Microstructure of the ceramic in superconducting Bi-2223 composite tapes after bending strain cycles

被引：9

作者：

Lahtinen, M

Paasi, J

Han, ZH

Sarkaniemi, J

机构：

[1] NKT RES CTR AS,DK-2605 BRONDBY,DENMARK

[2] TAMPERE UNIV TECHNOL,INST SCI MAT,FIN-33101 TAMPERE,FINLAND

来源：

PHYSICA C | 1997年 / 277卷 / 3-4期

关键词：

Bi-2223 composite superconductor; bending strain; fracture;

D O I：

10.1016/S0921-4534(97)00081-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Studying the microstructure of the ceramic in superconducting Bi-2223 based composite tapes after bending strain cycles, it was found that in Ag-sheathed tapes with a well-textured ceramic crack propagation took place preferentially in the tape plane, whereas in tapes with less texture the cracks were oriented perpendicular to the filament, A possible explanation for the unexpected crack propagation in the tape plane is given in terms of anisotropy in the elastic properties of the Bi-2223 ceramic.

引用

页码：238 / 242

页数：5

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