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

Markku Lahtinen; Jaakko Paasi; Zhenghe Han; Jyrki Sarkaniemi

doi:10.1016/S0921-4534(97)00081-6

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

Markku Lahtinen^*, Jaakko Paasi, Zhenghe Han, Jyrki Sarkaniemi

^*Corresponding author for this work

Not published at VTT

Research output: Contribution to journal › Article › Scientific › peer-review

11 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	238-242
Number of pages	5
Journal	Physica C: Superconductivity and its Applications
Volume	277
Issue number	3-4
DOIs	https://doi.org/10.1016/S0921-4534(97)00081-6
Publication status	Published - 10 Apr 1997
MoE publication type	A1 Journal article-refereed

Keywords

Bending strain
Bi-2223 composite superconductor
Fracture

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10.1016/S0921-4534(97)00081-6

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abstract = "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.",

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AU - Paasi, Jaakko

AU - Han, Zhenghe

AU - Sarkaniemi, Jyrki

PY - 1997/4/10

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N2 - 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.

AB - 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.

KW - Bending strain

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KW - Fracture

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ER -

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

Abstract

Keywords

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