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1. 发明授权

US06284979B1 Low resistance cabled conductors comprising superconducting ceramics 失效
标题翻译：低电阻电缆导体包括超导陶瓷
公开(公告)号：US06284979B1
公开(公告)日：2001-09-04
申请号：US08851719
申请日：1997-05-05
申请人： Alexis P. Malozemoff , Gregory L. Snitchler , William L. Barnes , Alexander Otto , Gilbert N. Riley, Jr. , Jeffrey M. Seuntjens
发明人： Alexis P. Malozemoff , Gregory L. Snitchler , William L. Barnes , Alexander Otto , Gilbert N. Riley, Jr. , Jeffrey M. Seuntjens
IPC分类号： H01B1210
CPC分类号： H01L39/143
摘要： A cabled conductor is provided for use in a cryogenically cooled circuit including refrigeration having a predetermined operating temperature and efficiency. The conductor includes multiple conductor strands cabled about the longitudinal axis of the conductor at a preselected cabling period, each strand including a composite of superconducting ceramic in intimate contact with conductive matrix material. Each filament has high performance regions in which the filament material is well-textured with its preferred direction aligned perpendicular to the widest longitudinal cross-section of the conductor alternating with poorly superconducting regions which are at least about half the diameter of a filament in length and in which the superconducting ceramic filament is strained by transposition in excess of its critical strain limit. In the poorly superconducting regions, the conductive matrix material provides an alternate current path. The ratio of the average length of the poorly superconducting regions to the preselected cabling period is less than about (&rgr;300e/&rgr;oe)&egr;E, where &rgr;oe is the resistivity of the composite at the operating temperature; &rgr;300e is the resistivity of the composite at 300 Kelvins; and &egr; is the predetermined efficiency of the refrigeration means at its operating temperature. In the preferred embodiment, this ratio is less than 1:4, and preferably less than 1:20.
摘要翻译：提供一种用于低温冷却回路中的电缆导体，包括具有预定工作温度和效率的制冷。导体包括在预选布线周期围绕导体的纵向轴线布置的多个导线，每个线包括与导电基体材料紧密接触的超导陶瓷的复合材料。每个灯丝具有高性能区域，其中长丝材料具有良好的织构，其优选的方向垂直于导体的最宽纵向横截面排列，与导体长度的至少约一半长度的不良超导区交替，其中超导陶瓷细丝通过转移超过其临界应变极限而变形。在较差的超导区域中，导电基体材料提供了交替的电流路径。不良超导区域的平均长度与预选布线周期的比值小于约（rho300e / rhooe）epsiE，其中r为复合材料在工作温度下的电阻率; rho300e是300 Kelvins的复合材料的电阻率; 而epsi是制冷装置在其工作温度下的预定效率。在优选实施方案中，该比率小于1:4，优选小于1:20。

2. 发明授权

US06194352B1 Multifilament composite BSCCO oxide superconductor 失效
标题翻译：多丝复合BSCCO氧化物超导体
公开(公告)号：US06194352B1
公开(公告)日：2001-02-27
申请号：US08553184
申请日：1995-11-07
申请人： Gilbert N. Riley, Jr. , Jeffrey M. Seuntjens , William L. Barnes , Gregory L. Snitchler , Alexander Otto
发明人： Gilbert N. Riley, Jr. , Jeffrey M. Seuntjens , William L. Barnes , Gregory L. Snitchler , Alexander Otto
IPC分类号： H01B1202
CPC分类号： H01L39/248 , H01F6/06 , H01F41/063 , H01F41/069 , Y10S505/74
摘要： A method for preparing an oxide superconductor cable includes transposing a plurality of oxide superconductor strands along a longitudinal axis so as to form a cable and exposing the cable to a two step heat treatment after cabling of the oxide strands, the heat treatment comprising, (a) heating the cable to and maintaining the cable at a first temperature sufficient to partially melt the article, such that a liquid phase co-exists with the desired oxide superconductor phase; and (b) cooling the cable to and maintaining the cable at a second temperature sufficient to substantially transform the liquid phase into the desired oxide superconductor. The oxide superconductor multistrand cable includes a plurality of oxide superconductor strands, each of the strands including an oxide superconductor having an irreversible melt characteristic, wherein the plurality of oxide strands are transposed about a longitudinal axis, such that each of the strands are substantially electrically and substantially mechanically isolated; and wherein the cable exhibits critical transport properties (Jc) of at least about 10,000 A/cm2 at 77K, self field.
摘要翻译：制备氧化物超导体电缆的方法包括沿着纵向轴线转置多个氧化物超导体股线，以形成电缆，并且在电缆穿过氧化物线束之后将电缆暴露于两步热处理，该热处理包括：（a 将电缆加热并将电缆保持在足以部分熔化制品的第一温度，使得液相与期望的氧化物超导体相共存; 和（b）将电缆冷却到并将电缆保持在足以基本上将液相转变成所需氧化物超导体的第二温度。氧化物超导体多股线缆包括多个氧化物超导体股线，每个股线包括具有不可逆熔融特性的氧化物超导体，其中多个氧化物股线围绕纵向轴线转置，使得每根股线基本上电气和基本上机械隔离; 并且其中所述电缆在77K处表现出至少约10,000A / cm 2的临界传输特性（Jc）。

3. 发明授权

US06828507B1 Enhanced high temperature coated superconductors joined at a cap layer 有权
标题翻译：在盖层上连接的增强型高温涂层超导体
公开(公告)号：US06828507B1
公开(公告)日：2004-12-07
申请号：US09617518
申请日：2000-07-14
申请人： Leslie G. Fritzemeier , Cornelis Leo Hans Thieme , Steven Fleshler , John D. Scudiere , Gregory L. Snitchler , Bruce B. Gamble , Robert E. Schwall , Dingan Yu , Alexander Otto , Elliott D. Thompson , Gilbert N. Riley, Jr.
发明人： Leslie G. Fritzemeier , Cornelis Leo Hans Thieme , Steven Fleshler , John D. Scudiere , Gregory L. Snitchler , Bruce B. Gamble , Robert E. Schwall , Dingan Yu , Alexander Otto , Elliott D. Thompson , Gilbert N. Riley, Jr.
IPC分类号： H01B1200
CPC分类号： H01L39/248 , C30B23/02 , C30B29/16 , H01L39/143 , H01L39/2425 , H01L39/2451 , H01L39/2461 , Y10S505/926
摘要： This invention relates to a practical superconducting conductor based upon biaxially textured high temperature superconducting coatings. In particular, methods for producing flexible and bend strain-resistant articles and articles produced in accordance therewith are described which provide improved current sharing, lower hysteretic losses under alternating current conditions, enhanced electrical and thermal stability and improved mechanical properties between otherwise isolated films in a coated high temperature superconducting (HTS) wire. Multilayered materials including operational material which is sensitive to bend strain can be constructed, in which the bend strain in the region in which such operational material is located is minimized. The invention also provides a means for splicing coated tape segments and for termination of coated tape stack ups or conductor elements. In one embodiment, a multi-layer high temperature superconductor is provided and includes first and second high temperature superconductor coated elements. Each element includes a substrate, at least one buffer deposited on the substrate, a high temperature superconductor layer, and a cap layer. The first and second high temperature superconductor coated elements are joined at the first and second cap layers.
摘要翻译：本发明涉及一种基于双轴织构的高温超导涂层的实用超导导体。特别地，描述了制造柔性和弯曲耐应变制品的方法和根据本发明生产的制品，其提供了改善的电流共享，在交流电流条件下的较低的滞后损耗，增强的电和热稳定性以及在其中隔离的膜中的改进的机械性能涂覆高温超导（HTS）线。可以构造包括对弯曲应变敏感的操作材料的多层材料，其中使得这种操作材料所在的区域中的弯曲应变最小化。本发明还提供了用于拼接涂覆的带段和用于终止涂覆的带堆叠或导体元件的装置。在一个实施例中，提供了多层高温超导体，并且包括第一和第二高温超导体涂覆元件。每个元件包括衬底，沉积在衬底上的至少一个缓冲器，高温超导体层和帽层。第一和第二高温超导体涂覆元件在第一和第二盖层处接合。

4. 发明授权

US06762673B1 Current limiting composite material 有权
标题翻译：限流复合材料
公开(公告)号：US06762673B1
公开(公告)日：2004-07-13
申请号：US09488742
申请日：2000-01-20
申请人： Alexander Otto , Ralph P. Mason , Craig J. Christopherson , Peter R. Roberts , Steven Fleshler , Gilbert N. Riley, Jr. , Swarn S. Kalsi , Gregory L. Snitchler , Robert C. Diehl , Dietrich Bonmann , Martin Lakner , Willi Paul , Harry Zueger
发明人： Alexander Otto , Ralph P. Mason , Craig J. Christopherson , Peter R. Roberts , Steven Fleshler , Gilbert N. Riley, Jr. , Swarn S. Kalsi , Gregory L. Snitchler , Robert C. Diehl , Dietrich Bonmann , Martin Lakner , Willi Paul , Harry Zueger
IPC分类号： H01C1014
CPC分类号： H01B12/16 , H01F2027/2819 , H01L39/16 , Y02E40/647 , Y10S505/881
摘要： An elongated current limiting composite material comprising one or more high-temperature superconductor filaments and a second electrically conductive member, which may include a sheath of high bulk resistivity surrounding the filament. The current limiter exhibits dissipation in the range of 0.05-0.5 V/cm at currents of 3-10 times the operating current, thereby minimizing fault currents and improving recovery capability.
摘要翻译：包括一个或多个高温超导体细丝和第二导电构件的细长限流复合材料，其可以包括围绕细丝的高体积电阻率的护套。电流限制器在工作电流的3-10倍的电流下表现出0.05-0.5 V / cm的范围内的耗散，从而最大限度地减少故障电流并提高恢复能力。

5. 发明授权

US06765151B2 Enhanced high temperature coated superconductors 有权
标题翻译：增强型高温涂层超导体
公开(公告)号：US06765151B2
公开(公告)日：2004-07-20
申请号：US10154566
申请日：2002-05-24
申请人： Leslie G. Fritzemeier , Cornelis Leo Hans Thieme , Steven Fleshler , John D. Scudiere , Gregory L. Snitchler , Bruce B. Gamble , Robert E. Schwall , Dingan Yu , Alexander Otto , Elliott D. Thompson , Gilbert N. Riley, Jr.
发明人： Leslie G. Fritzemeier , Cornelis Leo Hans Thieme , Steven Fleshler , John D. Scudiere , Gregory L. Snitchler , Bruce B. Gamble , Robert E. Schwall , Dingan Yu , Alexander Otto , Elliott D. Thompson , Gilbert N. Riley, Jr.
IPC分类号： H01B1200
CPC分类号： H01L39/248 , C30B23/02 , C30B29/16 , H01L39/143 , H01L39/2425 , H01L39/2451 , H01L39/2461 , Y10S505/926
摘要： This invention relates to a practical superconducting conductor based upon biaxially textured high temperature superconducting coatings. In particular, methods for producing flexible and bend strain-resistant articles and articles produced in accordance therewith are described which provide improved current sharing, lower hysteretic losses under alternating current conditions, enhanced electrical and thermal stability and improved mechanical properties between otherwise isolated films in a coated high temperature superconducting (HTS) wire. Multilayered materials including operational material which is sensitive to bend strain can be constructed, in which the bend strain in the region in which such operational material is located is minimized. The invention also provides a means for splicing coated tape segments and for termination of coated tape stack ups or conductor elements. In one embodiment, a multi-layer high temperature superconductor is provided and includes first and second high temperature superconductor coated elements. Each element includes a substrate, at least one buffer deposited on the substrate, a high temperature superconductor layer, and a cap layer. The first and second high temperature superconductor coated elements are joined at the first and second cap layers.
摘要翻译：本发明涉及一种基于双轴织构的高温超导涂层的实用超导导体。特别地，描述了用于生产柔性和弯曲耐应变制品的方法以及根据本发明生产的制品，其提供了改进的电流共享，在交流电流条件下的较低的滞后损耗，增强的电和热稳定性以及在其中隔离的膜中的改善的机械性能涂覆高温超导（HTS）线。可以构造包括对弯曲应变敏感的操作材料的多层材料，其中使得这种操作材料所在的区域中的弯曲应变最小化。本发明还提供了用于拼接涂覆的带段和用于终止涂覆的带堆叠或导体元件的装置。在一个实施例中，提供了多层高温超导体，并且包括第一和第二高温超导体涂覆元件。每个元件包括衬底，沉积在衬底上的至少一个缓冲器，高温超导体层和帽层。第一和第二高温超导体涂覆元件在第一和第二盖层处接合。

6. 发明授权

US06694600B2 Simplified deformation-sintering process for oxide superconducting articles 失效
标题翻译：氧化物超导制品的简化变形烧结工艺
公开(公告)号：US06694600B2
公开(公告)日：2004-02-24
申请号：US09990953
申请日：2001-11-21
申请人： Qi Li , Eric R. Podtburg , Patrick John Walsh , William L. Carter , Gilbert N. Riley, Jr. , Martin W. Rupich , Elliott Thompson , Alexander Otto
发明人： Qi Li , Eric R. Podtburg , Patrick John Walsh , William L. Carter , Gilbert N. Riley, Jr. , Martin W. Rupich , Elliott Thompson , Alexander Otto
IPC分类号： H01L3924
CPC分类号： C22C29/12 , B22F3/1216 , B22F3/18 , C04B35/4521 , C22C5/00 , H01L39/248 , Y10S505/739 , Y10S505/742 , Y10S505/887 , Y10T29/49014
摘要： A method is described to prepare a highly textured oxide superconductor article in a single deformation-sinter process. A precursor article including a plurality of filaments comprising a precursor oxide having a dominant amount of a tetragonal BSCCO 2212 phase and a constraining member substantially surrounding each of the filaments is provided. Each of the filaments extends along the length of the article. The oxide article is subjected to a heat treatment at an oxygen partial pressure and temperature selected to convert a tetragonal BSCCO 2212 oxide into an orthorhombic BSCCO 2212 oxide and, thereafter, roll worked in a high reduction draft in a range of about 40% to 95% in thickness so that the filaments have a constraining dimension is substantially equivalent to a longest dimension of the oxide superconductor grains. The rolled article is sintered to obtain a BSCCO 2223 oxide superconductor.
摘要翻译：描述了在单个变形烧结过程中制备高度纹理的氧化物超导体制品的方法。提供了包括多个长丝的前体制品，其包含具有显着数量的四边形BSCCO 2212相的前体氧化物和基本上围绕每个长丝的约束构件。每个细丝沿着制品的长度延伸。将氧化物制品在选择的氧分压和温度下进行热处理，以将四方晶BSCCO 2212氧化物转化成斜方晶BSCCO 2212氧化物，然后在大约40％至95的范围内以高的还原通量进行辊加工使得长丝的约束尺寸基本上等于氧化物超导体晶粒的最长尺寸。将轧制制品烧结以获得BSCCO 2223氧化物超导体。

7. 发明授权

US5994275A Processing of oxide superconductors 失效
标题翻译：氧化物超导体的加工
公开(公告)号：US5994275A
公开(公告)日：1999-11-30
申请号：US779808
申请日：1997-01-08
申请人： Alexander Otto , Gilbert N. Riley, Jr. , William L. Carter
发明人： Alexander Otto , Gilbert N. Riley, Jr. , William L. Carter
IPC分类号： C04B35/45 , C01G1/00 , C01G3/00 , C01G29/00 , H01B12/02 , H01B13/00 , H01L39/24 , H01L39/12 , H01B12/00
CPC分类号： H01L39/2464 , Y10S505/742 , Y10S505/782 , Y10S505/785
摘要： An oxide superconductor article comprises silver and an oxide superconductor having the formula Bi.sub.2-y Pb.sub.y Sr.sub.2 Ca.sub.2 O.sub.10+x, where 0.ltoreq.x.ltoreq.1.5, and 0.3.ltoreq.y.ltoreq.0.4, the oxide superconductor characterized by a critical current transition temperature of greater than 111.0 K as defined by zero resistance by a four point linear probe method with zero resistance corresponding to a resistivity of less that 10.sup.-8 .OMEGA.-cm.
摘要翻译：氧化物超导体制品包含银和氧化物超导体，其具有式Bi2-yPbS2Ca2O10 + x，其中0≤x≤1.5且0.3≤y≤0.4，氧化物超导体的特征在于临界电流转变温度大于111.0K，由零电阻定义，通过四点线性探针法，零电阻对应于电阻率小于10-8 OMEGA-cm。

8. 发明授权

US06311386B1 Processing of (Bi,Pb)SCCO superconductor in wires and tapes 失效
标题翻译：（Bi，Pb）SCCO超导体在电线和磁带中的处理
公开(公告)号：US06311386B1
公开(公告)日：2001-11-06
申请号：US09358245
申请日：1999-07-21
申请人： Qi Li , Eric R. Podtburg , Patrick John Walsh , William L. Carter , Gilbert N. Riley, Jr. , Martin W. Rupich , Elliott Thompson , Alexander Otto
发明人： Qi Li , Eric R. Podtburg , Patrick John Walsh , William L. Carter , Gilbert N. Riley, Jr. , Martin W. Rupich , Elliott Thompson , Alexander Otto
IPC分类号： H01L3929
CPC分类号： C04B35/4521 , C04B35/4525 , C04B35/65 , H01L39/2419 , H01L39/248 , Y10S505/739 , Y10S505/74 , Y10S505/742 , Y10T29/49014
摘要： A novel process of the production and processing of high quality, high Tc (Bi,Pb)SCCO superconductors starts with fabrication of a precursor article including selected intermediate phases with desired chemical and structural properties. The precursor fabrication includes introducing the reacted mixture having a dominant amount of the tetragonal BSCCO phase into a metal sheath, and sealing the reacted mixture within said sheath, heating the mixture at a second selected processing temperature in an inert atmosphere with a second selected oxygen partial pressure for a second selected time period, the second processing temperature and the second oxygen partial pressure being cooperatively selected to form a dominant amount of an orthorhombic BSCCO phase in the reacted mixture. The sealed sheath is deformed to form an elongated precursor article of a desired texture; and thereafter heated at a third selected processing temperature in an inert atmosphere with a third selected oxygen partial pressure for a third selected time period. The third processing temperature and third oxygen partial pressure are cooperatively selected to convert at least a portion of the orthorhombic BSCCO phase to the final superconducting BSCCO material.
摘要翻译：高品质，高Tc（Bi，Pb）SCCO超导体的生产和加工的新工艺首先制造包含所需化学和结构性质的选定中间相的前体制品。前体制备包括将具有显着量的四边形BSCCO相的反应混合物引入金属护套中，并将反应的混合物密封在所述护套内，在第二选择的加工温度下在惰性气氛中加热第二选择的氧部分第二选择时间段的压力，第二加工温度和第二氧分压协同选择以形成反应混合物中正交BSCCO相的显着量。密封的鞘被变形以形成具有所需纹理的细长的前体制品; 然后在具有第三选择的氧分压的惰性气氛中在第三选择的处理温度下加热第三选定时间段。协调选择第三加工温度和第三氧分压以将正交BSCCO相的至少一部分转化为最终超导BSCCO材料。

9. 发明授权

US07018954B2 Processing of magnesium-boride superconductors 失效
标题翻译：镁硼化物超导体的加工
公开(公告)号：US07018954B2
公开(公告)日：2006-03-28
申请号：US10094076
申请日：2002-03-08
申请人： Cornelis L. Thieme , Martin W. Rupich , Alexander Otto , Gilbert N. Riley, Jr.
发明人： Cornelis L. Thieme , Martin W. Rupich , Alexander Otto , Gilbert N. Riley, Jr.
IPC分类号： H01B12/00 , C04B35/58
CPC分类号： H01L39/141 , H01L39/2487 , Y10T29/49014
摘要： Processes for the fabrication of MgB2 powder and wires are provided. Powders are produced by mechanically alloying magnesium- and boron-containing precursors under controlled conditions to avoid secondary phase and impurity formation. Powders are also prepared by vapor phase reaction of volatile magnesium- and boron-containing precursors. Wires, tapes, films and coatings are provided.
摘要翻译：提供了制造MgB 2粉末和电线的方法。在控制条件下通过机械合金化含镁和硼的前体来制备粉末，以避免二次相和杂质的形成。粉末也是通过挥发性镁和硼的前体的气相反应制备的。提供电线，胶带，薄膜和涂层。

10. 发明授权

US06436876B1 Processing of oxide superconductors 失效
标题翻译：氧化物超导体的加工
公开(公告)号：US06436876B1
公开(公告)日：2002-08-20
申请号：US09861248
申请日：2001-05-18
申请人： Alexander Otto , Gilbert N. Riley, Jr. , William L. Carter
发明人： Alexander Otto , Gilbert N. Riley, Jr. , William L. Carter
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)≧3.5×1010 exp(−32,000/T+273) and an upper bound defined by the equation, PO2(upper)≦1.1×1012 exp(−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 PO2（下）> = 3.5×10 10 exp（-32,000 / T + 273）和由上式定义的上限的PO2（上）<= 1.1×1012 exp（-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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