479results about "Superconductors/hyperconductors" patented technology

The invention belongs to the technical field of superconducting wires, and relates to a niobium-tin composite superconducting wire and a preparation method thereof. The invention provides a Nb3Sn composite superconducting wire. The Nb3Sn composite superconducting wire sequentially comprises an Nb3Sn superconducting wire core, a barrier layer, a stable layer, a transition layer, a substrate layer and a functional layer from inside to outside, the transition layer is formed by mixing copper and a dielectric polymer, and the copper content is continuously decreased in a gradient manner from inside to outside; the substrate layer is the dielectric polymer; the functional layer is a plurality of protruding metal microstructures. According to the invention, the functional layer with the broadband electromagnetic stealth function is integrated on the basis of the Nb3Sn superconducting wire rod, so that the radar cross section is obviously reduced while the Nb3Sn superconducting wire rod bears high-density superconducting current and generates a strong magnetic field, and the technical problem that a high-field superconducting magnet system is easy to detect in an electromagnetic environment is solved.

The invention belongs to the technical field of cable processing, and relates to a preparation method and application of a flexible superconducting coaxial cable outer conductor. The preparation method comprises the following steps: mixing Nb powder and Ti powder by adopting a vibrating ball mill to prepare NbTi composite powder; a substrate of laser powder bed melting equipment is preheated, the NbTi composite powder is spread on the substrate of the laser powder bed melting equipment, a melting powder layer is scanned through the laser powder bed melting technology, a three-dimensional communicated grid structure is formed through interlayer staggered scanning, finally, the NbTi net-shaped alloy pipe is placed in a strong acid solution to be soaked for a short time, redundant metal powder is removed, and the NbTi net-shaped alloy pipe is obtained. And finally, the preparation of the flexible superconducting coaxial cable outer conductor for the quantum computer is realized.

The invention belongs to the technical field of superconducting material processing, and discloses a multi-barrier-layer MgB2 superconducting wire and a preparation method thereof. A plurality of groups of interlayers of the wire are composed of Cu / Ni / Nb, outer-layer copper serves as a stabilizer, Ni serves as a low-cost outer barrier layer, Ni and the outer-layer copper are mutually diffused in the hot extrusion process to form a stable Cu-Ni compound, and Nb foil is added into the Ni layer to serve as an inner barrier layer so as to restrain the diffusion problem of a small amount of Ni-Mg. According to the multi-barrier-layer MgB2 superconducting wire, Nb is greatly replaced by Cu / Ni, the raw material cost is remarkably reduced, the barrier layers are mutually diffused in the hot extrusion process to achieve metallurgical bonding, uniform deformation of the wire in the subsequent machining process is facilitated, the possibility of damage of the barrier layers is reduced, the current-carrying performance of the wire is improved, the Jc of the multi-barrier-layer MgB2 superconducting wire under 4.2 K and 3T is 5199-6271 A / mm < 2 >, and the service life of the multi-barrier-layer MgB2 superconducting wire is prolonged. And the current-carrying performance is obviously improved, and the application prospect is wide.

A multi-objective optimization method for structural parameters of a superconducting cable, comprising steps of: S1, obtaining structural parameters and performance parameters of the superconducting cable, setting a constraint range of the structural parameters of the superconducting cable, based on the structural parameters and performance parameters of the superconducting cable, constructing an objective function, to establish a multi-objective optimization model of the structural parameters of the superconducting cable; and S2, through an improved multi-objective grey wolf optimization algorithm, iteratively solving the multi-objective optimization model of the structural parameters of the superconducting cable, to obtain an optimal solution for each of the structural parameters of the superconducting cable; where, to an iteration coefficient in a multi-objective grey wolf optimization algorithm, a weight coefficient negatively correlated with an overall sensitivity index of each of the structural parameters of the superconducting cable is given, to obtain the improved multi-objective grey wolf optimization algorithm.

The invention relates to a storage cryostat (2) for liquid helium (7), suitable for transferring liquid helium (7) from the storage cryostat (2) into an application cryostat (3), wherein the storage cryostat (2) comprises: - a vacuum-insulated helium vessel (6) for liquid helium (7), the helium vessel (6) having a vertical height HHB that can be filled with liquid helium (7), - a transfer line (4) for liquid helium (7), having an inlet opening (20) which opens into a lower region of the helium vessel (6), in particular into a lower fifth of the helium vessel (6), and - a convection-suppression system (9) which is arranged within the helium vessel (6) and impedes vertical convection of liquid helium (7) in the helium vessel (6), characterised in that the convection-suppression system (9) is formed in the helium vessel (6) over a height interval (IKS) with a vertical height HKS, where HKS ≥ 0.50 × HHB, and in that the convection-suppression system (9) impedes the vertical convection of liquid helium (7) in the helium vessel (6) over the region of the height interval (IKS) of the convection-suppression system (9). The invention provides a storage cryostat that enables simple and rapid transfer of liquid helium from the storage cryostat into the application cryostat, with minimised helium losses.

An example method described herein includes operating a first component of a circuit. The method also includes, while operating the first component, supplying a current to a superconducting wire that is thermally-coupled to the first component, and determining whether the superconducting wire has transitioned between a superconducting state to a non-superconducting state in response to the current. The method further includes measuring a temperature of the first component based on whether the superconducting wire transitioned between the superconducting state to the non-superconducting state in response to the current, and adjusting operation of the first component in accordance with a determination that the temperature exceeds a predetermined threshold temperature.

A method for manufacturing a semiconductor structure and a semiconductor structure are provided. The manufacturing method includes the following operations. A substrate is provided, and a first groove and a second groove are formed in the substrate, each of the first groove and the second groove having a depth in a first direction. The first groove includes multiple first sub-grooves arranged in the first direction, the second groove includes multiple second sub-grooves arranged in the first direction, and sidewalls of the first sub-grooves and sidewalls of the second sub-grooves are convex outwards. Word lines protruding away from the first groove each are formed at an interface of adjacent first sub-grooves. First source-drain layers formed on the sidewalls of the first sub-grooves, and second source-drain layers protruding away from the second groove each are formed at an interface of adjacent second sub-grooves.

The present invention provides: a MgB2 superconducting wire that has a barrier layer of highly uniform thickness covering a MgB2 core and that reduces MgB2 filament defects and is suitable for thinning and lengthening; a MgB2 superconducting wire manufacturing method for manufacturing the same; a superconducting coil using the same; and a magnetic generator including the superconducting coil. A MgB2 superconducting wire (200) comprises: a core material (210); a MgB2 filament (220) in which a MgB2 core (221) is covered with a barrier layer (222); and a metal sheath (230). The MgB2 filament (220) has a barrier layer (222) thickness on the outer peripheral side of the wire not more than three times the barrier layer (222) thickness on the core side of the wire. The method for manufacturing the MgB2 superconducting wire includes a step for forming a single core wire, a step for forming an embedded material, a surface reduction processing step, and a heat treatment step. The embedded material is formed by arranging the single core wire in a recess formed in the outer surface of the core material or by incorporating a spacer in a gap.

The invention belongs to the technical field of superconducting materials, and discloses an internal tin method Nb3Sn superconducting wire integrated with a piezoelectric sensing function and a preparation method of the internal tin method Nb3Sn superconducting wire. According to the method, a piezoelectric functional layer and a dielectric layer are prepared on the surface of a SnAl alloy rod, a CuAg alloy rod is installed after drilling to form a composite rod, the composite rod is inserted into an inner tin method Nb3Sn / CuNb composite pipe to be drawn into a subcomponent, then the subcomponent is bundled and installed into a Ta pipe and an oxygen-free copper pipe, and the wire is prepared through multiple times of stretching. The piezoelectric functional layer can convert micro strain into measurable electric signals, in-situ real-time monitoring of mechanical stress and the like in the wire rod is achieved, the CuAg alloy bar can stabilize the tensile strength of the wire rod and promote generation of an Nb3Sn phase, and on the premise that the superconducting performance is not affected, the operation reliability and safety of the high-field magnet under the extreme working condition are improved.

The invention belongs to the technical field of superconducting coaxial cable processing, and particularly relates to a superconducting coaxial cable and a preparation method and application thereof. The superconducting coaxial cable is composed of an outer conductor, a PTFE insulation module and an inner conductor arranged in the PTFE insulation module, the PTFE insulation module is a cylinder with a through hole in the center, supporting structures are symmetrically arranged at the two axial ends of the cylinder, a non-supporting structure is arranged in the middle of the cylinder, and the specific structure of the PTFE insulation module effectively regulates and controls the effective dielectric constant of an insulator. Therefore, the characteristic impedance of the superconducting coaxial cable is flexibly and finely adjusted, and the application requirement of a quantum computer signal transmission device on the characteristic impedance is met. The PTFE insulating module is prepared by pressing and sintering, and NbTi filaments are embedded into the prepared PTFE module by a heating method and are assembled with an outer conductor to form the superconductive coaxial cable. The method is simple in process, convenient to assemble and suitable for large-scale production.

The invention discloses a ductile niobium-titanium alloy material, a preparation method and application of the ductile niobium-titanium alloy material to preparation of a central conductor. The ductile niobium-titanium alloy material comprises, by weight, 44.5%-47.5% of Nb, 47.0%-50.0% of Ti, 1.0%-2.0% of Zr, 0.8%-2.0% of Mo, 0.2%-0.6% of V, 0.1%-0.3% of Al, 0.05%-0.12% of Si, 0.015%-0.025% of C, smaller than or equal to 0.035% of O, smaller than or equal to 0.01% of N, smaller than or equal to 0.25% of Fe + impurities and the balance Ti. The preparation process comprises the steps of double-vacuum melting, double-stage pre-homogenization heat treatment, gradient temperature control thermal machining and double-stage aging heat treatment, a fine grain beta matrix + dispersed alpha phase + nano MC carbide synergistic strengthening structure is obtained, and 3-10% of metastable beta phase is reserved. The central conductor made of the material has longitudinal and transverse absorption energy of not less than 180 J / cm and not less than 178 J / cm at-273 DEG C, longitudinal and transverse performance difference of not more than 8%, yield strength of not less than 780 MPa, salt spray corrosion resistance of not less than 1000 hours, and no obvious corrosion, and is suitable for manufacturing the central conductor of the low-temperature superconducting wire.

Systems and methods disclosed herein may comprise a bottom hole assembly; and a cable disposed in the wellbore. In examples, the cable may comprise a superconducting material configured to provide at least power to the bottom hole assembly; one or more liquid supply channels configured to supply a fluid to reduce temperature of the superconducting material; and one or more liquid return channels. Further, cryogenic liquid may be pumped through the liquid supply channels.

The invention belongs to the technical field of superconducting material processing, and discloses a near-infrared optical response Nb3Sn superconducting wire and a preparation method thereof. The Nb3Sn superconducting wire with near-infrared optical response comprises an optical functional coating, the optical functional coating is formed by embedding periodically-arranged plasmon metal micro-nano structures into a high-transparency dielectric substrate, the plasmon metal micro-nano structures are gold nanorod arrays or silver nanoring, the dielectric substrate is made of a SiO2-polyimide composite material, and the thickness of the dielectric substrate is 10-20 micrometers. The Nb3Sn superconducting wire with the near-infrared optical response has high absorptivity and photoelectric response in the near-infrared band, in-situ optical sensing of temperature, stress and magnetic field intensity can be synchronously achieved, the interface compatibility of the optical functional coating and the Nb3Sn superconducting basic wire is good, meanwhile, the influence of the added optical functional coating on the performance of the superconducting wire is small, and the service life of the superconducting wire is prolonged. And the method has a wide application prospect in the aspect of constructing an integrated optical-electric-magnetic multifunctional device.

The present invention relates to a high-temperature superconducting magnet and, more specifically, to: a high-temperature superconducting magnet achieving uniform critical current density using dissimilar metal wire materials; and a design parameter determination method thereof. To this end, in a high-temperature superconducting (HTS) magnet (100) formed by stacking an HTS coil (50) having a tape-type HTS conductor wire material wound thereon, the HTS coil (50) comprises: a first metal wire material (110) wound on the HTS coil (50); and a second metal wire material (130) that is made of a different metal from the first metal wire material (110) and wound while at least partially overlapping the first metal wire material (110) in the longitudinal direction of the first metal wire material (110), thereby forming a composite winding portion (140). Accordingly, the HTS magnet achieving uniform critical current density using dissimilar metal wire materials is provided, wherein the uniformity of the critical current density increases on the longitudinal cross-section of the HTS magnet (100).

The invention relates to a facility for cooling a flow of cryogenic fluid comprising a first circuit for fluid to be cooled, for example liquid nitrogen and / or liquid oxygen, a cryogenic refrigerator with a cycle circuit, at least one heat exchanger providing heat exchange with the first circuit for fluid to be cooled and the cycle circuit of the refrigerator, the facility comprising a second circuit for fluid to be liquefied, for example nitrogen gas and / or oxygen gas, the second fluid circuit being in heat exchange with the cycle circuit of the refrigerator in at least one heat exchanger of the facility, the facility being configured so as to be switchable into a first cooling operating mode, in which the facility cools the first fluid circuit in order to cool a liquefied fluid, preferably in order to generate a quasi-isothermal transformation of said fluid, and a second liquefaction operating mode, in which the facility cools the second fluid circuit with a view to liquefying a gas flow.

This invention belongs to the field of superconducting material processing technology and discloses a multi-barrier layer MgB2 superconducting wire and its preparation method. The wire consists of multiple barrier layers composed of Cu / Ni / Nb, with an outer copper layer as a stabilizer and Ni as a low-cost outer barrier layer. Ni and the outer copper layer diffuse into each other during hot extrusion to form a stable Cu-Ni compound. Nb foil is added within the Ni layer as an inner barrier layer to suppress the diffusion of small amounts of Ni-Mg. The multi-barrier layer of this invention significantly replaces Nb with Cu / Ni, substantially reducing raw material costs. The interdiffusion of the barrier layers during hot extrusion achieves metallurgical bonding, which is beneficial for uniform wire deformation during subsequent processing, reduces the possibility of barrier layer damage, and improves the wire's current-carrying capacity. The multi-barrier layer MgB2 superconducting wire of this invention exhibits a Jc of 5199~6271 A / mm² at 4.2K and 3T. 2 Its current-carrying capacity is significantly improved, and it has broad application prospects.

The application discloses a method for improving critical current of REBCO superconducting layer and relates to the technical field of superconducting materials.The method for improving critical current of REBCO superconducting layer comprises the following steps: REBCO superconducting tapes are annealed in a pure oxygen atmosphere, quenched to 20-25 DEG C, and then the surface silver layer is removed by a chemical method, after which the REBCO superconducting tapes are annealed in a mixed atmosphere of ozone and oxygen, and a protective layer is deposited, so that the critical current of the REBCO superconducting layer is finally improved.The carrier concentration of the REBCO superconducting tapes can be effectively controlled through the specific multi-step oxidation process, so that the REBCO superconducting tapes break through the under-doped state commonly existing in the prior art, reach the over-doped level, and then the critical current performance of the tapes is significantly improved.The method has simple process, high stability and high industrial feasibility, and can meet the demand of higher current-carrying capacity of REBCO tapes in key fields such as power transmission and high-field magnets.

The utility model discloses an electricity-hydrogen-carbon collaborative conveying, control and utilization system, and belongs to the technical field of energy conveying. The system comprises a control system and a conveying pipeline, wherein the conveying pipeline comprises a first pipe body, a second pipe body and a third pipe body which are sequentially arranged from inside to outside; the first pipe body forms a first channel for conveying liquid hydrogen, a second channel is formed between the first pipe body and the second pipe body, the second channel is filled with liquid nitrogen, and a third channel for conveying liquid carbon dioxide is formed between the second pipe body and the third pipe body; a power cable is further arranged in the second channel and used for transmitting electric power. Cold energy in the conveying pipeline is distributed in a uniform gradient mode, multi-stage gradient utilization of the cold energy can be achieved, and the comprehensive energy utilization rate of the liquid hydrogen, liquid carbon dioxide and electric power collaborative conveying system is increased.

A stellarator comprising a non-planar magnetic field coil with a cable as well as a method for providing a cable for a non-planar magnetic field coil in a stellarator is presented. Additionally, a cable and a method for manufacturing a cable are presented. The cable comprises an inner section (100) comprising multiple layers of superconductor material (200), the multiple layers of superconductor material (200) having a first orientation (210, 210a, 210b, 210c), an outer section (300) surrounding the inner section (100), the outer section (300) having a cross-section (310) with a second orientation (320, 320a, 320b, 320c), wherein the outer section (300) comprises a first conductive material (410) which fixes the first orientation (210, 210a, 210b, 210c), wherein the first orientation (210, 210a, 210b, 210c) changes along a length (50) of the cable (40) with respect to the second orientation (320, 320a, 320b, 320c).

A method for fabricating a high-temperature superconductor HTS field coil using one or more HTS strips. Each HTS strip includes a layer of HTS material. The method includes: winding the one or more HTS strips around an axis to form a field coil comprising a winding of HTS strips; and removing material from at least a portion of the one or more windings from the axial edges of the one or more HTS strips to reduce the extent of the one or more HTS strips along the axis of the field coil.

The application provides a cabling device of a superconducting cable, and belongs to the technical field of cable manufacturing. The cabling device comprises a pay-off system, a stranding system and a take-up system arranged in sequence along a first direction. The pay-off system is used for releasing strands, and the take-up system is used for taking up the stranded body. The stranding system comprises a base, a stranding disc and a driving member. The base is fixedly connected to the ground. The stranding disc is rotationally connected to the base. The stranding disc comprises an inner disc, an outer disc arranged at the outer periphery of the inner disc, a support roller fixedly connected between the inner disc and the outer disc, and a plurality of threading rings which are detachably connected to the support roller. A threading hole is formed through the center of the inner disc. The driving member is transmissionally connected to the stranding disc and is used for driving the stranding disc to rotate with the horizontal direction as the rotation axis. The application improves the applicability of the stranding disc.

This invention relates to a high-temperature superconducting cable, comprising: a metal skeleton, high-temperature superconducting tape, impregnated filler, a conductive metal layer, and a metal armor layer; a central cooling channel is provided in the center of the metal skeleton; the high-temperature superconducting tape is stacked into strands, with the entire strand spirally wound tightly against the metal skeleton; a conductive metal layer is wound around the outer side of the high-temperature superconducting tape, and a metal armor layer is also provided; the impregnated filler is filled into the gaps between each strand of the high-temperature superconducting tape using a vacuum pressure impregnation process. Compared with the prior art, in this invention, the high-temperature superconducting tape is stacked into strands and wound on the metal skeleton, and the neatly stacked tape is less susceptible to mechanical damage; there are gaps between the strands of the high-temperature superconducting tape, and the size of the gaps can be changed when the cable is bent, so the high-temperature superconducting tape is less likely to be damaged by excessive stress when the cable is bent; after the cable is bent, the gaps between the strands of the high-temperature superconducting tape can be filled by vacuum pressure impregnation, improving the thermal conductivity and mechanical strength of the cable.

The invention discloses a novel superconducting cable based on superconducting tape transposition braiding and a braiding device thereof, the novel superconducting cable is made of a plurality of superconducting tapes, the superconducting tapes are equally divided into two groups according to the winding direction of the tapes on a framework, the two groups are respectively a clockwise group and an anticlockwise group, and the novel superconducting cable is made by adopting a transposition braiding mode under the assistance of the braiding device. The novel superconducting cable complete transposition structure has the characteristics of uniform current carrying, low alternating current loss and high current carrying capacity, and the alternating current loss in a vertical magnetic field is also obviously reduced. Different from a Robel transposition cable, the superconducting tape does not need to be cut in advance, damage and waste of the tape are avoided, the transposition problem of the superconducting cable tape is effectively solved, the utilization rate of the superconducting tape is further improved, and a simpler, more efficient and more economical solution is provided for manufacturing the superconducting cable with complete transposition. In view of the complex knitting method, a corresponding knitter is designed to assist knitting.

A memory, a manufacturing method thereof, and an electronic device are provided. The memory includes a first semiconductor structure and a second semiconductor structure coupled to the first semiconductor structure. The first semiconductor structure includes a plurality of memory arrays arranged in an array and spaced apart from each other, each memory array includes a plurality of memory cells arranged in an array, each memory cell includes a vertical transistor extending in a first direction and a capacitor coupled to the vertical transistor, the capacitor includes a first electrode and a second electrode opposite to each other, and the first electrode is coupled to the vertical transistor; the second semiconductor structure includes a peripheral circuit and is disposed on a side of the vertical transistor away from the capacitor in the first direction; the first semiconductor structure further includes a common electrode electrically connected to the second electrodes of the capacitors in the plurality of memory arrays and a common electrode contact plug disposed on a same side of the common electrode as the vertical transistors in the first direction, and the common electrode is coupled to the peripheral circuit through the common electrode contact plug.

This invention discloses a high-power superconducting charging pile, mainly addressing the problems of poor heat dissipation, low energy efficiency, and slow charging speed of existing charging piles. It includes: a charging pile assembly (1), an air-cooled heat dissipation assembly (2), and a current-carrying cable assembly (3). The charging pile assembly connects the power grid to the charging pile and includes an electrical circuit (11) and a power supply module (12). The air-cooled heat dissipation assembly cools the components inside the charging pile. The current-carrying cable assembly connects the charging pile assembly to an external load, enabling lossless DC charging. The power supply module and the current-carrying cable assembly form a complete superconducting charging circuit. The two ends of the air-cooled heat dissipation assembly are connected to the power supply module and a gas delivery pipeline, respectively, forming a complete air-cooled heat dissipation circuit. This invention completely eliminates the additional energy consumption caused by the heat exchange drive assembly and does not require an active heat exchanger, greatly improving energy efficiency and safety, and can be used for high-power fast charging of electric vehicles.

The present disclosure is directed to a quantum processor system. The system includes a first cryogenic chamber, a signal reflecting element disposed within the first cryogenic chamber, a second cryogenic chamber, and a quantum device disposed in the second chamber. The signal reflecting element is configured to split an input signal into a first signal component and a second signal component. The system further includes a first signal line and a second signal line. The first signal line is configured to supply the input signal from an external environment to the signal reflecting element and to supply the reflected first signal component from the signal reflecting element to the external environment. The second signal line is configured to supply the transmitted second signal component from the signal reflecting element to the quantum device. The signal reflecting element electrically couples the first signal line to the second signal line.

The utility model relates to the technical field of power electronics, and discloses a superconducting energy storage device which comprises a shell, the front side and the rear side of the shell are each provided with four first damping rods, and connecting plates are fixedly connected among the four adjacent first damping rods. And the left side and the right side of the shell are each fixedly connected with two second damping rods, a side plate is fixedly connected between every two adjacent second damping rods, the left side and the right side of the shell are each provided with four rotating rods, and the opposite ends of every two front-back adjacent rotating rods are rotationally connected with the adjacent connecting plates. According to the shock absorber, when the connecting plate is collided, the first constant force spring and the first damping rod on the inner side can buffer the collision, meanwhile, the rotating rods on the two sides extrude the side plates on the two sides, the side plates on the two sides are pulled by the second constant force spring and the second damping rod for buffering, and therefore secondary buffering on the collision is achieved; and the impact is prevented from directly acting on the energy storage device in the shell.

This superconducting wire material manufacturing method comprises: a step for preparing a superconducting wire material for cutting that has a first main surface and a second main surface which is the surface opposite from the first main surface; and a step for conveying the superconducting wire material for cutting, along the length direction of the superconducting wire material for cutting, using a first conveyance mechanism and a second conveyance mechanism that are positioned at a distance from each other. The superconducting wire material for cutting is supported at the first main surface by a pulley that is positioned between the first conveyance mechanism and the second conveyance mechanism. This superconducting wire material manufacturing method further comprises a step for cutting the superconducting wire material for cutting, by using a laser to irradiate the second main surface in a section of the superconducting wire material for cutting, said section being supported by the pulley when the superconducting wire material for cutting is being conveyed.

The invention discloses a method for preparing an internal tin method Nb3Sn superconducting material by using a sol-gel method, which comprises the following steps: preparing Nb / Sn gel by using the sol-gel method, and drying and pre-sintering the Nb / Sn gel to obtain Nb / Sn / O mixed powder; uniformly mixing the Nb / Sn / O mixed powder with Sn powder and Y powder to obtain Nb / Sn / O / Sn / Y mixed powder; loading the Nb / Sn / O / Sn / Y mixed powder into a barrier tube, and then loading the barrier tube into an oxygen-free copper tube to obtain a component; the components are densely arranged and loaded into an oxygen-free copper sheath, gaps are filled with oxygen-free copper rods in an inserted mode, and an Nb / Sn / O / Cu / Y composite ingot is obtained; and adding copper covers at the two ends of the Nb / Sn / O / Cu / Y composite ingot, and performing vacuum electron beam seal welding, extrusion and multi-pass drawing to obtain the Nb3Sn superconducting material. According to the prepared Nb3Sn superconducting material, the grain size of the Nb3Sn superconducting phase is smaller, and the structure is more stable.

A superconducting wire material (100) includes a base material (10), an intermediate layer (20), a superconducting layer (30), and a plurality of first precipitates (40) and / or a plurality of second precipitates (42). The base material (10) includes a first main surface (10a). The intermediate layer (20) includes a second main surface (20a) and a third main surface (20b) that is a surface opposite the second main surface (20a); and the second main surface (20a) is disposed on the base material (10) so as to face the first main surface (10a). The superconducting layer (30) is disposed on the third main surface (20b). The constituent material of the superconducting layer (30) is REBa2Cu3Ox (where RE is a rare earth element). The plurality of first precipitates (40) and the plurality of second precipitates (42) are dispersed in the superconducting layer (30). The constituent material of each of the plurality of first precipitates (40) and the constituent material of each of the plurality of second precipitates (42) are non-superconductors. In a cross-sectional view orthogonal to the third main surface (20b), an aspect ratio of each of the plurality of first precipitates (40) is greater than 1.