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公开(公告)号：US20060205602A1
公开(公告)日：2006-09-14
申请号：US11363653
申请日：2006-02-28
申请人： Kazuhiro Endo
发明人： Kazuhiro Endo
IPC分类号： H01L39/00
CPC分类号： H01L39/2458 , H01L39/2496 , Y10S505/729 , Y10S505/782
摘要： A well-crystallized a-axis (or b-axis) oriented Bi-based oxide superconductor thin film is manufactured in order to obtain a high performance layered Josephson junction using a Bi-based oxide superconductor. In manufacturing a well-crystallized a-axis oriented Bi-based oxide superconductor thin film, a (110) plane of a single crystal substrate of LaSrAlO4 or a vicinal cut substrate of a single crystal of LaSrAlO4 is used, on which an a-axis oriented Bi-2223 or Bi-2201 thin film is heteroepitaxially grown at a low film forming temperature T1, then homoepitaxially grown on the grown film at a high film forming temperature T2 (double temperature growth method). Although it is difficult to grow an a-axis oriented film directly on a substrate at a high temperature T2, an a-axis oriented Bi-2223 or Bi-2201 thin film is formed on the base by previously forming the base film at low deposition temperature.
摘要翻译： 为了获得使用Bi基氧化物超导体的高性能层状约瑟夫逊结，制造了良好结晶的a轴（或b轴）取向的Bi基氧化物超导体薄膜。 在制造精密结晶的a轴取向的Bi基氧化物超导体薄膜中，LaSrAlO 4单晶衬底的（110）面或LaSrAlO 4单晶的连续切割衬底， 使用其中a轴取向的Bi-2223或Bi-2201薄膜在低成膜温度T 1异质外延生长，然后在其上均匀生长的SUB> 4
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公开(公告)号：US20060078670A1
公开(公告)日：2006-04-13
申请号：US11133341
申请日：2005-05-20
IPC分类号： B05D5/12
CPC分类号： C04B41/009 , C04B41/5074 , C04B41/85 , H01L39/2429 , Y10S505/701 , Y10S505/726 , Y10S505/739 , Y10S505/782 , Y10S505/807 , C04B41/4539 , C04B35/04
摘要： The present invention provides an oxide superconductor thick film which is formed on a substrate or a board and has a high Jc and Ic and a method for manufacturing the same. Predetermined amounts of materials containing elements of Bi, Pb, Sr, Ca and Cu are weighed, mixed and subjected to steps of calcining, milling, and drying, and thereafter an organic binder and an organic vehicle are added thereto to prepare a (Bi, Pb)2+aSr2Ca2Cu3O2 superconductive paste, which is applied to the surface of a substrate or a board in a thickness of 260 μm or more and dried. Thereafter, the paste is first subjected to burning at temperatures of 835° C. to 840° C. for 100 hours, then pressurization, and further burning at temperatures of 835° C. to 840° C. for 100 hours, thereby preparing an oxide superconductor thick film having a film thickness of 130 μm or more having a high Jc and Ic.
摘要翻译： 本发明提供一种形成在基板或基板上并具有高Jc和Ic的氧化物超导体厚膜及其制造方法。 称量预定量的含有Bi，Pb，Sr，Ca和Cu元素的材料，混合并进行煅烧，研磨和干燥的步骤，然后向其中加入有机粘合剂和有机载体以制备（Bi， Pb）2 + a 2 Sr 2 Ca 2 O 3超导性糊剂 ，其施加到厚度为260μm以上的基板或板的表面上并干燥。 此后，首先在835℃至840℃的温度下将糊状物烧制100小时，然后加压，并在835℃至840℃的温度下进一步燃烧100小时，由此制备 氧化物超导体厚膜，具有130μm以上的膜厚度，具有高Jc和Ic。
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公开(公告)号：US06809042B2
公开(公告)日：2004-10-26
申请号：US10227440
申请日：2002-08-26
IPC分类号： H01L2131
CPC分类号： C04B41/009 , C04B41/5074 , C04B41/85 , H01L39/2429 , Y10S505/701 , Y10S505/726 , Y10S505/739 , Y10S505/782 , Y10S505/807 , C04B41/4539 , C04B35/04
摘要： The present invention provides an oxide superconductor thick film which is formed on a substrate or a board and has a high Jc and Ic and a method for manufacturing the same. Predetermined amounts of materials containing elements of Bi, Pb, Sr, Ca and Cu are weighed, mixed and subjected to steps of calcining, milling, and drying, and thereafter an organic binder and an organic vehicle are added thereto to prepare a (Bi, Pb)2+aSr2Ca2Cu3Oz, superconductive paste, which is applied to the surface of a substrate or a board in a thickness of 260 &mgr;m or more and dried. Thereafter, the paste is first subjected to burning at temperatures of 835° C. to 840° C. for 100 hours, then pressurization, and further burning at temperatures of 835° C. to 840° C. for 100 hours, thereby preparing an oxide superconductor thick film having a film thickness of 130 &mgr;m or more having a high Jc and Ic.
摘要翻译： 本发明提供一种形成在基板或基板上并具有高Jc和Ic的氧化物超导体厚膜及其制造方法。 称量预定量的含有Bi，Pb，Sr，Ca和Cu元素的材料，混合并进行煅烧，研磨和干燥的步骤，然后向其中加入有机粘合剂和有机载体以制备（Bi， Pb）2 + aSr2Ca2Cu3Oz，超导糊剂，其被施加到厚度为260μm以上的基板或板的表面上并干燥。 此后，首先在835℃至840℃的温度下将糊状物烧制100小时，然后加压，并在835℃至840℃的温度下进一步燃烧100小时，由此制备 氧化物超导体厚膜，具有130μm以上的膜厚度，具有高Jc和Ic。
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公开(公告)号：US20030096709A1
公开(公告)日：2003-05-22
申请号：US10227440
申请日：2002-08-26
IPC分类号： H01B001/00 , H01F001/00 , C04B002/00
CPC分类号： C04B41/009 , C04B41/5074 , C04B41/85 , H01L39/2429 , Y10S505/701 , Y10S505/726 , Y10S505/739 , Y10S505/782 , Y10S505/807 , C04B41/4539 , C04B35/04
摘要： The present invention provides an oxide superconductor thick film which is formed on a substrate or a board and has a high Jc and Ic and a method for manufacturing the same. Predetermined amounts of materials containing elements of Bi, Pb, Sr, Ca and Cu are weighed, mixed and subjected to steps of calcining, milling, and drying, and thereafter an organic binder and an organic vehicle are added thereto to prepare a (Bi, Pb)2nullaSr2Ca2Cu3Oz, superconductive paste, which is applied to the surface of a substrate or a board in a thickness of 260 nullm or more and dried. Thereafter, the paste is first subjected to burning at temperatures of 835null C. to 840null C. for 100 hours, then pressurization, and further burning at temperatures of 835null C. to 840null C. for 100 hours, thereby preparing an oxide superconductor thick film having a film thickness of 130 nullm or more having a high Jc and Ic.
摘要翻译： 本发明提供一种形成在基板或基板上并具有高Jc和Ic的氧化物超导体厚膜及其制造方法。 称量预定量的含有Bi，Pb，Sr，Ca和Cu元素的材料，混合并进行煅烧，研磨和干燥的步骤，然后向其中加入有机粘合剂和有机载体以制备（Bi， Pb）2 + aSr2Ca2Cu3Oz，超导糊剂，其被施加到厚度为260μm以上的基板或板的表面上并干燥。 此后，首先在835℃至840℃的温度下将糊状物烧制100小时，然后加压，并在835℃至840℃的温度下进一步燃烧100小时，由此制备 氧化物超导体厚膜，具有130μm以上的膜厚度，具有高Jc和Ic。
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公开(公告)号：US06284712B1
公开(公告)日：2001-09-04
申请号：US09451742
申请日：1999-11-30
IPC分类号： C04B3564
CPC分类号： H01L39/2464 , Y10S505/742 , Y10S505/782 , Y10S505/785
摘要： A method for preparing a BSCCO-2223 oxide superconducting article includes annealing an oxide superconductor article comprised of BSCCO-2223 oxide superconductor at a temperature selected from the range of about 500° C.≦T≦787° C. and an annealing atmosphere having an oxygen pressure selected from within the region having a lower bound defined by the equation, PO2(lower)≧3.5×1010exp(−32,000/T+273) and an upper bound defined by the equation, PO2(upper)≦1.1×1012exp(−32,000/T+273). The article is annealed for a time sufficient to provide at least a 10% increase in critical current density as compared to the critical current density of the pre-anneal oxide superconductor article. An oxide superconductor having the formula Bi2−yPbySr2Ca2Cu3O10+x, where 0≦x≦1.5 and where 0≦y≦0.6 is obtained, the oxide superconductor characterized by a critical transition temperature of greater than 111.0 K, as determined by four point probe method.
摘要翻译： 制备BSCCO-2223氧化物超导制品的方法包括在选自约500℃的温度范围内对由BSCCO-2223氧化物超导体组成的氧化物超导体制品进行退火。<= T <= 787℃和退火气氛 具有从具有由下式定义的下限的区域内选择的氧气压力：PO2（下）≥3.5×1010exp（-32,000 / T + 273），由上式定义的上限PO2（上）<= 1.1 x1012exp（-32,000 / T + 273）。 与预退火氧化物超导体制品的临界电流密度相比，该制品退火足以提供临界电流密度至少10％的时间。 具有式Bi2-yPbySr2Ca2Cu3O10 + x的氧化物超导体，其中0 <= x <= 1.5，其中0 <= y <= 0.6，所述氧化物超导体的特征在于临界转变温度大于111.0K，如由 四点探针法。
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公开(公告)号：US06265354B1
公开(公告)日：2001-07-24
申请号：US09659218
申请日：2000-09-11
申请人： Hengning Wu
发明人： Hengning Wu
IPC分类号： C04B35626
CPC分类号： C04B35/4525 , H01L39/248 , Y10S505/74 , Y10S505/782 , Y10T29/49004 , Y10T29/49014
摘要： The present invention provides a method to prepare a (Bi,Pb)SrCaCuO-2223 superconductor, in particular a (Bi,Pb)SrCaCuO-2223 superconducting wire with improved critical current density at reduced cost. In the method of preparing a (Bi,Pb)SrCaCuO-2223 superconducting wire comprising the steps of filling precursor powder into a metal sheath, working the same into a wire by performing deformation processing in this state, and heat treating the wire, the precursor powder is prepared from a powder containing a fully doped 2212 phase and a powder containing an under-doped 2212 phase. This precursor powder provides the advantage of better texture formation, faster and more homogeneous reaction to form the 2223 phase, and improved connectivity between the 2223 grains during the heat treatment process, leading to improved critical current density. Furthermore, the method offers a possibility to use metals other than a silver-based material in the sheath material, thus significantly reducing the materials cost of the (Bi,Pb)SrCaCuO-2223 superconducting wire. In the method of preparing a (Bi,Pb)SrCaCuO-2223 superconductor, the same mechanism is used to improve the texture formation and critical current density of monolithic and thick film superconductors.
摘要翻译： 本发明提供了一种制备（Bi，Pb）SrCaCuO-2223超导体的方法，特别是以降低的成本提高了临界电流密度的（Bi，Pb）SrCaCuO-2223超导线。 在制备（Bi，Pb）SrCaCuO-2223超导线材的方法中，包括以下步骤：将前体粉末填充到金属护套中，通过在该状态下进行变形处理，将其加工成线材，并对线材进行热处理 粉末由含有完全掺杂的2212相的粉末和含有未掺杂的2212相的粉末制备。 该前体粉末提供了更好的纹理形成，更快和更均匀的反应以形成2223相的优点，以及在热处理过程中改善2223晶粒之间的连接性，导致改进的临界电流密度。 此外，该方法提供了在护套材料中使用银基材料以外的金属的可能性，因此显着降低（Bi，Pb）SrCaCuO-2223超导线材的材料成本。 在制备（Bi，Pb）SrCaCuO-2223超导体的方法中，使用相同的机理来改善单片和厚膜超导体的纹理形成和临界电流密度。
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公开(公告)号：US6080703A
公开(公告)日：2000-06-27
申请号：US191566
申请日：1998-11-13
CPC分类号： C01G29/006 , H01L39/126 , C01P2002/72 , C01P2002/77 , C01P2004/03 , C01P2006/32 , C01P2006/40 , C01P2006/42 , C01P2006/80 , Y10S505/782 , Y10S505/783
摘要： A method for producing a high temperature superconductor system having the composition TlBiBaCaCuO. The system exhibits a T.sub.c of at least 116 K. The method includes the steps of mixing compounds including Tl, Bi, Ba, Ca, Cu, and O to create a mixture. The mixture is heated. The mixture is then cooled.
摘要翻译： 一种具有组成TlBiBaCaCuO的高温超导体系的制造方法。 该系统显示至少为116K的Tc。该方法包括混合包括Tl，Bi，Ba，Ca，Cu和O的化合物以产生混合物的步骤。 混合物加热。 然后将混合物冷却。
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公开(公告)号：US5776862A
公开(公告)日：1998-07-07
申请号：US684985
申请日：1996-07-22
申请人： Ryo Usami , Kazuyuki Isawa , Hiroshi Kubota , Roman Puzniak , Hisao Yamauchi , Shoji Tanaka
发明人： Ryo Usami , Kazuyuki Isawa , Hiroshi Kubota , Roman Puzniak , Hisao Yamauchi , Shoji Tanaka
CPC分类号： H01L39/2419 , H01L39/126 , Y10S505/742 , Y10S505/782
摘要： The hole density of an oxide superconductor having holes as carriers is higher than the hole density to bring the highest value of the superconductivity critical temperature Tc thereof, and it can be made higher than the optimal density to bring the highest Tc value by treating the oxide superconductor with heat in an oxidizing gas atmosphere, or by replacing positive ions constituting the oxide superconductor except for copper with ions of a low valence number. Accordingly, it is possible to substantially reduce the rate of decrease of the critical current density owing to an applied magnetic field when the magnetic field is applied parallel to the crystal c axis, and to allow a current conductor produced by using the oxide superconductor to have high critical current density.
摘要翻译： 具有空穴作为载体的氧化物超导体的空穴密度高于空穴密度以达到其超导临界温度Tc的最高值，并且可以使其高于通过处理氧化物以获得最高Tc值的最佳密度 在氧化气体气氛中具有热的超导体，或者通过用低价数离子替代构成除铜以外的氧化物超导体的正离子。 因此，当平行于晶体c轴施加磁场时，由于所施加的磁场，可以显着降低临界电流密度的降低率，并且允许通过使用氧化物超导体产生的电流导体具有 高临界电流密度。
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公开(公告)号：US5665662A
公开(公告)日：1997-09-09
申请号：US576408
申请日：1990-11-08
申请人： Oliver Eibl
发明人： Oliver Eibl
IPC分类号： C04B35/00 , C01G1/00 , C01G29/00 , C04B35/45 , H01B12/00 , H01B13/00 , H01L39/12 , H01L39/24 , C01F11/02
CPC分类号： C04B35/4525 , H01L39/126 , H01L39/2419 , Y10S505/782
摘要： A high-temperature superconductor material based on the Bi--Sr--Ca--Cu--O system has the nominal composition:(Bi.sub.1-u Pb.sub.u).sub.2 (Sr.sub.1-x-y Ca.sub.x Bi.sub.y).sub.4 Cu.sub.3 O.sub.10+d (d=delta)wherein 0.01
摘要翻译： PCT No.PCT / DE89 / 00154 Sec。 371日期1990年11月8日第 102（e）日期1990年11月8日PCT 1989年3月10日PCT公布。 出版物WO89 / 08929 日期：1989年9月21日基于Bi-Sr-Ca-Cu-O体系的高温超导材料的标称组成为：（Bi1-uPbu）2（Sr1-x-yCaxBiy）4Cu3O10 + d（d = 其中0.01
= 0。 高温超导材料的转变温度大于90°K. -
公开(公告)号：US5614472A
公开(公告)日：1997-03-25
申请号：US439781
申请日：1995-05-12
IPC分类号： C01B13/34 , C01G1/00 , C01G3/00 , C01G29/00 , C04B35/45 , H01B12/00 , H01B13/00 , H01L39/24 , B05D1/08 , C04B35/505 , H01L39/12
CPC分类号： H01L39/2445 , C01B13/34 , C01G29/006 , C01G3/006 , C04B35/4521 , C04B35/4525 , C01P2002/50 , C01P2004/03 , C01P2004/51 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C01P2006/40 , C01P2006/80 , C01P2006/82 , Y10S505/733 , Y10S505/737 , Y10S505/776 , Y10S505/78 , Y10S505/782 , Y10S505/807 , Y10S505/823
摘要： The invention relates to a spray pyrolyric process for the preparation of multi-element metal oxide powders useful as precursors of high temperature superconductor ceramics. Aerosols of aqueous solutions containing corresponding metal salts admixed in the required stoichiometric proportion are sprayed through an independently operated hydrogen/oxygen flame in such a way that a flame temperature of 800.degree.-1100.degree. C. is maintained to form said powders. Any contact of the aerosols and powders generated during the process with carbon or carbon-containing compounds or materials is strictly avoided.
摘要翻译： 本发明涉及用于制备可用作高温超导体陶瓷的前体的多元素金属氧化物粉末的喷雾热解方法。 将含有以所需化学计量比例混合的相应金属盐的水溶液的气溶胶通过独立操作的氢气/氧气火焰喷射，使得保持800℃-1100℃的火焰温度以形成所述粉末。 严格避免气溶胶与工艺过程中产生的含碳或含碳化合物或材料的任何接触。
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