High-temperature superconducting wire and coil

Abstract

The high-temperature superconducting wire comprises a substrate (1) formed in a flat plate shape, a superconducting laminate member (2) having an intermediate layer (22) and a superconducting layer (21) laminated on the substrate (1), a metal-plated stabilizing member (6) placed on top of the superconducting laminate member (2), an insulating member layer (3) which has been subjected to a release treatment for resin and which covers the outer periphery of the laminated structure in which the substrate (1), the superconducting laminate member (2), and the stabilizing member (6) are laminated together, and a tape-like fixing member (4) which is wrapped around the outer periphery of the insulating member layer (3) and fixes the insulating member layer (3) to the superconducting laminate member (2).

Description

[Technical field]

[0001] This application relates to high temperature superconducting wires and superconducting coils. [Background technology]

[0002] In a conventional high-temperature superconducting wire or a superconducting coil made of a high-temperature superconducting wire, one of the entire outer surface and the entire inner surface of an insulating coating layer covering the outer surface of a tape-shaped substrate constituting the wire material of the superconducting wire and a superconducting laminate having an intermediate layer, an oxide superconducting layer, and a metal stabilizing layer laminated on the substrate is covered with a coating layer made of a fluororesin. The insulating coating layer is formed by winding an insulating tape covered with this coating layer around the superconducting laminate. Furthermore, at least one of the insulating tapes is wound so as to cover the entire outer surface of the superconducting laminate. That is, since high-temperature superconducting wires have a wide tape shape and are weak against stress (peeling stress) in the direction perpendicular to the wide direction, by wrapping a tape that has been treated to release resin around the wire, even if the resin gets in and adheres to the superconducting wire, the adhered resin is easily peeled off from the superconducting wire, and the superconducting wire is protected (see, for example, Patent Document 1).

[0003] The basic structure of the high-temperature superconducting wire configured as above will be described in detail below with reference to FIG. 1 (see, for example, Non-Patent Document 1). As shown in FIG. 1, the high temperature superconducting wire has a rectangular flat plate shape as a whole, and has a thickness Lt of 0.17 mm, which is sufficiently small compared to a width Lw of, for example, 4 mm. In Fig. 1, a superconducting laminate 2 is laminated on a base material 1 (hereinafter also referred to as substrate 1), and the outer periphery of this substrate 1 and superconducting laminate 2 is covered with a stabilizing member made of a copper-plated material or the like. This stabilizing member is further covered with two types (two sheets) of insulating tape, which are insulating coating layers, via an insulating member layer 3. Both types (two sheets) of insulating coating layers are made of polyimide insulating tape (these insulating tapes are also referred to as fixing member 4 and outer fixing member 5; the same applies below), and at least one of these is covered with a coating layer made of fluororesin. This is to prevent peeling, because, as mentioned above, the high-temperature superconducting wire has a wide tape shape and is vulnerable to stress (peeling stress) in the y direction (the normal direction of the rectangular flat surface) perpendicular to the x direction in Fig. 1, which is the longitudinal direction of the wire (hereinafter also referred to as the direction parallel to the wire). Also, at least one of the insulating tapes is coated with fluororesin so that even if the resin, which is the adhesive for fixing the insulating tape to the high-temperature superconducting wire, adheres to the superconducting wire, the adhered resin can be easily peeled off from the superconducting wire (because adhesion of the resin leads to deterioration of the superconducting wire).

[0004] Furthermore, conventional high-temperature superconducting coils using oxide high-temperature superconducting wire are made by winding a tape-shaped high-temperature superconducting wire having an oxide superconducting layer formed on the surface of a metal substrate, and the high-temperature superconducting wire is wound to form a pancake coil having a space passing through the axial center. At least a portion of the side portions of the winding that constitute a pair of axial end faces is covered with a resin layer by co-winding the high-temperature superconducting wire and the tape, thereby reducing the peeling stress acting on the superconducting layer and producing a coil that is less susceptible to deterioration (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2013 / 187353 [Patent Document 2] JP 2010-267887 A

[0006] [Non-Patent Document 1] M.Oya et al., “Design and Manufacture of Half-Size 3-T High-Temperature Superconducting Magnet for MRI”, IEEE TRANSACTION ON APPLIED SUPER-CONDUCTIVITY, VOL.28, NO.3, APLIL, 2018 Summary of the Invention [Problem to be solved by the invention]

[0007] Generally, in such high-temperature superconducting wires or high-temperature superconducting coils using high-temperature superconducting wires, a fluorine-coated insulating layer is wound around the wide wire so that even if resin adheres to the superconducting layer when the wire is coiled and fixed, the adhered resin can be easily peeled off from the superconducting layer. In this case, a wrap winding method is used in which the coating tape is partially overlapped while winding to prevent the resin from entering through gaps during winding. In addition, in the above-mentioned Patent Document 2, a coil formed by winding insulating tape around a superconducting wire is fixed with a resin layer having a heat transfer member which also serves as a heat transfer path, thereby maintaining the coil shape.

[0008] However, wrapping the wires increases the distance between the superconducting wires, which reduces the current density of the coil. In addition, wrapping the wires also causes the distance between the wires to become uneven, which can become a new source of peeling stress. In addition, the insulating tape co-wound method requires a heat transfer material in the resin layer, which is not necessarily required in wrapping the wires.

[0009] The present application discloses technology for solving the above-mentioned problems, and aims to provide a superconducting wire and a superconducting coil made of this superconducting wire, which can reduce the distance between superconducting wires, ensure the required coil current density, and keep the distance between the superconducting wires constant, thereby preventing the occurrence of new sources of peeling stress. [Means for solving the problem]

[0010] A substrate formed in a flat plate shape; a superconducting laminate member disposed on the substrate and having a superconducting layer laminated thereon via an intermediate layer; The superconducting laminated member In parallel a metal-plated stabilizing member disposed thereon; an insulating member layer that has been subjected to a release treatment for resin and covers the outer periphery of a laminated structure in which the substrate, the superconducting laminate, and the stabilizing member are laminated together; The insulating member layer is arranged so as to cover the outer periphery of the insulating member layer. With gap winding a tape-like fixing member that is wound around the insulating member layer and fixes the insulating member layer to the superconducting laminate; It is equipped with the following: Effect of the Invention

[0011] According to the high temperature superconducting wire disclosed in the present application, The adhesive resin used when coiling and fixing the wire does not reach the superconducting layer, and the adhesive resin does not come into direct contact with the superconducting layer. In addition, it is possible to substantially reduce the thickness of the fixing member, which is an insulator that covers the outer periphery of the high-temperature superconducting wire. It is possible to provide a superconducting wire that can prevent the generation of new peeling stress sources and a superconducting coil made of this superconducting wire, by reducing the distance between the superconducting wires, ensuring the required coil current density, and keeping the distance between the superconducting wires constant. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view showing an example of the structure of a high-temperature superconducting wire for explaining the problem of the present application. [Diagram 2] FIG. 1 is a perspective view for explaining a structural example of a high-temperature superconducting wire according to a first embodiment. [Diagram 3] FIG. 2 is a top view for explaining a structural example of the high-temperature superconducting wire according to the first embodiment. [Figure 4] FIG. 2 is a diagram for explaining a laminated structure of a superconducting layer of the high-temperature superconducting wire according to the first embodiment. [Diagram 5] 1 is a perspective view showing an example of a high-temperature superconducting wire with gap winding according to a first embodiment. FIG. [Figure 6] FIG. 4 is a perspective view showing another example of the high-temperature superconducting wire with gap winding according to the first embodiment. [Figure 7] 1 is a perspective view for explaining a superconducting coil formed from a high-temperature superconducting wire according to a first embodiment. [Figure 8] FIG. 2 is a top view for explaining an example of a partial structure of the superconducting coil according to the first embodiment. [Figure 9] 9 is a diagram showing a comparative example of a partial structure of the superconducting coil of FIG. 8. [Figure 10] 5 is a top view for explaining another example of a partial structure of the superconducting coil according to the first embodiment. FIG. [Figure 11] 4 is a top view for explaining another example of a partial structure of the superconducting coil according to the first embodiment. FIG. [Figure 12] FIG. 11 is a perspective view for explaining one example of the structure of a high-temperature superconducting wire according to a second embodiment. [Figure 13] FIG. 11 is a top view for explaining one example of the structure of a high-temperature superconducting wire according to a second embodiment. [Figure 14] FIG. 11 is a top view for explaining another example of the structure of the high-temperature superconducting wire according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The high temperature superconducting wire and the superconducting coil according to the first embodiment of the present invention will be described in detail below with reference to the drawings, while comparing with the contents explained above with reference to FIG.

[0014] Embodiment 1 Fig. 2 is a diagram for explaining an example of the configuration of the high temperature superconducting wire 100 according to the first embodiment. The high temperature superconducting wire 100 according to the first embodiment will be described in detail below with reference to Fig. 2. In the high temperature superconducting wire 100 according to the first embodiment, the fixing member 4 covering the outer periphery of the insulating member layer 3, which is a rectangular cylindrical body, is of one type (one sheet) and does not need to be coated with fluororesin. In other words, in this embodiment, only one fixing member is required, and both of the above-mentioned two types of fixing members (fixing member 4 and outer fixing member 5) are not required.

[0015] As shown in FIG. 2, the high-temperature superconducting wire 100 according to the first embodiment is generally flat, and is arranged inside (the space within) the cylindrical portion of a rectangular stabilizing member 6 (formed, for example, by copper plating) by integrating and laminating a flat substrate 1, a superconducting laminate member 2 having a superconducting layer and an intermediate layer laminated on top of the substrate 1, and an insulating member layer 3 which has been subjected to a release treatment against resin by fluorine processing (hereinafter also referred to as a laminated structure). Furthermore, in order to fix the stabilizing member 6 to the superconducting laminate 2, a tape-like fixing member 4 such as an insulating tape (e.g., made of polyimide) is wound around the outer periphery of the insulating member layer 3 with a certain gap (see FIG. 2) in between (hereinafter, this winding method with a gap is simply called gap winding). Here, the gap is formed in the width direction of the insulating tape, and the size of the gap is set to, for example, zero (no gap) or a very small size of about 5% of the insulating tape width.

[0016] Next, Fig. 3 is a top view of the high-temperature superconducting wire 100 according to embodiment 1. That is, Fig. 3 is a view of the high-temperature superconducting wire 100 according to embodiment 1 as viewed from above (as viewed in the direction of arrow A in Fig. 2). In FIG. 3, in the hollow portion of a hollow rectangular insulating member layer 3 (e.g., 20 μm thick), there are arranged, from the bottom up, a substrate 1 (e.g., 75 μm thick) made of, for example, a Ni alloy, a superconducting laminate member 2, and a stabilizing member 6.

[0017] By configuring the high-temperature superconducting wire 100 as described above, it is possible to suppress the stress (peel stress) applied to the insulating tape in the y direction in Figure 2 (the normal direction of the rectangular surface marked with symbol 3 of the high-temperature superconducting wire), which is a direction perpendicular to the x direction, which is the longitudinal direction of the high-temperature superconducting wire, and ultimately to prevent peeling of the insulating member layer 3 from the superconducting laminate member 2. Furthermore, since the insulating material layer 3 has been subjected to a release treatment, even if the adhesive used to fix the insulating tape adheres to the superconducting laminate 2, the release effect can prevent the adhesive from remaining attached to the superconducting laminate (because the adhesive will peel off due to the release effect), thereby preventing performance degradation of the superconducting layer due to adhesive penetration.

[0018] Then, by concentrically stacking and winding the above-mentioned high-temperature superconducting wire 100 and forming it into a doughnut shape (e.g., an outer diameter of several hundred mm) when viewed from above (see the direction of arrow A in Figure 7), it is possible to manufacture, for example, a pancake-shaped superconducting coil 200 with excellent superconducting performance (see Figure 7).

[0019] In this case, the insulating tape covering the outer periphery of the high temperature superconducting wire 100 is wound so that adjacent windings do not overlap each other (this structure will be described in detail later). explain).

[0020] Next, a detailed structure of the superconducting laminations 2 of the high temperature superconducting wire 100 according to the first embodiment will be described with reference to Fig. 4. Here, Fig. 4 is a three-dimensional schematic diagram for explaining the detailed structure of the superconducting laminations 2.

[0021] 4, the superconducting laminate 2 is laminated so as to be sandwiched between the substrate 1 and the stabilizing member 6, and is composed of an intermediate layer 22 laminated on the substrate 1 side and a superconducting layer 21 laminated on the stabilizing member 6 side. As described above, the laminated structure in which the substrate 1, the superconducting laminate 2, and the stabilizing member 6 are laminated is covered with the rectangular tubular insulating member layer 3, and the insulating member layer 3 is further covered on its outer periphery by the rectangular tubular fixing member 4. For example, an oxide superconducting member is used as the superconducting layer 21.

[0022] The following describes the effect of using the above-mentioned high-temperature superconducting wire 100 as a wire material for a superconducting coil. In the high-temperature superconducting wire 100, the insulating member layer 3 is fluorine-treated, and the stabilizing member 6 is arranged parallel to the superconducting laminate 2 without being wound around it, so that the adhesive resin used when coiling and fixing the wire does not reach the superconducting layer 21, and the adhesive resin does not come into direct contact with the superconducting layer 21.

[0023] Therefore, it becomes possible to gap-wind the tape-shaped fixing member 4 (here, for example, an insulating tape) arranged so as to cover the outer periphery of the insulating material layer 3. Therefore, as will be described in detail later, it becomes possible to substantially reduce the thickness of the fixing member, which is an insulator covering the outer periphery of the high-temperature superconducting wire 100, so that the distance between the superconducting wires (superconducting layers) does not become large. As a result, the required current density can be ensured in the superconducting coil using the above-mentioned high-temperature superconducting wire 100.

[0024] On the other hand, in the prior art, as explained in the above problem, it is necessary to wrap the covering tape while overlapping a part of it, which results in a large distance between the superconducting wires (superconducting layers) and a decrease in the current density of the coil in the superconducting coil. In addition, in the case of wrapping, the distance between the superconducting wires (superconducting layers) becomes non-uniform, which may become a new source of peeling stress.

[0025] Next, a specific example of the above-mentioned gap-wound high-temperature superconducting wire will be described in detail with reference to the drawings.

[0026] 5 is a perspective view showing the structure of a high-temperature superconducting wire 101, which is an example of a high-temperature superconducting wire with gap winding according to embodiment 1. Here, the high-temperature superconducting wire 101 will be described below, focusing on the differences from the above-mentioned high-temperature superconducting wire 100.

[0027] The high-temperature superconducting wire 101 has a structure similar to that of the high-temperature superconducting wire 100, but the winding form (wound state) of the tape-shaped fixing member arranged on the outer periphery of the insulating member layer 3 is different. That is, the fixing member 4a of the high-temperature superconducting wire 101 is similar to the fixing member 4 of the high-temperature superconducting wire 100 in that it is a gap winding having a gap (the size of the gap is wg. See FIG. 5), but the difference is that the gap is larger than the width wt of the fixing member 4a, that is, it is wound around the outer periphery of the insulating member layer 3 under the relationship wg≧wt. Note that the size of the gap is the size in the width direction of the fixing member. In this case, the angle θ shown in FIG. 5 is defined as the angle between the line connecting the multiple base sides around which the fixing member is wound and the longitudinal direction of the wound portion of one fixing member, and is, for example, a value between 60 degrees and 90 degrees.

[0028] 6 shows in perspective view the structure of a high-temperature superconducting wire 102, which is another example of the gap-wound high-temperature superconducting wire according to embodiment 1. Like the high-temperature superconducting wire 101, this high-temperature superconducting wire 102 has a structure almost similar to that of the high-temperature superconducting wire 100, but the winding form (wound state) of the tape-shaped fixing member 4b disposed on the outer periphery of the insulating member layer 3 is different. Specifically, the difference from the high temperature superconducting wire 101 is that the (left and right) positional relationship between the winding position of the tape-shaped fixing member 4b and the gap position is reversed from that of the above-mentioned high temperature superconducting wire 101.

[0029] When these high temperature superconducting wires 101 and 102 are combined to form a set, and the set is wound concentrically to assemble into superconducting coil 200a (see, for example, FIG. 7), a top view of one set of high temperature superconducting wires of superconducting coil 200a is shown in FIG. 8.

[0030] In this FIG. 8, the lower portion surrounded by the two-dot chain line corresponds to the high-temperature superconducting wire 101, and the upper portion surrounded by the two-dot chain line corresponds to the high-temperature superconducting wire . Here, Ls1 in the figure indicates the distance between the fixing members of two adjacent high temperature superconducting wires 101, 102 facing each other. In this case, the relationship between the gap wg of the fixing members and the width wt of the fixing members is wt>wg.

[0031] As a comparison to the above superconducting coil 200a, FIG. 9 shows a (similar) top view of a pair of high temperature superconducting wires in the prior art (see FIG. 1), ie, a pair of high temperature superconducting wires 301 and 302.

[0032] In this case, two types of insulating tape are wound around the stabilizing member for both the high-temperature superconducting wire 301 and the high-temperature superconducting wire 302, so the distance between the insulating tapes of the two adjacent high-temperature superconducting wires 301, 302 facing each other is represented by Ls3 shown in the figure. If it is assumed here that the thickness of the fixing member for the high temperature superconducting wires 101, 102 is equal to the thickness of the high temperature superconducting wires 301, 302, it is found that the magnitude of Ls3 is twice the magnitude of the above-mentioned Ls1.

[0033] Therefore, the distance between the superconducting layers of the high-temperature superconducting wires 101 and 102 can be made smaller than the distance between the superconducting layers of the high-temperature superconducting wires 301 and 302 by Ls1, which is the difference between Ls3 and Ls1. As a result, it is found that in a superconducting coil using the above-mentioned high-temperature superconducting wires 101, 102 as a set, the required current density can be obtained more easily than in the case of using the high-temperature superconducting wires 301 and 302.

[0034] Therefore, by further developing the case shown in FIG. 8, for example, when the gap wg of the fixing members and the width wt of the fixing members are equal in both the high temperature superconducting wire 101 and the high temperature superconducting wire 102, these high temperature superconducting wires 101 and 102 are combined to be used as one set, and this set is wound concentrically to assemble into superconducting coil 200b, it can be seen that the top view of the portion of superconducting coil 200b equivalent to one set of high temperature superconducting wires will look like that shown in FIG. 10.

[0035] In this case, the distance between the portions where the fixing members of two adjacent high temperature superconducting wires 101, 102 face each other is Ls2 (see FIG. 10). In this case, since Ls2 is equal to the thickness of the fixing members, the distance between the superconducting layers in superconducting coil 200b can be made even smaller than the distance between the superconducting layers in superconducting coil 200a. As a result, it can be seen that the required current density can be obtained even more easily than in the case shown in FIG.

[0036] In addition, in FIG. 8, a superconducting coil using a combination of two different high-temperature superconducting wires 101, 102 as adjacent high-temperature superconducting wires has been described. However, this is not limited to the above, and even in the case of a superconducting coil 200c (see FIG. 11) using a combination of two of the same type of high-temperature superconducting wires 101, the distance between the parts where the fixing members of the two adjacent high-temperature superconducting wires 101 face each other is Ls1, as in FIG. 8, and therefore the same effect as the superconducting coil 200a in FIG. 8 can be achieved.

[0037] 10, the gap wg of the fixing members is equal to the width wt of the fixing members, but the present invention is not limited to this. The fixing members (e.g., insulating tape) can be wound with a gap equal to or larger than the width wt of the fixing members (in this case, wg>wt) and the winding positions of the fixing members can be adjusted so that the fixing members do not overlap when forming a superconducting coil, thereby reducing the distance between the superconducting layers when the superconducting coil is formed. In other words, the density of the superconducting layers can be increased. That is, such a superconducting coil also has the same effect as the superconducting coil described in FIG. 8.

[0038] In addition, under the condition that the fluorine-treated insulating member layer is fixed, the larger the gap of the insulating tape covering the outer periphery, the better, and preferably 80% or more. An example of a stator that satisfies such a condition is a filament that is sufficiently thin compared with the thickness Ht of the superconducting laminate (see FIG. 3). Specifically, for example, the maximum diameter of the filament is Td, and 10Td≦Ht.

[0039] In order to improve the uniformity of the wire position in the superconducting coil, in areas where it is desired to increase the thickness, it is possible to arrange the fixing members (insulating tape) of adjacent wires so that they overlap, and it is also possible to fine-tune the distance between the superconducting laminate members (when superconducting coil 200c is used. See Figure 11).

[0040] Embodiment 2 The high temperature superconducting wire 103 of the second embodiment will be described in detail below with reference to the drawings, focusing on the differences from the high temperature superconducting wire of the first embodiment.

[0041] FIG. 12 is a perspective view for explaining a high temperature superconducting wire 103 according to the second embodiment. As shown in Fig. 12, the high temperature superconducting wire 103 of the second embodiment is most different from the high temperature superconducting wire of the first embodiment in that it does not have a fixing member made of insulating tape, which is provided in the high temperature superconducting wire of the first embodiment. In this embodiment, the stabilizing member 6 is fixed by adhesion from the beginning in parallel with the superconducting laminate 2, so that the insulation treatment for the high temperature superconducting wire can be performed reliably. In other words, it is the same as when the gap is set to 100% in the above-mentioned gap winding.

[0042] Another difference is that, inside the rectangular tubular insulating member layer 3 of the high temperature superconducting wire 103 of the second embodiment, in addition to the superconducting laminate 2 and the stabilizing member 6, an adhesive 7 (adhesive layer 7) for bonding the superconducting laminate 2 and the stabilizing member 6 is configured (see FIG. 13). The superconducting coil formed by winding the high temperature superconducting wire 103 of the second embodiment also has the same effect as the superconducting coil of the first embodiment. The outer portion of the insulating member layer is subjected to a release treatment, because the release treatment is necessary to prevent the insulating member layer itself from bonding to the adjacent superconducting wire when it is coiled.

[0044] Although the present application describes various exemplary embodiments and examples, the various features, aspects, and functions described in one or more embodiments are not limited to application to a particular embodiment, but may be applied to the embodiments alone or in various combinations. Therefore, countless variations not illustrated are contemplated within the scope of the technology disclosed in this specification. For example, in the above explanation, a fixing member is used as the high-temperature superconducting wire, but the present invention is not limited to this, and in order to ensure that the insulation process for the high-temperature superconducting wire is performed, the insulating member layer 3 may be fixed to the superconducting layer from the beginning. This can also be said to be the case where the gap between the windings of the insulating tape is set to 100% in the above explanation. [Explanation of symbols]

[0045] 1 substrate, 2 superconducting laminated member, 3 insulating member layer, 4, 4a, 4b fixing member (insulating tape), 5 outer fixing member, 6 stabilizing member (copper plated body), 7 adhesive, 8 adhesive insulating tape (adhesive insulating tape), 21 superconducting layer, 22 intermediate layer, 100, 101, 102, 103, 104 high temperature superconducting wire, 200 superconducting coil, 200a, 200b, 200c superconducting coil (part)

Claims

1. A substrate formed in a flat plate shape; a superconducting laminate member disposed on the substrate and having a superconducting layer laminated thereon via an intermediate layer; a metal-plated stabilizing member disposed on the superconducting laminate; an insulating member layer that has been subjected to a release treatment for resin and covers the outer periphery of a laminated structure in which the substrate, the superconducting laminate, and the stabilizing member are laminated together; a tape-shaped fixing member that is wound around the insulating member layer so as to cover the outer periphery of the insulating member layer and fixes the insulating member layer to the superconducting laminate; A high-temperature superconducting wire comprising:

2. The fixing member is an insulating tape, and is wound around the insulating tape in a width direction thereof with no gaps, or is wound around the insulating tape in a width direction thereof with very small gaps therebetween.

2. The high temperature superconducting wire according to claim 1 .

3. The fixing member is an insulating tape that is wound around the insulating tape with a gap therebetween that is equal to or larger than the width of the insulating tape in the width direction of the insulating tape.

2. The high temperature superconducting wire according to claim 1 .

4. 2. The high temperature superconducting wire according to claim 1, wherein the fixing member is a filament that is thinner than the thickness of the superconducting laminate.

5. the insulating member layer is subjected to a release treatment by fluorine processing, and the stabilizing member is disposed in parallel with the superconducting laminate member on the opposite side to the substrate.

2. The high temperature superconducting wire according to claim 1 .

6. A substrate formed in a flat plate shape; a superconducting laminate member disposed on the substrate and having a superconducting layer laminated thereon via an intermediate layer; a stabilizing member arranged in parallel with the superconducting laminate and bonded to the superconducting laminate; an insulating member layer covering an outer periphery of a laminated structure in which the substrate, the superconducting laminate, and the stabilizing member are laminated together; A high-temperature superconducting wire comprising:

7. The stabilizing member is made of an insulating tape having an adhesive surface facing the superconducting laminate.

7. The high temperature superconducting wire according to claim 6.

8. The outer portion of the insulating member layer covering the superconducting laminate is subjected to a release treatment by fluorine treatment.

7. The high temperature superconducting wire according to claim 6.

9. The superconducting layer is made of an oxide superconducting material, and the stabilizing member is formed of copper plating.

9. The high temperature superconducting wire according to claim 1 .

10. A superconducting coil made of the high-temperature superconducting wire according to any one of claims 1 to 3, wherein an insulating tape covering the outer periphery of the high-temperature superconducting wire is wound so as not to overlap adjacent high-temperature superconducting wires. A superconducting coil comprising:

11. A superconducting coil, comprising the high-temperature superconducting wire according to any one of claims 1 to 8 wound therearound.

12. A superconducting coil, comprising the high temperature superconducting wire according to claim 9 wound therearound.

13. A superconducting coil, comprising the high temperature superconducting wire according to claim 10 wound therearound.

14. the insulating member layer is subjected to a release treatment by fluorine processing, and the stabilizing member is disposed in parallel with the superconducting laminate member on the opposite side to the substrate.

3. The high temperature superconducting wire according to claim 2.

15. the insulating member layer is subjected to a release treatment by fluorine processing, and the stabilizing member is disposed in parallel with the superconducting laminate member on the opposite side to the substrate.

4. The high temperature superconducting wire according to claim 3.

16. the insulating member layer is subjected to a release treatment by fluorine processing, and the stabilizing member is disposed in parallel with the superconducting laminate member on the opposite side to the substrate.

5. The high temperature superconducting wire according to claim 4.

17. 8. The high temperature superconducting wire according to claim 7, wherein an outer portion of the insulating member layer covering said superconducting laminated member is subjected to a release treatment by fluorine treatment.

18. 18. The high temperature superconducting wire according to claim 14, wherein the superconducting layer is made of an oxide superconducting material, and the stabilizing member is formed by plating copper.

19. A superconducting coil comprising the high temperature superconducting wire according to claim 14 wound therearound.

20. A superconducting coil, comprising the high temperature superconducting wire according to claim 15 wound around itself.

21. A superconducting coil comprising the high temperature superconducting wire according to claim 16 wound therearound.

22. A superconducting coil, comprising the high temperature superconducting wire according to claim 17 wound therearound.

23. A superconducting coil comprising the high temperature superconducting wire according to claim 18 wound therearound.

Images