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21 条记录 (耗时 0.02 秒)

    Method for joining parts of ceramic high-temperature superconductor material
    1.
    发明授权
    Method for joining parts of ceramic high-temperature superconductor material 失效
    陶瓷高温超导体材料接合方法

    公开(公告)号：US5244876A

    公开(公告)日：1993-09-14

    申请号：US966589

    申请日：1992-10-26

    申请人： Eberhard Preisler ,  Joachim Bock ,  Johannes Holzem ,  Werner Horst

    发明人： Eberhard Preisler ,  Joachim Bock ,  Johannes Holzem ,  Werner Horst

    IPC分类号： C04B35/45 ,  C04B37/00 ,  H01L39/02

    CPC分类号： C04B35/4525 ,  C04B37/005 ,  H01L39/02 ,  C04B2237/06 ,  C04B2237/34 ,  C04B2237/78 ,  C04B2237/80 ,  Y10S505/739 ,  Y10S505/782

    摘要： Method for joining parts of ceramic high-temperature superconductor material of the composition Bi.sub.(2+a-b) (Sr.sub.1-c) Ca.sub.c) .sub.(3-a) Pb.sub.b Cu.sub.(2+d) O.sub.x, where a is 0 to 0.3, b is 0 to 0.5, c is 0.1 to 0.9 and d is 0 to 2 and x has a value depending on the state of oxidation of the metals present, the end faces of the parts located at a gap spacing apart from one another are heated by means of a fuel gas/oxygen flame to temperatures from 750.degree. to 875.degree. C. Simultaneously, a rod of the same material above the spacing gap is heated until the melt thereof drips off into the gap between the end faces of the two parts, completely filling the gap. At least the joint region between the two parts is then heat-treated for 7 to 100 hours at temperatures between 780.degree. and 850.degree. C.

    摘要翻译： 组合物Bi（2 + ab）（Sr1-c）Cac）（3-a）PbbCu（2 + d）Ox的陶瓷高温超导体材料部分的方法，其中a为0至0.3，b为0 至0.5，c为0.1至0.9，d为0至2，x具有取决于存在的金属的氧化状态的值，位于间隔间隔的部分的端面通过 燃料气体/氧气火焰至750℃至875℃的温度。同时，将间隔间隔上方的相同材料的棒加热直到其熔体滴落到两部分的端面之间的间隙中，完全填充 差距。 至少两部分之间的接合区域在780〜850℃的温度下进行7〜100小时的热处理。

    Process for producing tubular molded parts of high temperature superconductor material
    2.
    发明授权
    Process for producing tubular molded parts of high temperature superconductor material 失效
    生产高温超导体材料的管状模制件的工艺

    公开(公告)号：US5371068A

    公开(公告)日：1994-12-06

    申请号：US47609

    申请日：1993-04-14

    申请人： Eberhard Preisler ,  Joachim Bock ,  Johannes Holzem ,  Friedrich-Wilhelm Dorn

    发明人： Eberhard Preisler ,  Joachim Bock ,  Johannes Holzem ,  Friedrich-Wilhelm Dorn

    IPC分类号： C01G1/00 ,  B22D13/02 ,  B28B21/30 ,  C01G29/00 ,  C04B35/00 ,  C04B35/45 ,  C04B35/653 ,  C04B41/80 ,  H01L39/24 ,  H01L39/12

    CPC分类号： C04B35/4521 ,  B22D13/02 ,  B28B21/30 ,  C04B35/653 ,  H01L39/2419

    摘要： To produce tubular molded parts made of high-temperature superconductor oxide material based on bismuth, calcium, strontium and copper, a homogeneous melt of the oxide with a specified stoichiometry is allowed to run at temperatures of 900.degree. to 1100.degree. C. into a casting zone rotating about its horizontal axis. The solidified molded part is removed from the casting zone and it is annealed for 4 to 150 hours at 700.degree. to 900.degree. C. in an oxygen-containing atmosphere. A plant for producing tubular molded parts includes a rotatably arranged mold (4, 9) which is provided at least at one end face with a front plate 6 which reduces its free cross section, a runner 7 extending into the interior of the mold (4, 9) and a crucible 8 arranged above the runner 7 which is capable of feeding the runner 7 with melt (cf. FIG. 2 A).

    摘要翻译： 为了生产由基于铋，钙，锶和铜的高温超导体氧化物材料制成的管状模制部件，使具有特定化学计量的氧化物的均匀熔体在900至1100℃的温度下进入铸造 区域围绕其水平轴线旋转。 将凝固的模制件从铸造区域中取出，并在含氧气氛中在700-900℃退火4至150小时。 用于生产管状模制件的设备包括可旋转地布置的模具（4,9），其至少在一个端面处设置有前板6，其减小其自由横截面;延伸到模具（4）内部的流道7 ，9）和布置在流道7上方的坩埚8，坩埚8能够将流道7熔化（参见图2A）。

    Process for producing a high-temperature superconductor and also shaped bodies composed thereof
    6.
    发明授权
    Process for producing a high-temperature superconductor and also shaped bodies composed thereof 失效
    制造高温超导体的方法以及由其构成的成型体

    公开(公告)号：US5409888A

    公开(公告)日：1995-04-25

    申请号：US179879

    申请日：1994-01-11

    申请人： Joachim Bock ,  Eberhard Preisler

    发明人： Joachim Bock ,  Eberhard Preisler

    IPC分类号： C04B35/00 ,  C01G1/00 ,  C04B35/45 ,  C04B35/653 ,  H01B12/00 ,  H01L39/24 ,  C01G29/00

    CPC分类号： H01L39/2419 ,  C04B35/4521 ,  C04B35/653 ,  Y10S505/739 ,  Y10S505/782

    摘要： To produce a high-temperature superconductor of the composition Bi.sub.2 (Sr,Ca).sub.3 Cu.sub.2 O.sub.8+x having a strontium to calcium ratio of 5:1 to 2:1 and a value of x between 0 and 2, the oxides and/or carbonates of bismuth, strontium, calcium and copper are vigorously mixed in a stoichiometric ratio. The mixture is heated at a temperature of 870.degree. to 1100.degree. C. until a homogeneous melt is obtained. The melt is poured into mold and allowed to solidify in them. The cast bodies removed from the molds are annealed for 6 to 30 hours at 780.degree. to 850.degree. C. Finally, the annealed cast bodies are treated for at least 6 hours at temperatures of 600.degree. to 820.degree. C. in an oxygen atmosphere. The cast bodies can be converted into shaped bodies of the desired sizes by mechanical processes before they are annealed. The shape and size of the shaped bodies may also be determined by the shape and dimensioning of the mold used in producing the cast bodies.

    摘要翻译： 为了制备锶与钙的比例为5:1-2:1的组成Bi2（Sr，Ca）3Cu2O8 + x的高温超导体，x值在0和2之间，氧化物和/或碳酸盐 铋，锶，钙和铜以化学计量比剧烈混合。 将混合物在870℃至1100℃的温度下加热直到获得均匀的熔体。 将熔体倒入模具中并使其在其中固化。 从模具中取出的铸体在780〜850℃退火6〜30小时。最后，将退火后的铸体在氧气氛中600〜820℃的温度下处理6小时以上。 在退火之前，铸造体可以通过机械工艺转化成所需尺寸的成型体。 成型体的形状和尺寸也可以通过用于制造铸体的模具的形状和尺寸确定。

    Process for removing a copper mold from a molded body
    7.
    发明授权
    Process for removing a copper mold from a molded body 失效
    从成形体中除去铜模的工序

    公开(公告)号：US5362712A

    公开(公告)日：1994-11-08

    申请号：US81855

    申请日：1993-06-23

    申请人： Eberhard Preisler ,  Joachim Bock

    发明人： Eberhard Preisler ,  Joachim Bock

    IPC分类号： C01G1/00 ,  C01G29/00 ,  C04B35/45 ,  C04B35/653 ,  C04B41/91 ,  C23F1/18 ,  H01L39/24 ,  H01L39/12 ,  C23F1/00

    CPC分类号： C23F1/18 ,  C04B35/45 ,  C04B35/653 ,  H01L39/2419

    摘要： In the process for producing molded bodies from precursors of oxidic high-temperature superconductors a copper mold of the desired shape which encloses a solidified bismuth strontium calcium cuprate melt is treated with a solution of a soluble compound containing sulfate anions, an aqueous mineral acid and an oxidizing agent until the copper mold is dissolved. A protective layer of at least one of strontium sulfate or calcium sulfate is formed on the solidified melt.

    摘要翻译： 在从氧化高温超导体的前体制备成型体的方法中，将含有硫酸铋钙铜酸盐熔体的所需形状的铜模具用含硫酸根阴离子，无机酸水溶液和 氧化剂直到铜模溶解。 在固化的熔体上形成硫酸锶或硫酸钙中的至少一种的保护层。

    High-temperature superconductor comprising barium sulfate, strontium sulfate or mixtures thereof and a process for its preparation
    10.
    发明授权
    High-temperature superconductor comprising barium sulfate, strontium sulfate or mixtures thereof and a process for its preparation 失效
    包含硫酸钡，硫酸锶或其混合物的高温超导体及其制备方法

    公开(公告)号：US5294601A

    公开(公告)日：1994-03-15

    申请号：US911466

    申请日：1992-07-10

    申请人： Joachim Bock ,  Eberhard Preisler

    发明人： Joachim Bock ,  Eberhard Preisler

    IPC分类号： C01G1/00 ,  C01G29/00 ,  C04B35/00 ,  C04B35/45 ,  C04B35/653 ,  H01B12/00 ,  H01B13/00 ,  H01L39/24 ,  C01F11/02 ,  C01G3/02 ,  H01L39/12

    CPC分类号： H01L39/2419 ,  C04B35/4521 ,  C04B35/4525 ,  Y10S505/739 ,  Y10S505/782 ,  Y10S505/785

    摘要： The invention relates to a high-temperature superconductor composed of the oxides of bismuth, strontium, calcium and copper and, optionally, of lead, and having the composition Bi.sub.2-a+b+c Pb.sub.a (Sr, Ca).sub.3-b-c Cu.sub.2+d O.sub.x, where a=0 to 0.7; b+c=0 to 0.5; d=-0.1 to 0.1 and x=7 to 10 and a Sr:Ca ratio of 2.8:1 to 1:2.8 as well as of strontium and/or barium sulfates. Said superconductor can be prepared by intimately mixing the oxides of bismuth, strontium, calcium and copper and optionally of lead with strontium and/or barium sulfates, melting the mixture by heating to temperatures of 870 to 1300.degree. C., higher temperatures being required for higher strontium and/or barium sulfate contents, pouring the melt into molds and allowing it to solidify slowly therein and subjecting the moldings removed from the molds to a heat treatment at temperatures of 700 to 900.degree. C. in an oxygen-containing atmosphere.

    摘要翻译： 本发明涉及由铋，锶，钙和铜的氧化物和任选的铅组成的具有Bi 2-a + b + c Pba（Sr，Ca）3-bc Cu 2+的组成的高温超导体， d Ox，其中a = 0至0.7; b + c = 0〜0.5; d = -0.1至0.1和x = 7至10，Sr：Ca比为2.8:1至1:2.8，以及锶和/或硫酸钡。 所述超导体可以通过将铋，锶，钙和铜的氧化物和任选的铅与锶和/或硫酸钡紧密混合来制备，通过加热至870至1300℃的温度将该混合物熔化，需要较高的温度 较高的锶和/或硫酸钡含量，将熔体注入模具中并使其在其中缓慢固化，并使在模具中除去的模制品在含氧气氛中在700-900℃的温度下进行热处理。