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    Process for manufacturing a superconducting wire of compound oxide-type ceramics
    7.
    发明授权
    Process for manufacturing a superconducting wire of compound oxide-type ceramics 失效
    复合氧化物型陶瓷超导线的制造工艺

    公开(公告)号：US5981444A

    公开(公告)日：1999-11-09

    申请号：US851312

    申请日：1997-05-05

    申请人： Kazuo Sawada ,  Kazuhiko Hayasi ,  Sigeki Isojima ,  Susumu Yamamoto ,  Teruyuki Murai ,  Nozomu Kawabe ,  Hideo Itozaki ,  Nobuhiko Fujita ,  Kenichiro Sibata ,  Nobuyuki Sasaki ,  Shuji Yazu ,  Tetsuji Jodai

    发明人： Kazuo Sawada ,  Kazuhiko Hayasi ,  Sigeki Isojima ,  Susumu Yamamoto ,  Teruyuki Murai ,  Nozomu Kawabe ,  Hideo Itozaki ,  Nobuhiko Fujita ,  Kenichiro Sibata ,  Nobuyuki Sasaki ,  Shuji Yazu ,  Tetsuji Jodai

    IPC分类号： C04B35/45 ,  B21C1/00 ,  B28B1/00 ,  H01B12/02 ,  H01B12/04 ,  H01B13/00 ,  H01L39/24

    CPC分类号： H01L39/248 ,  C04B35/4504 ,  C04B35/4521 ,  Y10T29/49014

    摘要： A process for manufacturing a superconducting elongated article such as a superconducting wire which is applicable for manufacturing a superconducting coil or the like. The process includes steps comprising filling a metal pipe with material powder of ceramic consisting of compound oxide having superconductivity, performing plastic deformation of the metal pipe filled with the ceramic metal powder to reduce the cross section of the metal pipe, and then subjecting the deformed metal pipe to heat-treatment to sinter the ceramic material powder filled in the metal pipe. The ceramic material powder may contain compound oxide having Perovskite-type crystal structure exhibiting superconductivity.The metal pipe may selected from a group comprising metals of Ag, Au, Pt, Pd, Rh, Ir, Ru, Os, Cu, Al, Fe, Ni, Cr, Ti, Mo, W and Ta and alloys including these metals as the base. The heat-treatment may be carried out at a temperature ranging from 700 to 1,000.degree. C., The plastic deformation of the metal pipe filled with the ceramic metal powder may be performed in such manner that the cross section of the metal pipe is reduced at a dimensional reduction ratio ranging from 16% to 92% by wire-drawing or forging by means of dies, roller dies, or extruder.

    摘要翻译： 一种用于制造可应用于制造超导线圈等的超导细长物品例如超导线材的方法。 该方法包括以下步骤：用金属管填充由具有超导性的复合氧化物组成的陶瓷材料粉末，对填充有陶瓷金属粉末的金属管进行塑性变形，以减小金属管的横截面，然后对变形的金属 管道进行热处理以烧结填充在金属管中的陶瓷材料粉末。 陶瓷材料粉末可以含有具有超导性的钙钛矿型晶体结构的复合氧化物。 金属管可以选自Ag，Au，Pt，Pd，Rh，Ir，Ru，Os，Cu，Al，Fe，Ni，Cr，Ti，Mo，W和Ta的金属和包括这些金属的合金 的基地。 热处理可以在700〜1000℃的温度下进行。填充有陶瓷金属粉末的金属管的塑性变形可以以使金属管的截面减小的方式进行 通过模具，辊模或挤出机进行拉丝或锻造，尺寸减小率为16％至92％。