不同截面尺寸Bi-2223多芯带材的错配角  

MISALIGNMENT ANGLES OF MULTIFILAMENTARY Bi2223 TAPES WITH DIFFERENT CROSS SECTION AREA

作　　者：李成山[1] 张平祥[1] D.Bourgault E.Mossang A.Sulpice 刘奉生[1] 赫清滨[1] 郑会玲[1] 熊晓梅[1] 马荣超[1] 纪平[1] 周廉[1] 

机构地区：[1]西北有色金属研究院,西安710016 [2]CRETACNRS,Grenoble,France [3]LCMICNRS,Grenoble,France [4]CRTBTCNRS,Grenoble,France

出　　处：《低温物理学报》2005年第A02期898-902,共5页Low Temperature Physical Letters

基　　金：国家"863"计划(2003AA306120)资助项目~~

摘　　要：采用输运电流方法测试了37芯Bi2223带材的平均错配角.带材的错配角随带材厚度的降低而减小,同时带材Jc升高.但过薄的带材由于加工不稳定易导致Ag/超界面不规则现象,并破坏界面晶粒取向,造成错配角增大.Misalignment angles in multifilamentary Bi2223 tapes have been studied by transport current density measurements in magnetic fields applied parallel and perpendicular to the surfaces. The results show that the misalignment angles are reduced and the Jc are enhanced as the thickness of the tapes decrease. But considering the affection of “Sausage effects”, the final thickness of tapes should not be too small, though the texture of tapes can be enhanced when reduced its thickness.

关 键 词：BI-2223带材 带材厚度 非取向角 

分 类 号：O511.3[一般工业技术—材料科学与工程]