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

被引：0

作者：

Lahtinen, Markku ^{[1
]}

Paasi, Jaakko ^{[1
]}

Han, Zhenghe ^{[1
]}

Sarkaniemi, Jyrki ^{[1
]}

机构：

[1] Tampere Univ of Technology, Tampere, Finland

来源：

Physica C: Superconductivity and its Applications | 1997年 / 277卷 / 3-4期

关键词：

Anisotropy - Ceramic materials - Composite materials - Crack propagation - Cracks - Elasticity - Fracture - Microstructure - Strain - Textures;

D O I：

暂无

中图分类号：

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