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    • 1. 发明授权
    • Method of forming superconducting composite article
    • 形成超导复合制品的方法
    • US06613270B1
    • 2003-09-02
    • US09583304
    • 2000-05-30
    • Qi LiGilbert N. Riley, Jr.Lawrence J. MasurEric R. PodtburgRonald D. ParellaMartin W. RupichDonald R. ParkerWilliam L. CarterWilliam J. RosatiMark D. Teplitsky
    • Qi LiGilbert N. Riley, Jr.Lawrence J. MasurEric R. PodtburgRonald D. ParellaMartin W. RupichDonald R. ParkerWilliam L. CarterWilliam J. RosatiMark D. Teplitsky
    • H01L3900
    • H01L39/248Y10T29/49014
    • A novel process of the production and processing of high quality, high Tc BSCCO or (Bi,Pb)SCCO superconductors starts with fabrication of a forming a bundle including a plurality of billets, each billet containing at least one filament comprising a dominant amount of an tetragonal BSCCO phase with selected intermediate phases, and substantially surrounded by a constraining metal. The bundle is thermomechanically consolidated to form a multifilamentary precursor article by applying pressure and heat to the bundle under conditions cooperatively selected to cause interdiffusion of said constraining metal at the interfaces between said metal and said filaments and substantially complete elimination of voids in said bundle, and the consolidation step is completed before any high strain longitudinal deformation is performed on the bundle. The precursor article is then heated 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, the second time period and the second oxygen partial pressure being cooperatively selected to form a dominant amount of an orthorhombic BSCCO phase in the reacted mixture. It may then be 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, all cooperatively selected to convert at least a portion of the orthorhombic BSCCO phase to the final superconducting BSCCO material.
    • 高品质,高Tc BSCCO或(Bi,Pb)SCCO超导体的生产和加工的新工艺首先制造形成包括多个坯料的束,每个坯料含有至少一根细丝,其包含显着量的 具有选定的中间相的四边形BSCCO相,并且基本上被约束金属包围。 通过热力学机械固结所述束以通过在协同选择的条件下对所述束施加压力和热量以在所述金属和所述长丝之间的界面处引起所述约束金属的相互扩散并且基本上完全消除所述束中的空隙而形成多丝前体制品,以及 在对束进行任何高应变纵向变形之前完成固结步骤。 然后将前体制品在具有第二选择的氧分压的惰性气氛中的第二选定处理温度下加热第二选定的时间段,第二处理温度,第二时间段和第二氧分压协同选择以形成 反应混合物中正交的BSCCO相的显着量。 然后可以将其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定的处理温度下加热第三选定的时间段,全部协同选择以将至少一部分正交BSCCO相转化为最终超导BSCCO材料。
    • 4. 发明授权
    • Method of forming BSCCO superconducting composite articles
    • 形成BSCCO超导复合材料制品的方法
    • US6069116A
    • 2000-05-30
    • US927006
    • 1997-09-10
    • Qi LiGilbert N. Riley, Jr.Lawrence J. MasurEric R. PodtburgRonald D. ParrellaMartin W. RupichDonald R. ParkerWilliam L. CarterWilliam J. RosatiMark D. Teplitsky
    • Qi LiGilbert N. Riley, Jr.Lawrence J. MasurEric R. PodtburgRonald D. ParrellaMartin W. RupichDonald R. ParkerWilliam L. CarterWilliam J. RosatiMark D. Teplitsky
    • H01L39/24
    • H01L39/248Y10T29/49014
    • A novel process of the production and processing of high quality, high T.sub.c BSCCO or (Bi,Pb)SCCO superconductors starts with fabrication of a forming a bundle including a plurality of billets, each billet containing at least one filament comprising a dominant amount of an tetragonal BSCCO phase with selected intermediate phases, and substantially surrounded by a constraining metal. The bundle is thermomechanically consolidated to form a multifilamentary precursor article by applying pressure and heat to the bundle under conditions cooperatively selected to cause interdiffusion of said constraining metal at the interfaces between said metal and said filaments and substantially complete elimination of voids in said bundle, and the consolidation step is completed before any high strain longitudinal deformation is performed on the bundle. The precursor article is then heated 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, the second time period and the second oxygen partial pressure being cooperatively selected to form a dominant amount of an orthorhombic BSCCO phase in the reacted mixture. It may then be 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, all cooperatively selected to convert at least a portion of the orthorhombic BSCCO phase to the final superconducting BSCCO material.
    • 高品质,高Tc BSCCO或(Bi,Pb)SCCO超导体的生产和加工的新工艺首先制造形成包括多个坯料的束,每个坯料含有至少一根细丝,其包含显着量的 具有选定的中间相的四边形BSCCO相,并且基本上被约束金属包围。 通过热力学机械固结所述束以通过在协同选择的条件下对所述束施加压力和热量以在所述金属和所述长丝之间的界面处引起所述约束金属的相互扩散并且基本上完全消除所述束中的空隙而形成多丝前体制品,以及 在对束进行任何高应变纵向变形之前完成固结步骤。 然后将前体制品在具有第二选择的氧分压的惰性气氛中的第二选定处理温度下加热第二选定的时间段,第二处理温度,第二时间段和第二氧分压协同选择以形成 反应混合物中正交的BSCCO相的显着量。 然后可以将其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定的处理温度下加热第三选定的时间段,全部协同选择以将至少一部分正交BSCCO相转化为最终超导BSCCO材料。