公开(公告)号：US20010027166A1

公开(公告)日：2001-10-04

申请号：US09769705

申请日：2001-01-25

申请人： American Superconductor Corporation Delaware Corporation

发明人： Gregory L. Snitchler ,  Jeffrey M. Seuntjens ,  William L. Barnes ,  Gilbert N. Riley JR.

IPC分类号： H01L033/00 ,  B23P011/00

CPC分类号： H01L39/143 ,  H01L39/248 ,  Y10S505/884 ,  Y10S505/926 ,  Y10T29/49014

摘要： A cabled conductor comprises a plurality of transposed strands each comprising one or more preferably twisted filaments preferably surrounded or supported by a matrix material and comprising textured anisotropic superconducting compounds which have crystallographic grain alignment that is substantially unidirectional and independent of the rotational orientation of the strands and filaments in the cabled conductor. The cabled conductor is made by forming a plurality of suitable composite strands, forming a cabled intermediate from the strands by transposing them about the longitudinal axis of the conductor at a preselected strand lay pitch, and, texturing the strands in one or more steps including at least one step involving application of a texturing process with a primary component directed orthogonal to the widest longitudinal cross-section of the cabled intermediate, at least one such orthogonal texturing step occurring subsequent to said strand transposition step. In a preferred embodiment, the filament cross-section, filament twist pitch, and strand lay pitch are cooperatively selected to provide a filament transposition area which is always at least ten times the preferred direction area of a typical grain of the desired anisotropic superconducting compound. For materials requiring biaxial texture, the texturing step preferably includes application of a texturing process with a second primary component in a predetermined direction in the plane of the widest longitudinal cross-section of the conductor.

摘要翻译： 电缆导体包括多个转置的绞合线，每个绞合线包括一个或多个优选的绞合长丝，优选地被基质材料包围或支撑，并且包括纹理各向异性超导化合物，其具有基本上单向且不依赖于线的旋转取向的晶体取向， 电缆导体中的细丝。 电缆导体通过形成多个合适的复合线材制成，通过以预选的绞线间距将导体的纵向轴线绕它们绕导体的纵向轴线形成缆线中间体，并且以一个或多个步骤将绞合线组织包括在 至少一个步骤涉及使用与所述有线中间件的最宽纵向横截面垂直的主要部件进行纹理化处理，在所述链转置步骤之后发生的至少一个这样的正交纹理化步骤。 在优选的实施方案中，协调地选择细丝横截面，长丝扭曲节距和绞线间距，以提供总是至少是所需各向异性超导化合物的典型颗粒的优选方向面积的十倍的细丝转置区域。 对于需要双轴纹理的材料，纹理化步骤优选地包括在导体的最宽纵向截面的平面中沿预定方向施加具有第二主要部件的纹理处理。