethyl alcohol and ether it is arbitrary two or more, arbitrarily to compare
Example is mixed.
In above-mentioned any embodiment, optionally, power-on voltage can be 0.1~200 volt, and conduction time can be 1s~for 24 hours.
Preferably, power-on voltage can be 10~100 volts, and conduction time can be 10s~10h.Wherein conduction time can be with power-on voltage
It increases and reduces.
Optionally, positive (negative) pole of YBCO high-temperature superconductors band sample connection power supply, power supply bear (just) pole and connect silver electrode.
Optionally, the method for the dry YBCO high-temperature superconductor bands taken out from organic solution can also use baking oven to dry
Deng.It in some cases, can also be by the way of naturally dry.
Optionally, ammonium hydroxide and hydrogen peroxide are according to 1:2 to 2:Arbitrary proportion in 1 range is configured to mixed solution.It is excellent
Selection of land, ammonium hydroxide and hydrogen peroxide are with 1:1 proportional arrangement is at mixed solution.
Optionally, YBCO high-temperature superconductors band sample is by magnetron sputtering method, pulsed laser deposition, metallorganic
Sedimentation or metal-organic chemical vapor deposition equipment method grow middle layer in NiW base band or stainless steel base band, then utilize magnetic
Sputtering method, pulsed laser deposition, deposition of metal organic method or metal-organic chemical vapor deposition equipment method are controlled in the centre
REBCO high-temp. superconducting layers are grown on layer;Then utilize magnetron sputtering method, pulsed laser deposition, deposition of metal organic method or
Metal-organic chemical vapor deposition equipment method deposition of silver protective layer on the REBCO high-temp. superconducting layers, to be prepared.
Optionally, magnetron sputtering method, pulsed laser deposition, deposition of metal organic method or metal organic-matter chemical are utilized
The high-temperature superconductor band sample surfaces deposition of silver protective layer of vapour deposition process after the drying, it is 0.1 that silver-colored protective layer, which obtains deposition thickness,
~10 microns.
Optionally, the equipment of annealing is Muffle furnace, and annealing temperature is 400~600 degrees Celsius, it is therefore preferable to which 500 take the photograph
Family name's degree.
Optionally, high-temperature superconducting thin film can also be GdBCO, SmBCO or NdBCO etc..
It can be seen that the embodiment of the present invention improves high-temperature superconductor band performance using electrochemical process, in processing procedure,
Its superconducting transition temperature and critical can effectively be improved by only needing to go after silver to be immersed in organic solution by high-temperature superconductor band
Current density, method is simple, it is easily operated, repeat completely it is controllable.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of method improving high-temperature superconductor band performance using electrochemical process, which is characterized in that including following process:
A) organic solution is prepared;
B) protective layer of high-temperature superconductor band sample is removed;
C) the high-temperature superconductor band of protective layer has been removed using the organic solution electrochemical treatments of configuration;
D) electrochemical process treated high-temperature superconductor band sample is taken out, and is dried;
E) high-temperature superconductor band sample surfaces after the drying deposit protective layer;
F) the high-temperature superconductor band sample for depositing matcoveredn is subjected to logical oxygen annealing.
2. according to the method described in claim 1, it is characterized in that, in the process a), the organic solution chooses acetone, first
Any one of alcohol, ethyl alcohol or ether organic reagent.
3. according to the method described in claim 1, it is characterized in that, in the process a), the organic solution is acetone, first
In alcohol, ethyl alcohol and ether it is arbitrary two or more with arbitrary proportion be uniformly mixed.
4. according to the method described in claim 1, it is characterized in that, in the process b), first by ammonium hydroxide and hydrogen peroxide according to
1:2 to 2:Arbitrary proportion in 1 range is configured to uniformly mixed solution;Then high-temperature superconductor band sample is placed in hydrogen peroxide
In the mixed solution of ammonium hydroxide, protective layer is made fully to dissolve;Then after the completion of layer dissolving to be protected, taking-up has removed protective layer
High-temperature superconductor band sample, and be dried;
Wherein, the protective layer is silver.
5. according to the method described in claim 1, it is characterized in that, the high-temperature superconductor band sample in the process b) is to pass through
Magnetron sputtering method, pulsed laser deposition, deposition of metal organic method or metal-organic chemical vapor deposition equipment method are in NiW base band
Or middle layer is grown in stainless steel base band, then utilize magnetron sputtering method, pulsed laser deposition, deposition of metal organic method or
Metal-organic chemical vapor deposition equipment method grows high-temp. superconducting layer on the middle layer;Then magnetron sputtering method, pulse are utilized
Laser deposition, deposition of metal organic method or metal-organic chemical vapor deposition equipment method deposit guarantor on the high-temp. superconducting layer
Sheath, to be prepared;The middle layer includes in aluminium oxide, yttrium oxide, magnesia, lanthanum manganate, zirconic acid lanthanum or cerium oxide
It is one or more.
6. according to the method described in claim 1, it is characterized in that, in the process c), the electrochemical treatments are:It will go
Except the high-temperature superconductor band of protective layer and a pole of power supply connect, another pole of power supply is connect with silver electrode;Then, it will remove
It is placed in the organic solution together with the high-temperature superconductor band and silver electrode of protective layer and carries out energization processing.
7. according to the method described in claim 6, it is characterized in that, in energization processing procedure, power-on voltage is 0.1~200 volt,
Conduction time is 1s~for 24 hours.
8. method according to claim 1 or 4, which is characterized in that the drying is to dry up or be placed in baking using hair dryer
Case is dried.
9. according to the method described in claim 1, it is characterized in that, in the process e), magnetron sputtering method, pulse laser are utilized
The high-temperature superconductor band sample table of sedimentation, deposition of metal organic method or metal-organic chemical vapor deposition equipment method after the drying
Face deposits protective layer, and the protective layer is single silver or the silver-colored protective layer and/or copper protective layer that are sequentially depositing, the protective layer
Deposition thickness be 0.1~10 micron.
10. according to the method described in claim 1, it is characterized in that, the high-temperature superconductor band is REBCO hts bands
Material, wherein REBCO are YBCO, GdBCO, SmBCO or NdBCO.
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CN115372188A (en) * | 2022-09-23 | 2022-11-22 | 兰州大学 | Second-generation high-temperature superconducting tape interface strength testing method based on scratch method |
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