公开(公告)号：US07752734B2

公开(公告)日：2010-07-13

申请号：US11594563

申请日：2006-11-08

申请人： Leszek Motowidlo

发明人： Leszek Motowidlo

IPC分类号： H01B12/10

CPC分类号： H01L39/2406 ,  H01L39/2403 ,  H01L39/2409 ,  H01L39/248 ,  Y10T29/49014

摘要： A method for forming improved superconducting composites having improved Jc values by assembling octagonal or curved octagonal elements which when assembled allow for formation of uniformly continuously spaced voids. The voids are then filled with a metal, alloy, intermetallic substance, or ceramic oxide. The assembly of the octagonal elements and the filling of the voids is performed in a metal can. Accordingly, the flexibility in design of the present invention allows control of the performance of the superconductor and is cost effective.

摘要翻译： 通过组装八边形或弯曲的八边形元件形成改进的Jc值的改进的超导复合材料的方法，其在组装时允许形成均匀连续间隔的空隙。 然后用金属，合金，金属间化合物或陶瓷氧化物填充空隙。 八角形元件的组装和空隙的填充在金属罐中进行。 因此，本发明的设计灵活性允许控制超导体的性能并且是成本有效的。

公开(公告)号：US20100031493A1

公开(公告)日：2010-02-11

申请号：US12537301

申请日：2009-08-07

申请人： Leszek Motowidlo

发明人： Leszek Motowidlo

IPC分类号： H01L39/24

CPC分类号： H01B12/10 ,  H01L39/2409 ,  Y10T29/49014

摘要： A method for forming Nb3Sn superconducting wire is provided. The method employs a powder-in-tube process using a high-tin intermetallic compound, such as MnSn2, for producing the Nb3Sn. The use of a high-tin intermetallic compound enables the process to perform hot extrusion without melting the high-tin intermetallic compound. Alternatively, the method may entail drawing the wire without hot extrusion.

摘要翻译： 提供了一种用于形成Nb3Sn超导线的方法。 该方法采用使用高锡金属间化合物（如MnSn 2）的粉末管内工艺来制造Nb 3 Sn。 使用高锡金属间化合物使得该方法能够进行热挤压而不熔化高锡金属间化合物。 或者，该方法可能需要在没有热挤压的情况下拉丝。

公开(公告)号：US08832926B2

公开(公告)日：2014-09-16

申请号：US12537301

申请日：2009-08-07

申请人： Leszek Motowidlo

发明人： Leszek Motowidlo

IPC分类号： H01B12/10 ,  H01L39/24

CPC分类号： H01B12/10 ,  H01L39/2409 ,  Y10T29/49014

摘要： A method for forming Nb3Sn superconducting wire is provided. The method employs a powder-in-tube process using a high-tin intermetallic compound, such as MnSn2, for producing the Nb3Sn. The use of a high-tin intermetallic compound enables the process to perform hot extrusion without melting the high-tin intermetallic compound. Alternatively, the method may entail drawing the wire without hot extrusion.

摘要翻译： 提供了一种用于形成Nb3Sn超导线的方法。 该方法采用使用高锡金属间化合物（如MnSn 2）的粉末管内工艺来制造Nb 3 Sn。 使用高锡金属间化合物使得该方法能够进行热挤压而不熔化高锡金属间化合物。 或者，该方法可能需要在没有热挤压的情况下拉丝。

公开(公告)号：US5434129A

公开(公告)日：1995-07-18

申请号：US126171

申请日：1993-09-23

申请人： Leszek Motowidlo ,  Pradeep Haldar

发明人： Leszek Motowidlo ,  Pradeep Haldar

IPC分类号： H01F6/06 ,  H01L39/24

CPC分类号： H01F6/06 ,  Y10S505/704 ,  Y10T29/49014

摘要： A method of producing a high temperature long length coil of superconductor wire is disclosed. The method utilizes the "powder-in-tube" method or a similar method to form a wire. The wire is then shaped into rectangular form and wound around a mandrell. Rings, having a gap exposing the superconductor inside the silver or silver alloy tube are formed by cutting the wound wire and the rings are pressed to their final thickness. Each ring is then coated with an insulator and filed on both an outer side of one end of the gap and on an inner side of the other end of the gap. The rings are then positioned adjacent one another such that the gaps are staggered. They are placed in a manner in which the exposed superconductor on an outer side of one ring is in contact with the exposed superconductor on the inner side of an adjacent ring. The rings are then clamped together and heated to merge the superconducting material by diffusion. A long length coil is thus formed from the rings that are clamped.

摘要翻译： 公开了一种制造超导体线的高温长线圈的方法。 该方法利用“管内粉末”方法或类似方法形成电线。 然后将导线成形为矩形并缠绕在心轴上。 在银或银合金管内具有暴露超导体的间隙的环通过切割缠绕的线而形成，并且将环压到其最终厚度。 然后每个环涂覆有绝缘体并且在间隙的一端的外侧和间隙的另一端的内侧上放置。 然后将环彼此相邻地定位，使得间隙交错。 它们以一个环的外侧上暴露的超导体与相邻环的内侧上暴露的超导体接触的方式放置。 然后将环夹在一起并加热以通过扩散合并超导材料。 因此，由夹紧的环形成长长度的线圈。

公开(公告)号：US20100031494A1

公开(公告)日：2010-02-11

申请号：US12537303

申请日：2009-08-07

申请人： Leszek Motowidlo

发明人： Leszek Motowidlo

IPC分类号： H01L39/24

CPC分类号： H01L39/2409 ,  H01L39/2403 ,  Y10T29/49014

摘要： A powder and rod process for forming Nb3Sn or V3Ga superconducting wire is provided. The process includes hot extrusion or cold drawing of an assembly comprising an octagonal or hexagonal configuration of copper-clad rods comprising niobium, vanadium, a niobium alloy, or a vanadium alloy and an intermetallic powder compound, such as MnSn2, that is situated in a central hole within the octagonal or hexagonal configuration of rods.

摘要翻译： 提供一种用于形成Nb3Sn或V3Ga超导线的粉末和棒状工艺。 该方法包括热挤压或冷拉伸，其包括八角形或六边形构造的铜包覆棒，其包括铌，钒，铌合金或钒合金以及金属间化合物粉末化合物，例如MnSn 2，其位于 杆的八角形或六角形构造中的中心孔。

公开(公告)号：US5550103A

公开(公告)日：1996-08-27

申请号：US108929

申请日：1993-08-18

申请人： Leszek Motowidlo ,  Pradeep Haldar

发明人： Leszek Motowidlo ,  Pradeep Haldar

IPC分类号： H01L39/24 ,  H01B12/04 ,  H01B13/00

CPC分类号： H01L39/248 ,  Y10S505/704 ,  Y10S505/705

摘要： A method of producing a high temperature long length coil of superconductor wire or tape having improved critical current densities by utilizing an in-line pressing operation to heal the microcracks in the tape or wire which were introduced in rolling and coiling operations. The material can be Bismuth-2223, Bismuth 2212, Thallium-1234 or any other high temperature superconducting material. In the case of the Bismuth-2223, an improved "powder-in-tube" processing operation is provided to utilize excess bismuth, calcium, and copper in the initial composition material, and forming a partially developed Bi-2223 phase in the precursor powder introduced into the silver tubes. The final product has a 90-100% Bi-2223 phase with fine dispersions of secondary phases, to provide improved flux pinning thereby improving the critical current density of the material.

摘要翻译： 一种通过在线压制操作来制造具有改进的临界电流密度的超导线或带的高温长度线圈的方法，该方法是在卷绕和卷绕操作中引入的带或线中的微裂纹。 该材料可以是Bismuth-2223，Bismuth 2212，Thallium-1234或任何其他高温超导材料。 在Bismuth-2223的情况下，提供了改进的“管内管”处理操作，以在初始组合物材料中利用过量的铋，钙和铜，并在前体粉末中形成部分显影的Bi-2223相 引入银管。 最终产品具有90-100％的Bi-2223相，其具有次级相的细分散，以提供改进的磁通钉扎，从而提高材料的临界电流密度。

公开(公告)号：US09385295B2

公开(公告)日：2016-07-05

申请号：US12537303

申请日：2009-08-07

申请人： Leszek Motowidlo

发明人： Leszek Motowidlo

IPC分类号： H01L39/00 ,  H01L39/24

CPC分类号： H01L39/2409 ,  H01L39/2403 ,  Y10T29/49014

摘要： A powder and rod process for forming Nb3Sn or V3Ga superconducting wire is provided. The process includes hot extrusion or cold drawing of an assembly comprising an octagonal or hexagonal configuration of copper-clad rods comprising niobium, vanadium, a niobium alloy, or a vanadium alloy and an intermetallic powder compound, such as MnSn2, that is situated in a central hole within the octagonal or hexagonal configuration of rods.

摘要翻译： 提供一种用于形成Nb3Sn或V3Ga超导线的粉末和棒状工艺。 该方法包括热挤压或冷拉伸，其包括八角形或六边形构造的铜包覆棒，其包括铌，钒，铌合金或钒合金以及金属间化合物粉末化合物，例如MnSn 2，其位于 杆的八角形或六角形构造中的中心孔。

公开(公告)号：US20080188372A1

公开(公告)日：2008-08-07

申请号：US11594563

申请日：2006-11-08

申请人： Leszek Motowidlo

发明人： Leszek Motowidlo

IPC分类号： H01B12/10 ,  H01L39/24

CPC分类号： H01L39/2406 ,  H01L39/2403 ,  H01L39/2409 ,  H01L39/248 ,  Y10T29/49014

摘要： A method for forming improved superconducting composites having improved Jc values by assembling octagonal or curved octagonal elements which when assembled allow for formation of uniformly continuously spaced voids. The voids are then filled with a metal, alloy, intermetallic substance, or ceramic oxide. The assembly of the octagonal elements and the filling of the voids is performed in a metal can. Accordingly, the flexibility in design of the present invention allows control of the performance of the superconductor and is cost effective.

摘要翻译： 通过组装八边形或弯曲的八边形元件形成改进的Jc值的改进的超导复合材料的方法，其在组装时允许形成均匀连续间隔的空隙。 然后用金属，合金，金属间化合物或陶瓷氧化物填充空隙。 八角形元件的组装和空隙的填充在金属罐中进行。 因此，本发明的设计灵活性允许控制超导体的性能并且是成本有效的。

公开(公告)号：US06240619B1

公开(公告)日：2001-06-05

申请号：US08662515

申请日：1996-06-13

申请人： Uthamalingam Balachandran ,  Roger Poeppel ,  Pradeep Haldar ,  Leszek Motowidlo

发明人： Uthamalingam Balachandran ,  Roger Poeppel ,  Pradeep Haldar ,  Leszek Motowidlo

IPC分类号： H01L3924

CPC分类号： H01L39/248 ,  Y10T29/49014

摘要： A method of preparing wires or tapes including Bi-2223 superconductor material by providing oxide and carbonate sources of Bi, Sr, Ca, Cu and Pb, milling the material for a time not to exceed about 30 minutes but preferably not greater than 20 minutes to produce a homogeneous mixture. Then heat treating by calcining the milled mixture at a temperature of at least about 830° C. for a time not less than about 12 hours, followed by at least one additional milling for a time not to exceed about 20 minutes and one additional heat treatment, to produce an oxide powder having an average diameter in the 4 to 5 micron range. Then a silver or silver alloy tube is filled with the oxide powder, and shape formed into a rectangular tape. Then alternately thermally treating and mechanically working the tube filled with oxide powder by heating the filled tube to an elevated temperature of about 835° C. to 840° C. and reducing the diameter of the tube, repeating the thermal and mechanical treatment. The filled tube is held at the elevated temperature for a total time in the range of from about 48 hours to about 350 hours to provide Pb0.4, Bi1.8 Sr2.0 Ca2.2 Cu3 Ox where x is between 10 and 11.

摘要翻译： 通过提供Bi，Sr，Ca，Cu和Pb的氧化物和碳酸盐源制备Bi-2223超导体材料的线或带的制备方法，将材料研磨不超过约30分钟但优选不大于20分钟， 产生均匀的混合物。 然后通过在至少约830℃的温度下煅烧研磨的混合物进行热处理不少于约12小时的时间，然后至少另外研磨一次不超过约20分钟的时间，并进行一次额外的热处理 ，以产生平均直径在4至5微米范围内的氧化物粉末。 然后用银或银合金管填充氧化物粉末，并形成为矩形胶带。 然后通过将填充的管加热至约835℃至840℃的升高温度并且减小管的直径，重复热和机械处理，交替地热处理和机械加工填充有氧化物粉末的管。 将填充的管在高温下保持约48小时至约350小时的总时间，以提供x为10和11之间的Pb0.4，Bi1.8 Sr2.0 Ca2.2 Cu3 Ox。