CN87101048A - Oxide superconducting coil and manufacture method thereof - Google Patents
Oxide superconducting coil and manufacture method thereof Download PDFInfo
- Publication number
- CN87101048A CN87101048A CN 87101048 CN87101048A CN87101048A CN 87101048 A CN87101048 A CN 87101048A CN 87101048 CN87101048 CN 87101048 CN 87101048 A CN87101048 A CN 87101048A CN 87101048 A CN87101048 A CN 87101048A
- Authority
- CN
- China
- Prior art keywords
- superconducting
- superconducting coil
- metal
- coil
- oxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Coating By Spraying Or Casting (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
The present invention relates to oxide superconducting coil and manufacture method thereof, belong to superconductor and the technical field of the coil of superconduction winding is arranged.The present invention shelters the position that need not spray superconducting coating of metal or earthenware with metal tape or covering agent helically, with heat spraying method powdery superconducting material (is sprayed in turn on metal or the earthenware as Y-Ba-Cu-O) and oxide insulating layer, forms the superconducting coil of sandwich-type after the heat treatment then.Technology of the present invention is simple, cost is low, and its initial superconducting transition temperature of the superconducting coil that obtains is 95-100K, and zero-resistance temperature is 80-90K.
Description
The present invention relates to oxide superconducting coil and manufacture method thereof, belong to superconductor and the technical field of the coil of superconduction winding is arranged.
The yttrium barium copper oxide ceramic superconductive material has the superconducting transition temperature height, and the good superconductivity of zero-resistance temperature more than liquid nitrogen temperature (77K) closely receives the very big concern of international community of physicists over the past half year.Because this material preparation is simple, grasp easily, thereby domestic and international large quantities of laboratory can repeat to prepare this superconductor.But this oxide superconducting materials has the intrinsic fragility of pottery, is difficult for becoming a useful person.Though some news report made various wire rods, coil, film etc. with this superconductor, complete technical scheme all is not provided.
The objective of the invention is to propose a kind of preparation method of oxide superconducting coil and a kind of 77K of having is provided the superconducting coil of above zero-resistance temperature.It is sprayed on the powdered oxide superconductor on metal or oxide ceramics (as aluminium oxide, zirconia, the barium titanate etc.) pipe with heat spraying method and forms.
Method of the present invention is made up of three parts:
1. prepare the superconducting coating material: yittrium oxide, brium carbonate, cupric oxide are pressed atomic ratio Y: Ba: Cu=1: after 2: 3 abundant mixing, add absolute alcohol and be pressed into thin slice or bulk, descended logical oxygen sintering 2-6 hour at 900-1000 ℃ then, fragmentation is sieved and is made 50-200 purpose fine powder behind the sintering.
Certainly also available La-Ba-Cu-O or Y-Ba-Cu-U-O etc. are prepared into powder and are used for spraying.
2. spraying: above-mentioned Powdered superconducting coating material is sprayed on the tubular matrix material with plasma or flame heat spraying methods such as (comprising hydrogen-oxygen flame, oxy-acetylene or oxygen-coal gas flame).The tubular matrix material can be metal tube (as stainless steel tube, nickel pipe, tantalum pipe etc.) or oxide ceramics pipe (as alumina tube, tubular zirconium-oxide, barium titanate pipe etc.).For forming spiral coil, be with metal tape (as Ni, NiCr or Mo band) or the local tubular matrix material that need not spray superconducting coating that hides of covering agent (as the Chinese patent application 87100234 " masking agent for hot spraying " of the previous invention of inventor) helically before the spraying superconducting coating.For forming the multilayer superconducting coil, behind every spraying one deck superconducting coating material, spray one deck oxide (as aluminium oxide, zirconia, barium titanate) insulating barrier so that layer insulation, insulating layer thickness is 0.10-0.25mm.
The tubular matrix material is wanted preheating before spraying, preheat temperature 150-300 ℃.During spraying, the tubular matrix material will constantly rotate, so that spraying evenly.After having sprayed one deck superconducting coating material, peel off the sheet metal of covering or wash the spraying covering agent that reduces phlegm and internal heat with water, to be dried after, spraying insulating barrier, and then coated covering agent (or hide with metal tape) can spray second layer superconducting coil.When the coated covering agent, should note being connected between second layer coil and ground floor coil.Repeat spraying like this, can make the superconducting coil of the required number of plies.
3. heat treatment: the superconducting coil after the spraying must just can present superconducting characteristic through Overheating Treatment.Coil is placed 850-1000 ℃ constant temperature oven, under oxygen atmosphere, handled 1-5 hour, can be superconducting characteristic.
After the heat treatment cooling, spray the copper layer again on the helical of one deck superconduction in the end, also can no longer be coated with copper.
The superconducting coil that makes with method of the present invention is characterized in that, outside tubular matrix material (metal tube or earthenware), is coated with helical form superconducting coil coating.As making lattice coil, then can further spray insulating barrier-superconducting layer in turn.Insulating barrier can be aluminium oxide, zirconia or barium titanate.Can obtain the superconducting coil of one or more layers superconduction winding so as required.On outermost one deck superconduction winding, copper can be sprayed, also copper can be do not sprayed.End at innermost layer and outermost layer superconduction winding respectively has an electrode, directly is electrically connected by superconducting layer at an end of two layers of superconduction winding.
Use method of the present invention can make oxide superconducting coil easily, its technology is simple, particularly adopts common flame spraying method, and cost is low, effective.Its initial superconducting transition temperature of the superconducting coil that obtains is 95-100K, and zero-resistance temperature is 80-90K.
Fig. 1 is an oxide superconducting coil structure chart of the present invention, also as embodiments of the invention.1 is that metal tube or earthenware can be stainless steel tube, nickel pipe, tantalum pipe, alumina tube, tubular zirconium-oxide, barium titanate pipe etc. among the figure, the 2nd, oxide superconducting helical form coating (present embodiment Y-Ba-Cu-O superconductor, can certainly be La-Ba-Cu-O or Y-Ba-Cu-U-O material), the 3rd, oxide insulating layer, can be aluminium oxide, zirconia or barium titanate, the 4th, copper layer, the 5th, electrode.
Present embodiment is the superconducting coil that three helical layer shape superconducting coatings are arranged, and can certainly be single or multiple lift, shows needs and decides.The thickness of helical form superconducting coating and width also can be determined according to actual needs.Spraying copper layer 4 is for improving heat conductivility, but also double as contact conductor.But it is not necessary being coated with the copper layer.
Below in conjunction with Fig. 1 technological process of the present invention is described:
A. use metal tape (as Ni, Ni-Cr, Mo band) or masking agent for hot spraying (Chinese patent application 87100234) to shelter metal or earthenware 1, promptly hide the position (being the later zone that is insulated layer filling between the helical form superconducting layer spiral coil among Fig. 1) that metal or earthenware need not spray superconducting coating.
B. the preheating under 150-300 ℃ of temperature with metal tube or earthenware is sprayed on the powdered oxide superconductor on metal or the earthenware by hot spray process (can use plasma spraying, also can spray with hydrogen-oxygen, oxy-acetylene or oxygen-gas burner).Powdery superconducting material is generally Y-Ba-Cu-O, can certainly be La-Ba-Cu-O or Y-B-Cu-U-O.Powdery superconducting material is that fragmentation was screened into 50-200 purpose fine powder after these elements also led to the oxygen sintering by set of dispense specific pressure slabbing or bulk.
C. remove masking materials such as metal tape or covering agent, form ground floor helical form superconducting coating 2, the thermal spraying oxide insulating layer 3 then.Oxide insulating layer can be aluminium oxide, zirconia or barium titanate.Thickness 0.10-0.25mm.
D. repeat a, b, c, can form the multilayer superconducting coil.
E. superconducting coil is placed 850-1000 ℃ constant temperature oven, under oxygen atmosphere heat treatment 1-5 hour.
F. after cooling, spraying copper 4 on outermost layer superconduction helical.This technology is also nonessential.
Claims (10)
1, a kind of manufacture method of oxide superconducting coil comprises the preparation of powdered oxide superconductor, it is characterized in that
A. shelter the position that need not spray superconducting coating of metal or earthenware with metal tape or masking agent for hot spraying helically,
B. the preheating under 150-300 ℃ of temperature with metal tube or earthenware evenly is sprayed on powdery superconducting material on metal or the earthenware with hot spray process,
C. remove masking materials such as metal tape or masking agent for hot spraying, form the helical form superconducting coating, spray oxide insulating layer with hot spray process then,
D. repeat a, b, c, can form the multilayer superconducting coil,
E. superconducting coil is placed 850-1000 ℃ constant temperature oven, under oxygen atmosphere heat treatment 1-5 hour.
2, by the manufacture method of the described superconducting coil of claim 1, wherein said metal tape can be Ni, Ni-Cr or Mo band among the 1a.
3, by the manufacture method of the described superconducting coil of claim 1, wherein said metal or earthenware are stainless steel tube, nickel pipe, tantalum pipe, alumina tube, tubular zirconium-oxide or barium titanate pipe among 1a, the 1b.
4, by the manufacture method of the described superconducting coil of claim 1, wherein the said hot spray process of 1b and 1c can be a plasma spraying method, also can be flame spraying.
5, by the manufacture method of the described superconducting coil of claim 4, wherein said flame spraying can be hydrogen-oxygen flame, oxy-acetylene flame, oxygen-coal gas flame spraying.
6, by the manufacture method of the described superconducting coil of claim 1, wherein the said oxide insulating layer of 1c can be aluminium oxide, zirconia or barium titanate layer, thickness 0.10-0.25mm.
7, a kind of superconducting coil of making by the method for claim 1, it is characterized in that on metal and the earthenware, being coated with Y-Ba-Cu-O superconduction helical form coating, oxide insulating layer in turn, can be individual layer superconducting layer coil, also can be the lattice coil that multilayer superconducting layer-insulating barrier forms.
8, by the described superconducting coil of claim 7, it is characterized in that said metal or earthenware are stainless steel tube, nickel pipe, tantalum pipe, alumina tube, zirconia or barium titanate pipe.
9, by the described superconducting coil of claim 7, it is characterized in that said oxide insulating layer can be aluminium oxide, zirconia or barium titanate, thickness 0.10-0.25mm.
10, by claim 7,8,9 described superconducting coils, it is characterized in that on outermost layer superconduction helical, being coated with the copper layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87101048 CN87101048A (en) | 1987-05-23 | 1987-05-23 | Oxide superconducting coil and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87101048 CN87101048A (en) | 1987-05-23 | 1987-05-23 | Oxide superconducting coil and manufacture method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87101048A true CN87101048A (en) | 1988-12-14 |
Family
ID=4813138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87101048 Pending CN87101048A (en) | 1987-05-23 | 1987-05-23 | Oxide superconducting coil and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87101048A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101542649B (en) * | 2007-04-17 | 2011-12-07 | 住友电气工业株式会社 | Superconducting coil and superconductor used for the same |
| CN103765532A (en) * | 2011-08-24 | 2014-04-30 | 西门子公司 | Method for producing superconducting coils and apparatus comprising a superconducting coil produced in accordance with the method |
| CN104779031A (en) * | 2014-01-15 | 2015-07-15 | 中国科学院合肥物质科学研究院 | Narrow-space high-efficiency cooling device with multi-pipe embedded interlayer flow resistance connected in series |
| CN107578878A (en) * | 2017-09-19 | 2018-01-12 | 杭州电子科技大学 | Full ceramic high temperature superconducting coil and its manufacture method |
| CN109440045A (en) * | 2018-12-29 | 2019-03-08 | 日照钢铁控股集团有限公司 | A kind of ultra-thin process for protecting of electromagnetic induction heating coil |
-
1987
- 1987-05-23 CN CN 87101048 patent/CN87101048A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101542649B (en) * | 2007-04-17 | 2011-12-07 | 住友电气工业株式会社 | Superconducting coil and superconductor used for the same |
| CN103765532A (en) * | 2011-08-24 | 2014-04-30 | 西门子公司 | Method for producing superconducting coils and apparatus comprising a superconducting coil produced in accordance with the method |
| CN104779031A (en) * | 2014-01-15 | 2015-07-15 | 中国科学院合肥物质科学研究院 | Narrow-space high-efficiency cooling device with multi-pipe embedded interlayer flow resistance connected in series |
| CN104779031B (en) * | 2014-01-15 | 2017-10-03 | 中国科学院合肥物质科学研究院 | A kind of narrow space potent cooling device of the nested interlayer flow resistance series connection of multitube |
| CN107578878A (en) * | 2017-09-19 | 2018-01-12 | 杭州电子科技大学 | Full ceramic high temperature superconducting coil and its manufacture method |
| CN109440045A (en) * | 2018-12-29 | 2019-03-08 | 日照钢铁控股集团有限公司 | A kind of ultra-thin process for protecting of electromagnetic induction heating coil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5232908A (en) | Method of manufacturing an oxide superconductor/metal laminate | |
| EP0283313B1 (en) | Method of producing oxide superconducting wire and oxide superconducting wire produced by this method | |
| KR880014017A (en) | Method of manufacturing thin film superconducting oxide film | |
| US5347085A (en) | Multifilamentary oxide superconducting wires and method of manufacturing the same | |
| CA1305259C (en) | Crystalline rare earth alkaline earth copper oxide thick film conductor | |
| EP0292382B1 (en) | Process for producing a compound oxide type superconducting material | |
| CN87101048A (en) | Oxide superconducting coil and manufacture method thereof | |
| US20030130128A1 (en) | Method of fabricating fine high temperature superconducting composites | |
| AU779553B2 (en) | Oxide high-temperature superconducting wire and method of producing the same | |
| JP2889286B2 (en) | Superconducting body and superconducting coil formed using the superconducting body | |
| EP0308326A1 (en) | A process for producing an elongated superconductor | |
| JPH06251929A (en) | Manufacture of oxide superconducting coil | |
| JP2583311B2 (en) | Manufacturing method of oxide superconducting conductor | |
| JPS63299012A (en) | Superconductive fiber and its manufacture | |
| JP2509642B2 (en) | Superconducting power lead manufacturing method | |
| JP3029153B2 (en) | Manufacturing method of multilayer ceramic superconductor | |
| US5260265A (en) | Production of oxide superconducting films by multilayer deposition | |
| US5646097A (en) | Method of fabricating a (1223) Tl-Ba-Ca-Cu-O superconductor | |
| JP2563391B2 (en) | Superconducting power lead | |
| JPS63240005A (en) | Manufacture of superconducting material | |
| JP2703227B2 (en) | Superconductor device | |
| CN87101049A (en) | The preparation method of oxide superconducting composite strip | |
| JPH01143108A (en) | Manufacture of ceramics superconductive wire | |
| CA1338753C (en) | Method of producing oxide superconducting wire and oxide superconducting wire produced by this method | |
| JP3448597B2 (en) | Bismuth-based oxide superconducting composite and method for producing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |