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.
|Number of pages||5|
|Journal||Physica C: Superconductivity and its Applications|
|Publication status||Published - 10 Apr 1997|
|MoE publication type||A1 Journal article-refereed|
- Bending strain
- Bi-2223 composite superconductor