Three-point bending fracture behaviour of Bi-2223 bulk composed of Ag wire and its critical current after fracture

Silver wires were composed to Bi-2223 bulk to improve transport current property and fracture behaviour. The Bi-2223/Ag wire bulk prepared was 5 mm wide, 22 mm long and a few millimetres thick depending on the Ag wire content. The mechanical property was investigated using the three-point bending te...

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Bibliographic Details
Published in:Superconductor science & technology 2003-09, Vol.16 (9), p.980-983
Main Authors: Nishimura, Arata, Hishinuma, Yoshimitsu, Yoshizawa, Shuji
Format: Article
Language:English
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Summary:Silver wires were composed to Bi-2223 bulk to improve transport current property and fracture behaviour. The Bi-2223/Ag wire bulk prepared was 5 mm wide, 22 mm long and a few millimetres thick depending on the Ag wire content. The mechanical property was investigated using the three-point bending test, and an interlaminar fracture and a bending fracture were observed. The bonding strength on the interface of the silver and Bi-2223 matrix can affect the fracture mode. The composed samples did not separate into small pieces and the cracked sample showed superconductivity at 77 K.
ISSN:0953-2048
1361-6668
DOI:10.1088/0953-2048/16/9/303