公开(公告)号：US20080113870A1

公开(公告)日：2008-05-15

申请号：US11692240

申请日：2007-03-28

申请人： Hee Gyoun LEE ,  Gye Won HONG ,  Kyeong Dal CHOI

发明人： Hee Gyoun LEE ,  Gye Won HONG ,  Kyeong Dal CHOI

IPC分类号： H01L39/24

CPC分类号： H01L39/2461 ,  H01L39/248

摘要： The present invention relates to a method for fabricating a filament type high-temperature superconducting wire in which a thin film type high-temperature superconducting wire is fabricated into a filament shape suitable for use with alternating current. The method includes depositing a conducting ceramic or metal epitaxially on a metal substrate 10 having bi-axially textured property to deposit a conductive thin film layer 20 (S10); depositing silver, copper, nickel, silver and copper, or a nickel alloy epitaxially on the deposited conductive thin film layer 20 to deposit a metal layer 30 (S20); cutting the deposited metal layer 30 into a filament shape having a predetermined width using a laser, a slitter, or etching and separating the cut metal layer from the conductive film layer 20 by selective etching, stress generation, or a difference in thermal expansion coefficients to form a metal filament 40 (S30); coating a single layer or multi-layers of a ceramic buffer layer 41 on the outside of the separated metal filament 40 (S40); coating a superconducting layer 42 on the outside of the ceramic buffer layer 41 (S50) ; and coating a single layer or multi-layers of a metal protective layer 43 on the outside of the superconducting layer 42 (S60).

摘要翻译： 本发明涉及一种制造长丝型高温超导线材的方法，其中将薄膜型高温超导线材制成适合于交流电流使用的长丝形状。 该方法包括在具有双轴纹理特性的金属衬底10上外延沉积导电陶瓷或金属以沉积导电薄膜层20（S10）。 在沉积的导电薄膜层20上外延沉积银，铜，镍，银和铜或镍合金以沉积金属层30（S 20）; 使用激光，分切机或蚀刻将沉积的金属层30切割成具有预定宽度的丝状，并通过选择性蚀刻，应力产生或热膨胀系数的差异将切割的金属层与导电膜层20分离， 形成金属丝40（S 30）; 在分离的金属细丝40的外侧涂覆单层或多层陶瓷缓冲层41（S40）; 在陶瓷缓冲层41的外侧涂覆超导层42（S50）; 并且在超导层42的外侧涂覆单层或多层金属保护层43（步骤60）。