CN110060815A - A kind of high-temperature superconductor ReBCO cable structure production method applied to CICC - Google Patents
A kind of high-temperature superconductor ReBCO cable structure production method applied to CICC Download PDFInfo
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- CN110060815A CN110060815A CN201910317378.7A CN201910317378A CN110060815A CN 110060815 A CN110060815 A CN 110060815A CN 201910317378 A CN201910317378 A CN 201910317378A CN 110060815 A CN110060815 A CN 110060815A
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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
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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 high-temperature superconductor ReBCO cable structure production methods applied to CICC, using the ReBCO superconducting tape of superposition, copper/aluminium filling tape, copper-clad band and the superconducting tape of spiral form a round superconduction cable architecture together, its high critical current that can either meet large-scale magnet, high current carrying density requirement, there are the Deformation Demands such as the bending in good mechanical property and magnet manufacturing process again, more importantly compare existing ReBCO CICC superconductive cable design in the world, engineering critical current density is improved 20% or more (for small-sized ReBCO CICC superconductive cable by the present invention, engineering critical current density maximum lift can be more than one times of the superconductive cable developed in the world at present), superconduct to solve ReBCO superconducting tape in CICC type The cable process problem encountered in cable application process, and two generation high-temperature superconductors are further decreased in large-scale conductor using upper cost.
Description
Technical field
The present invention relates to a kind of high-temperature superconductor ReBCO cable structure production methods applied to CICC, belong to cables manufacturing
Technical field.
Background technique
Cable-in-conduit conductor (Cable-In-Conduit-Condctor, CICC) is due to good rigidity and machinery
The advantages that stability, lower A.C.power loss and low-temperature cooling media needed for running few, has high current and fast in fusion etc.
It is widely adopted in the device of fast variation magnetic field operation demand.That CICC is generallyd use at present is NbTi and Nb3Two kinds of superconductions of Sn
Material.Wherein NbTi superconductor 4.2K upper critical field is 11T, therefore NbTi CICC conductor is mainly used in the manufacture of low field magnet；
Nb3Although upper critical field may be up to 27T under 4.2K, current-carrying performance can decline Sn superconductor as the raising in magnetic field is very fast
Subtract, along with it is with very strong ess-strain current-carrying degradation characteristics, therefore it is widely used in big current-carrying and magnetic field is strong at present
Degree is lower than the magnet development of 15T.However along with the fast development of superconducting magnet technology, domestic and international large scientific instrument and device
Demand to high field magnet is growing day by day.As following fusion demonstration reactor DEMO requires magnetic field to be higher than 15T, the China designed at present
Fusion demonstration reactor CFETR Centric solenoid modal coil magnetic field strength demand is 17T, and the following high energy acclerator magnetic field strength be up to 20T with
On.Therefore, the CICC conductor of existing cryogenic superconductor is not able to satisfy application demand at present.
Demand and practical superconductor progress based on devices such as fusion reactor, accelerators to high field magnet, people
Turned one's attention under High-Field with high current-carrying performance two generation high temperature superconducting materia ReBCO, 4.2K, 40T download
Fluidity can be almost undamped (compared under the magnetic field 10T), and the high current-carrying ReBCO CICC conductor for developing High-Field application is to solve not
Carry out one of the effective way of high field magnet demand.In addition, it can carry high current under 77K high-intensity magnetic field, it is really to be able to
The superconductor run under liquid nitrogen temperature.Therefore, the design of large-scale ReBCO CICC conductor and research and development will also substantially reduce device
Operating cost, bring certain economic benefit.
However, ReBCO, as second generation coating conductor, band is its main application form.Widely applied CICC is led
What body technique used is isotropic superconducting wire, with anisotropic ReBCO band to the design of CICC superconductive cable
Certain difficulty is brought with developing.Currently, based on YBCO band and being contemplated that be ReBCO CICC superconducting line/cable structure
There are mainly three types of, respectively superconduction bandlet transposition (Roebel) composite conductor, superconduction distortion stack (TSTC) composite conductor and
Spiral shape composite conductor (CORC), these three structure composite conductors respectively have advantage and disadvantage, and wherein Roebel cable is using more bands
Material is worked out, and width is much larger than normal cable, however has limitation to magnet manufacture bending process；It is compound to distort heap stacked strips
Structure is will to be fixed after more band heap poststack steel wire bundles using scolding tin, such structure performance after by electromagnetic force
It fails larger, and the thickness stacked is larger, can only be wound on the biggish cylindrical body of radius or polygon cylinder；Spiral shape is multiple
Closing conductor is to be wound in superconducting tape on solid core material, and coated on the outside with insulating materials, in view of ReBCO band
Stress-strain characteristics, core material need to reach certain size, and then can reduce the engineering current density of CICC conductor.Needle at present
The approval structure ununified to the ReBCO superconductive cable suitable for CICC, but target is exactly both to have high current-carrying performance and machine
Tool performance, while being also able to satisfy Large Magnetic body manufacture demand.
Goal of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of round wires structures suitable for ReBCO CICC superconductive cable.Mainly
One round superconducting line is formed using the superconducting tape of superposition, copper/aluminium filling tape, copper-clad band and spiral superconducting tape together
Structure can either meet the high critical current of large-scale magnet, high current carrying density requirement, and have good mechanical property and magnetic
The Deformation Demands such as the bending during body manufacture, it is often more important that existing ReBCO CICC superconductive cable design in the world is compared,
Engineering critical current density is improved 20% or more by the present invention, and (for small-sized ReBCO CICC superconductive cable, engineering critical current is close
Degree maximum lift can be more than one times of the superconductive cable developed in the world at present), to solve ReBCO superconducting tape in CICC type
The cable process problem encountered in hyperconductive cable application process, and two generation high-temperature superconductors are further decreased in large-scale conductor application
On cost.
Summary of the invention
The present invention provides a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC, using two generation high temperature
Superconduction ReBCO band, copper/compositions such as aluminium filling tape and copper strips/copper wire are suitable for the ReBCO round wires of CICC type hyperconductive cable
Cable.
The technical solution adopted by the present invention is that:
A kind of high-temperature superconductor ReBCO cable structure production method applied to CICC, it is characterised in that include the following steps:
(1) width is used to be superimposed as square structure for 1-6mm, with a thickness of the ReBCO superconducting tape of 0.05-0.1mm；
(2) it fills in the four edges of square structure Cu/Al arc filling tape with made of, so that its periphery becomes round knot
Structure, wherein the material of arc filling tape and size can be selected according to final cable bulk and requirement of mechanical strength；
(3) the outer helical winding single layer of the circular configuration constituted in filling arc filling tape or multi-layer C u/Al band are formed
Core, the outer diameter of core is between 1-20mm；
(4) according to current-carrying performance requirement, ReBCO superconducting tape is wound in the outer helical of Cu/Al band.
A kind of high-temperature superconductor ReBCO cable structure production method applied to CICC, it is characterised in that include the following steps:
(1) it uses width for 1-6mm, is folded with a thickness of ReBCO superconducting tape and the Cu/Al band or Cu/Al line of 0.05-0.1mm
Addition square structure, can be according to the ReBCO superconduction of specific current-carrying and operation stress condition selection single layer or multiple-layer stacked
Single-layer or multi-layer Cu/Al band or the filling of Cu/Al line are carried out among band；
(2) it fills in the four edges of square structure Cu/Al arc filling tape with made of, so that its periphery becomes round knot
Structure, wherein the material of arc filling tape and size can be selected according to final cable bulk and requirement of mechanical strength；
(3) the outer helical winding single layer of the circular configuration constituted in filling arc filling tape or multi-layer C u/Al band are formed
Core, the outer diameter of core is between 1-20mm；
(4) according to current-carrying performance requirement, ReBCO superconducting tape is wound in the outer helical of Cu/Al band.
A kind of high-temperature superconductor ReBCO cable structure production method applied to CICC, it is characterised in that include the following steps:
(1) it can be used intermediate for sky using the Cu/Al core material radially slotted according to the cooling requirement of carrying out practically operating condition
The trough of belt Cu/Al core material of the heart or solid construction；
(2) the ReBCO superconducting tape of multilayer commensurateiy wide is inserted into the slot of Cu/Al core material；
(3) according to current-carrying performance requirement, ReBCO superconducting tape is wound in the outer helical of Cu/Al core material.
During spiral winding ReBCO superconducting tape, more ReBCO superconducting tapes are existed with multilayer form helically coiling
On core, every layer includes at least one ReBCO superconducting tape, and different layers ReBCO superconducting tape is mutually folded along core circumferencial direction
Add coiling.
In winding structure, there can be the conductor material of one or more non-superconductings to be wound on two layers of ReBCO superconducting tape
Between, adjacent two layers ReBCO superconducting tape winding direction can be identical or opposite.
When coiling ReBCO superconducting tape, prestressing force is applied to band；When more ReBCO superconducting tape coilings of same layer, band
Between have gap.
At least one electric insulation layer or thermal resistance conducting wire are wound on core, quench heat source to provide.
The superconducting layer of the ReBCO superconducting tape of coiling is inside, the effect of superconducting layer compression chord；Adjacent layer ReBCO superconductive tape
Material carries out coiling with same or different coiling pitch, and the coiling pitch angular range of more ReBCO superconducting tapes is 20 ° and arrives
70°。
The cross-sectional shape of core is rectangle round, that ellipse either has bull nose, and the radius of bull nose is less than 3
mm。
Scolding tin can be used between the ReBCO superconducting tape of adjacent layer, and heating and melting processing is carried out after coiling,
When improving high current current-carrying the current distribution of difference superconducting tape with degree；Profit can be used between the superconducting tape of adjacent layer
Lubrication prescription, to improve the mechanical bendable after coiling large scale cable/around property.
The invention has the advantages that
The present invention is in order to meet the bending and loads and the current-carrying performance such as the electromagnetism in operational process during the manufacture of Large Magnetic body
ReBCO band is formed round wires structure by demand together with copper strips/copper wire, is solved ReBCO band and is carried out large size CICC conductor system
The process difficulties made.In addition, design round wires made of ReBCO band and cable are with high current carrying density and flexibly
Flexural property, later period can be by multistage stranded cables, to become available large-scale magnet CICC hyperconductive cable.
Detailed description of the invention
Fig. 1 a is the high-temperature superconductor ReBCO line applied to CICC that square structure uses ReBCO superconducting tape to be formed by stacking
The both ends schematic cross-section of cable structure；
Fig. 1 b is that square structure uses ReBCO superconducting tape to be applied to CICC with what Cu/Al band or Cu/Al line were formed by stacking
The both ends schematic cross-section of high-temperature superconductor ReBCO cable structure；
Fig. 1 c is the two end sections signal using the high-temperature superconductor ReBCO cable structure applied to CICC of trough of belt Cu/Al core material
Figure；
Fig. 2 a is the schematic diagram using the sub- cable of small size ReBCO round wires (overall diameter is less than 6mm) multistage kink at multistage cable；
Fig. 2 b is the schematic diagram using the sub- cable of large scale ReBCO 6 (overall diameter is greater than 10mm)+1 fixed core kink at multistage cable；
Fig. 3 is the schematic diagram of spiral winding ReBCO superconducting tape assembling round wires.
Specific embodiment
As shown in Figure 1a, a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC, including walk as follows
It is rapid:
(1) width is used to be superimposed as square structure for 1-6mm, with a thickness of the ReBCO superconducting tape 1.1 of 0.05-0.1mm；
(2) it fills in the four edges of square structure Cu/Al arc filling tape 1.2 with made of, so that its periphery becomes circle
Structure, wherein the material of arc filling tape and size can be selected according to final cable bulk and requirement of mechanical strength；
(3) the outer helical winding single layer or multi-layer C u/Al band 3 of the circular configuration constituted in filling arc filling tape 1.2
Core is formed, the outer diameter of core is between 1-20mm；
(4) according to current-carrying performance requirement, ReBCO superconducting tape 1.4 is wound in the outer helical of Cu/Al band 1.3.
As shown in Figure 1 b, a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC, including walk as follows
It is rapid:
(1) use width for 1-6mm, the ReBCO superconducting tape 2.1 with a thickness of 0.05-0.1mm and Cu/Al band or Cu/Al line
2.5 are superimposed as square structure, can be according to the ReBCO of specific current-carrying and operation stress condition selection single layer or multiple-layer stacked
Single-layer or multi-layer Cu/Al band is carried out among superconducting tape or Cu/Al line 2.5 is filled；
(2) it fills in the four edges of square structure Cu/Al arc filling tape 2.2 with made of, so that its periphery becomes circle
Structure, wherein the material of arc filling tape and size can be selected according to final cable bulk and requirement of mechanical strength；
(3) the outer helical winding single layer or multi-layer C u/Al band of the circular configuration constituted in filling arc filling tape 2.2
2.3 form core, and the outer diameter of core is between 1-20mm；
(4) according to current-carrying performance requirement, ReBCO superconducting tape 2.4 is wound in the outer helical of Cu/Al band 2.3.
As illustrated in figure 1 c, a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC, including walk as follows
It is rapid:
(1) using the Cu/Al core material 3.1 radially slotted, according to the cooling requirement of carrying out practically operating condition, can use centre for
Hollow or solid construction trough of belt Cu/Al core material 3.1；Cooling duct 3.2 is set in intermediate hollow structure；
(2) the ReBCO superconducting tape 3.3 of multilayer commensurateiy wide is inserted into the slot of Cu/Al core material 3.1；
(3) according to current-carrying performance requirement, ReBCO superconducting tape 3.3 is wound in the outer helical of Cu/Al core material 3.1.
As shown in figure 3, more ReBCO superconducting tapes are during spiral winding ReBCO superconducting tape with multilayer form
Helically coiling is on core, and every layer includes at least one ReBCO superconducting tape, and different layers ReBCO superconducting tape is along core circumference
Direction is overlapped mutually coiling；In winding structure, the conductor material of at least one non-superconducting is wound on two layers of ReBCO superconducting tape
Between, adjacent two layers ReBCO superconducting tape winding direction is opposite；When coiling ReBCO superconducting tape, prestressing force is applied to band；
When more ReBCO superconducting tape coilings of same layer, there is gap between band；At least one electric insulation layer or thermal resistance conducting wire
It is wound on core, quenches heat source to provide；The superconducting layer of the ReBCO superconducting tape of coiling is inside, the compressed masterpiece of superconducting layer
With；Adjacent layer ReBCO superconducting tape carries out coiling with same or different coiling pitch, more ReBCO superconducting tapes around
Pitch angular range processed is 20 ° to 70 °；The cross-sectional shape of core is the rectangle that ellipse either has bull nose, bull nose
Radius less than 3 mm；Scolding tin can be used between the ReBCO superconducting tape of adjacent layer, and is carried out heating after coiling and melted
Change processing, when improving high current current-carrying the current distribution of difference superconducting tape with degree；Between the superconducting tape of adjacent layer
It can with lubricator, to improve the mechanical bendable after coiling large scale cable/around property.
It is suitable for the more of CICC structure shown in Fig. 2 for what is be made of the high-temperature superconductor ReBCO cable of any structure in Fig. 1
Grade cable structure, specific embodiment are as follows:
The specific current-carrying performance requirement of CICC conductor according to demand selects the ReBCO cable structure in Fig. 1 as ReBCO round wires:
(1) the multistage cable structure making step in Fig. 2 a are as follows:
It is mainly made of from inside to outside central cooling tube 1, sub- cable (overall diameter is less than 6mm) and outermost stainless steel band 3:
The quantity of assembling ReBCO round wires 2 first according to demand, which is determined, carries out process using one or more levels cable using sub- cable, in sub- cable
Single or more Cu core material 4 can be added, then according to magnet according to carrying out practically load and streaming request during process
Cooling and pressure drop demand for control determines central cooling tube size；Finally carried out in outermost using stainless steels bands such as 316L(N)
Half-stack package, to ensure the globality of the construction of cable and play a part of to protect cable；
(2) the multistage cable structure in Fig. 2 b:
According to the support of CICC superconductive cable design size demand, operation loading condition and cooling requirement design Intermediate Gray helicla flute
Structure 5 can be grown into and be made by casting, cutting processing or direct chemical method；CICC conductor is specific according to demand
Current-carrying performance requirement calculates the radical and winding layer number of the ReBCO round wires 6 of single sub- cable (overall diameter is greater than 10mm) in Fig. 2 b,
And single cable manufacture is carried out according to the production method of above-mentioned ReBCO superconduction round wires/single-stage cable；It is successively carried out according to helicla flute single
The installation of cable；One or more layers stainless steel band is wound with half lap packet form on the outside.
Claims (10)
1. a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC, it is characterised in that include the following steps:
(1) width is used to be superimposed as square structure for 1-6mm, with a thickness of the ReBCO superconducting tape of 0.05-0.1mm；
(2) it fills in the four edges of square structure Cu/Al arc filling tape with made of, so that its periphery becomes round knot
Structure, wherein the material of arc filling tape and size can be selected according to final cable bulk and requirement of mechanical strength；
(3) the outer helical winding single layer of the circular configuration constituted in filling arc filling tape or multi-layer C u/Al band are formed
Core, the outer diameter of core is between 1-20mm；
(4) according to current-carrying performance requirement, ReBCO superconducting tape is wound in the outer helical of Cu/Al band.
2. a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC, it is characterised in that include the following steps:
(1) it uses width for 1-6mm, is folded with a thickness of ReBCO superconducting tape and the Cu/Al band or Cu/Al line of 0.05-0.1mm
Addition square structure, can be according to the ReBCO superconduction of specific current-carrying and operation stress condition selection single layer or multiple-layer stacked
Single-layer or multi-layer Cu/Al band or the filling of Cu/Al line are carried out among band；
(2) it fills in the four edges of square structure Cu/Al arc filling tape with made of, so that its periphery becomes round knot
Structure, wherein the material of arc filling tape and size can be selected according to final cable bulk and requirement of mechanical strength；
(3) the outer helical winding single layer of the circular configuration constituted in filling arc filling tape or multi-layer C u/Al band are formed
Core, the outer diameter of core is between 1-20mm；
(4) according to current-carrying performance requirement, ReBCO superconducting tape is wound in the outer helical of Cu/Al band.
3. a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC, it is characterised in that include the following steps:
(1) it can be used intermediate for sky using the Cu/Al core material radially slotted according to the cooling requirement of carrying out practically operating condition
The trough of belt Cu/Al core material of the heart or solid construction；
(2) the ReBCO superconducting tape of multilayer commensurateiy wide is inserted into the slot of Cu/Al core material；
(3) according to current-carrying performance requirement, ReBCO superconducting tape is wound in the outer helical of Cu/Al core material.
4. a kind of according to claim 1, high-temperature superconductor ReBCO cable ties structure applied to CICC described in any one of 2,3
Make method, it is characterised in that: during spiral winding ReBCO superconducting tape, more ReBCO superconducting tapes are with multilayer form
Helically coiling is on core, and every layer includes at least one ReBCO superconducting tape, and different layers ReBCO superconducting tape is along core circumference
Direction is overlapped mutually coiling.
5. a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC according to claim 4, feature
Be: in winding structure, can have the conductor material of one or more non-superconductings be wound on two layers of ReBCO superconducting tape it
Between, adjacent two layers ReBCO superconducting tape winding direction can be identical or opposite.
6. a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC according to claim 4, feature
It is: when coiling ReBCO superconducting tape, prestressing force is applied to band；When more ReBCO superconducting tape coilings of same layer, band it
Between have gap.
7. a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC according to claim 4, feature
Be: at least one electric insulation layer or thermal resistance conducting wire are wound on core, quench heat source to provide.
8. a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC according to claim 4, feature
Be: the superconducting layer of the ReBCO superconducting tape of coiling is inside, the effect of superconducting layer compression chord；Adjacent layer ReBCO superconducting tape with
Same or different coiling pitch carries out coiling, and the coiling pitch angular range of more ReBCO superconducting tapes is 20 ° to 70 °.
9. a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC according to claim 4, feature
Be: the cross-sectional shape of core is rectangle round, that ellipse either has bull nose, and the radius of bull nose is less than 3 mm.
10. a kind of high-temperature superconductor ReBCO cable structure production method applied to CICC according to claim 4, special
Sign is: scolding tin can be used between the ReBCO superconducting tape of adjacent layer, and heating and melting processing is carried out after coiling,
The homogeneous current distribution degree of difference superconducting tape when improving high current current-carrying；Profit can be used between the superconducting tape of adjacent layer
Lubrication prescription, to improve the mechanical bendable after coiling large scale cable/around property.
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| CN111261334A (en) * | 2020-01-16 | 2020-06-09 | 扬州兰都塑料科技有限公司 | Superconducting cable and preparation method thereof |
| CN111986868A (en) * | 2020-08-17 | 2020-11-24 | 中国科学院合肥物质科学研究院 | Wound magnet based on high-temperature superconducting cable and winding method |
| CN112395735A (en) * | 2020-09-23 | 2021-02-23 | 核工业西南物理研究院 | Simulation method for current-carrying efficiency of REBCO conductor |
| CN113035446A (en) * | 2021-03-04 | 2021-06-25 | 上海超导科技股份有限公司 | Superconducting tape structure with quench protection and quench protection method |
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| CN112395735B (en) * | 2020-09-23 | 2023-01-24 | 核工业西南物理研究院 | Simulation method for current-carrying efficiency of REBCO conductor |
| CN113035446A (en) * | 2021-03-04 | 2021-06-25 | 上海超导科技股份有限公司 | Superconducting tape structure with quench protection and quench protection method |
| CN113470887A (en) * | 2021-08-03 | 2021-10-01 | 广东电网有限责任公司 | Superconducting cable structure |
| CN113539570A (en) * | 2021-08-23 | 2021-10-22 | 北京智诺嘉能源科技有限公司 | High-temperature superconducting cable based on multi-groove structure |
| CN113539570B (en) * | 2021-08-23 | 2023-03-03 | 北京智诺嘉能源科技有限公司 | High-temperature superconducting cable based on multi-groove structure |
| CN113724941A (en) * | 2021-08-30 | 2021-11-30 | 中国科学院合肥物质科学研究院 | Preparation method of high-temperature superconducting wire for improving mechanical strength |
| CN113724941B (en) * | 2021-08-30 | 2023-08-15 | 中国科学院合肥物质科学研究院 | Preparation method of high-temperature superconducting wire for improving mechanical strength |
| CN116110676A (en) * | 2023-03-08 | 2023-05-12 | 中国科学院合肥物质科学研究院 | Magnet structure based on high-temperature superconductive CORC cable |
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