JP4227143B2 - Nb3Sn超電導線材およびそのための前駆体 - Google Patents
Nb3Sn超電導線材およびそのための前駆体 Download PDFInfo
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- 239000002243 precursor Substances 0.000 title claims abstract description 77
- 229910000657 niobium-tin Inorganic materials 0.000 title 1
- 239000010949 copper Substances 0.000 claims abstract description 80
- 238000009792 diffusion process Methods 0.000 claims abstract description 73
- 230000004888 barrier function Effects 0.000 claims abstract description 54
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 38
- 239000000956 alloy Substances 0.000 claims abstract description 38
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 230000002093 peripheral effect Effects 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910017755 Cu-Sn Inorganic materials 0.000 claims abstract description 15
- 229910017927 Cu—Sn Inorganic materials 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 21
- 229910052758 niobium Inorganic materials 0.000 claims description 15
- 229910052718 tin Inorganic materials 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 50
- 238000000034 method Methods 0.000 description 29
- 229910000906 Bronze Inorganic materials 0.000 description 20
- 239000010974 bronze Substances 0.000 description 20
- 239000002184 metal Substances 0.000 description 19
- 229910052751 metal Inorganic materials 0.000 description 19
- 239000002131 composite material Substances 0.000 description 16
- 239000011159 matrix material Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 238000005491 wire drawing Methods 0.000 description 12
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 229910052715 tantalum Inorganic materials 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 230000001747 exhibiting effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- -1 Cu—Sn compound Chemical class 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 239000003984 copper intrauterine device Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/02—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by their form
- H01B12/10—Multi-filaments embedded in normal conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N60/00—Superconducting devices
- H10N60/01—Manufacture or treatment
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N60/00—Superconducting devices
- H10N60/01—Manufacture or treatment
- H10N60/0184—Manufacture or treatment of devices comprising intermetallic compounds of type A-15, e.g. Nb3Sn
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Power Engineering (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
直径:60mmのNb棒を、外径:65mm、内径:35mmのCu−15.5質量%Sn合金中に挿入し、エレクトロンビーム溶接によって端部を封止し、押出しビレットを作製した。この押出しビレットを、途中で適宜500〜600℃で1時間の焼鈍を入れながら伸線加工し、六角断面形状のCu−Sn/Nb複合線(六角対辺:2.0mm)とした。このCu−Sn/Nb複合線を1369本束ねて、その外周に厚さ:0.1mmのCuシートを下記表1に示す回数巻き、更にその外周に厚さ:0.2mmのNbシートを5回巻き(拡散障壁層)、その周囲に外径:120mm、内径:87mmのCu(安定化銅層)を配置した。こうして得られた複合線材を、エレクトロンビーム溶接によって端部を封止し、押し出しビレット(多芯型ビレット)とした。
熱処理前の前駆体研磨面に垂直に埋め込み研磨し、断面について電子顕微鏡観察を行なうことによって、距離dB-fを測定した。
ピックアップコイル法によって、液体ヘリウム中(温度4.2K)で±3T(テスラ)の振動磁場中で測定した。
液体ヘリウム中(温度4.2K)で、12T(テスラ)の外部磁場の下、試料(超電導線材)に通電し、4端子法によって発生電圧を測定し、この値が0.1μV/cmの電界が発生した電流値(臨界電流Ic)を測定し、この電流値を、線材の非Cu部当りの断面積で除して臨界電流密度Jcを求めた。
実施例1において、Cuシートを巻付ける代わりに、厚さ:0.2mm、幅:20mmのTaシートのスリットを、最近接フィラメント部分に相当する拡散障壁層内周12箇所に配置して、押出しビレット(多芯型ビレット)を作製した。この押出しビレットを、押出し、伸線加工によって線径0.5mmの線材(超電導線材製造用前駆体)にした。この伸線加工の段階で断線は発生しなかった。また伸線加工後の段階で、拡散障壁層と最近接フィラメントとの距離dB-fは2.5μmである。
実施例1において、Cuシートを巻き付ける代わりに、厚さ:0.4mm、幅:20mmのCuシートのスリットを、最近接フィラメント部分に相当する拡散障壁層内周12箇所に配置して、押出しビレット(多芯型ビレット)を作製した。この押出しビレットを、押出し、伸線加工によって線径0.5mmの線材(超電導線材製造用前駆体)にした。この伸線加工の段階で断線は発生しなかった。また伸線加工後の段階で、拡散障壁層と最近接フィラメントとの距離dB-fは2.3μmである。
直径:18mmのNb棒を、外径:21mm、内径:18mmのCuパイプ内に挿入し、ダイス伸線加工によって、六角断面形状のCu/Nb複合線(六角対辺:2.0mm)に仕上げ、400mmの長さに切断した。このCu/Nb複合線を、外径:143mm、内径:124mmのCu管内に336本束ねて、Cu内筒(外径:70mm、内径:61mm)を中心にして配置し、エレクトロンビーム溶接によって蓋をして、押出しビレットとした。
2 Nb基金属芯材
3 Sn基金属芯
4 Cu基合金(Cu母材)
5 Nb基合金芯
6,6a 拡散障壁層
7 安定化銅層
10 マトリクス
11 Nb基フィラメント
12 CuまたはCu基合金からなる層
15 超電導コア部
Claims (4)
- Nb3Sn超電導線材を製造する際に用いる超電導線材製造用前駆体であって、Cu−Sn基合金中に、複数本のNbまたはNb基合金からなるNb基フィラメントが配置された超電導コア部と、その外周にNbからなる拡散障壁層および安定化銅層を有する超電導線材製造用前駆体で、最終の減面加工後でNb 3 Sn生成熱処理前の前駆体において、
前記拡散障壁層の内周全面に、CuまたはCu基合金からなる層を形成することによって、前記拡散障壁層の内周面から、前記超電導コア部の最外層部に存在するNb基フィラメントまでの距離を、2μm以上、10μm以下に設定したものであることを特徴とするNb3Sn超電導線材製造用前駆体。 - Nb3Sn超電導線材を製造する際に用いる超電導線材製造用前駆体であって、CuまたはCu基合金中に、1本または複数本のNbまたはNb基合金からなるNb基フィラメントと、1本または複数本のSnまたはSn基合金芯が配置された超電導コア部と、その外周にNbからなる拡散障壁層および安定化銅層を有する超電導線材製造用前駆体で、最終の減面加工後でNb 3 Sn生成熱処理前の前駆体において、
前記拡散障壁層の内周全面に、CuまたはCu基合金からなる層を形成することによって、前記拡散障壁層の内周面から、前記超電導コア部の最外層部に存在するNb基フィラメントまでの距離を、2μm以上、40μm以下に設定したものであることを特徴とするNb3Sn超電導線材製造用前駆体。 - 前記拡散障壁層の内周面のうち、前記Nb基フィラメントが近接する位置に、TaまたはCu若しくはCu基合金からなる層を形成することによって、前記拡散障壁層の内周面から、前記超電導コア部の最外層部に存在するNb基フィラメントまでの距離を2μm以上としたものである請求項1または2に記載のNb3Sn超電導線材製造用前駆体。
- 請求項1〜3のいずれかに記載の超電導線材製造用前駆体に対して、Nb3Sn生成熱処理を施すことによってNb3Sn系超電導相を形成したものであることを特徴とするNb3Sn超電導線材。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006046742A JP4227143B2 (ja) | 2006-02-23 | 2006-02-23 | Nb3Sn超電導線材およびそのための前駆体 |
KR1020087020541A KR100970813B1 (ko) | 2006-02-23 | 2007-02-20 | Nb3Sn 초전도 선재 제조용 전구체 및 Nb3Sn 초전도선재 |
PCT/JP2007/053115 WO2007099820A1 (ja) | 2006-02-23 | 2007-02-20 | Nb3Sn超電導線材製造用の前駆体およびNb3Sn超電導線材 |
EP07714615A EP2006863B1 (en) | 2006-02-23 | 2007-02-20 | PRECURSOR FOR MANUFACTURE OF Nb3Sn SUPERCONDUCTING WIRE ROD, AND Nb3Sn SUPERCONDUCTING WIRE ROD |
AT07714615T ATE541321T1 (de) | 2006-02-23 | 2007-02-20 | Precursor zur herstellung eines supraleitenden nb3sn-drahtstabs und supraleitender nb3sn- drahtstab |
CN2007800065146A CN101390175B (zh) | 2006-02-23 | 2007-02-20 | Nb3Sn超导线材的制备用前体和Nb3Sn超导线材 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006046742A JP4227143B2 (ja) | 2006-02-23 | 2006-02-23 | Nb3Sn超電導線材およびそのための前駆体 |
Publications (2)
Publication Number | Publication Date |
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JP2007227148A JP2007227148A (ja) | 2007-09-06 |
JP4227143B2 true JP4227143B2 (ja) | 2009-02-18 |
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JP2006046742A Expired - Fee Related JP4227143B2 (ja) | 2006-02-23 | 2006-02-23 | Nb3Sn超電導線材およびそのための前駆体 |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2006863B1 (ja) |
JP (1) | JP4227143B2 (ja) |
KR (1) | KR100970813B1 (ja) |
CN (1) | CN101390175B (ja) |
AT (1) | ATE541321T1 (ja) |
WO (1) | WO2007099820A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010129453A (ja) * | 2008-11-28 | 2010-06-10 | Kobe Steel Ltd | ブロンズ法Nb3Sn超電導線材 |
CN102082009B (zh) * | 2010-12-28 | 2012-05-30 | 西部超导材料科技有限公司 | 一种青铜法Nb3Sn超导线材的制备工艺 |
US9916919B2 (en) * | 2014-02-18 | 2018-03-13 | Ohio State Innovation Foundation | Superconducting wires and methods of making thereof |
US10573435B2 (en) * | 2016-01-29 | 2020-02-25 | Bruker Ost Llc | Method for producing a multifilament Nb3Sn superconducting wire |
CN110580984B (zh) * | 2018-06-11 | 2021-08-03 | 西部超导材料科技股份有限公司 | 一种覆铜加工青铜/Nb复合棒的制备方法 |
JP7358688B2 (ja) * | 2018-09-28 | 2023-10-11 | 古河電気工業株式会社 | 化合物超電導撚線およびその巻替え方法 |
CN111105901B (zh) * | 2019-12-23 | 2022-03-08 | 福建师范大学 | 一种改良型青铜法Nb3Sn超导线材的制备方法 |
KR102685344B1 (ko) * | 2023-12-18 | 2024-07-16 | 케이. 에이. 티. (주) | 초전도 선재 제조용 전구체 및 이를 이용한 초전도 선재 |
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JPS5424109B2 (ja) | 1973-02-27 | 1979-08-18 | ||
DE2835974B2 (de) * | 1977-09-12 | 1981-07-09 | Airco, Inc., Montvale, N.J. | Verfahren zur Herstellung eines zusammengesetzten vieladrigen Supraleiters |
JPS60253114A (ja) | 1984-05-29 | 1985-12-13 | 昭和電線電纜株式会社 | Nb↓3Sn超電導線の製造方法 |
US4973365A (en) * | 1989-06-06 | 1990-11-27 | Advanced Superconductors, Inc. | Process for producing monocore precursor Nb3 Sn superconductor wire |
JP2749652B2 (ja) * | 1989-08-09 | 1998-05-13 | 古河電気工業株式会社 | 超電導線 |
KR950013672B1 (ko) * | 1992-09-14 | 1995-11-13 | 노해도 | 운동장 선 구획기 |
JPH08287752A (ja) * | 1995-04-11 | 1996-11-01 | Japan Atom Energy Res Inst | 超電導線材の製造方法 |
JPH09245539A (ja) * | 1996-03-11 | 1997-09-19 | Furukawa Electric Co Ltd:The | 超電導線 |
JP2002117734A (ja) * | 2000-10-05 | 2002-04-19 | Mitsubishi Electric Corp | 化合物超電導線材およびその製造方法 |
US7216418B2 (en) * | 2003-10-23 | 2007-05-15 | Oxford Superconducting Technology | Method for using divider rods for separating superconducting regions in fine filament internal tin wire |
JP2006032190A (ja) * | 2004-07-20 | 2006-02-02 | Mitsubishi Electric Corp | Nb−Sn化合物系超電導線及びその前駆体 |
JP2006046742A (ja) | 2004-08-03 | 2006-02-16 | Matsushita Electric Ind Co Ltd | 冷蔵庫の扉装置 |
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2006
- 2006-02-23 JP JP2006046742A patent/JP4227143B2/ja not_active Expired - Fee Related
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2007
- 2007-02-20 CN CN2007800065146A patent/CN101390175B/zh not_active Expired - Fee Related
- 2007-02-20 AT AT07714615T patent/ATE541321T1/de active
- 2007-02-20 KR KR1020087020541A patent/KR100970813B1/ko active IP Right Grant
- 2007-02-20 WO PCT/JP2007/053115 patent/WO2007099820A1/ja active Application Filing
- 2007-02-20 EP EP07714615A patent/EP2006863B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
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EP2006863A1 (en) | 2008-12-24 |
WO2007099820A1 (ja) | 2007-09-07 |
ATE541321T1 (de) | 2012-01-15 |
JP2007227148A (ja) | 2007-09-06 |
CN101390175A (zh) | 2009-03-18 |
KR20080088650A (ko) | 2008-10-02 |
KR100970813B1 (ko) | 2010-07-16 |
EP2006863A4 (en) | 2010-10-27 |
EP2006863B1 (en) | 2012-01-11 |
CN101390175B (zh) | 2011-12-14 |
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