ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The strain dependence of the critical current, Ic, of Bi2223/Ag/Ag-alloy compositesuperconducting tapes has been studied both experimentally and analytically under bendingdeformation for two types of tape used in the VAMAS bending round-robin program (classified asVAM1 and 3). Our former analysis showed that the experimentally obtained Ic values were betweenthe calculated ones based on a damage-free initial state and a case where delamination occupied thefull width of the tape mid-plane. The experimentally obtained Ic values were explained by thedelamination occupying partial width of the tape mid-plane. However, the microscopic observationindicated that the delamination location in the thickness direction was not limited to the mid-plane.In the present study, the analysis was modified to incorporate the movement of the delaminationlocation in the thickness direction. The calculated Ic values with delamination increased when thedelamination location moved to compressive side of the tape, and decreased when that moved totensile side of the tape. Finally, the experimental Ic values can be understood by the distribution ofdelamination in both width and thickness direction
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.919.pdf
