Paper Title:
Effects of Spatial Distribution of Defects on Bending Deformation and Critical Current in Bi2223/Ag Superconducting Composite Tapes
  Abstract

The strain dependence of the critical current, Ic, of Bi2223/Ag/Ag-alloy composite superconducting tapes has been studied both experimentally and analytically under bending deformation for two types of tape used in the VAMAS bending round-robin program (classified as VAM1 and 3). Our former analysis showed that the experimentally obtained Ic values were between the calculated ones based on a damage-free initial state and a case where delamination occupied the full width of the tape mid-plane. The experimentally obtained Ic values were explained by the delamination occupying partial width of the tape mid-plane. However, the microscopic observation indicated 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 delamination location in the thickness direction. The calculated Ic values with delamination increased when the delamination location moved to compressive side of the tape, and decreased when that moved to tensile side of the tape. Finally, the experimental Ic values can be understood by the distribution of delamination in both width and thickness direction.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
919-924
DOI
10.4028/www.scientific.net/MSF.539-543.919
Citation
M. Hojo, M. Nakamura, M. Tanaka, T. Adachi, M. Sugano, S. Ochiai, K. Osamura, "Effects of Spatial Distribution of Defects on Bending Deformation and Critical Current in Bi2223/Ag Superconducting Composite Tapes", Materials Science Forum, Vols. 539-543, pp. 919-924, 2007
Online since
March 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ryosuke Matsui, Hisaaki Tobushi, Yoshiyasu Makino
Abstract:In this study, we performed the bending fatigue test and investigated the influence of strain ratio on fatigue life in TiNi shape memory...
1193
Authors: Dal Woo Jung, Nak Sam Choi
Abstract:Fatigue fracture behavior of a hybrid joint part for the tilting car body was evaluated in comparison to the case of static fracture. The...
2860
Authors: Wen Qing Song, Jing Fu Chai, Wen Ji Xu
Chapter 3: Steel and Iron Technology
Abstract:Plasma arc bending of laminated clad metal sheets (LCMS) is a newly developed technique that produces deformation in the LCMS by thermal...
468
Authors: Jung Hwan Kim, Ji Hwan Kim
Chapter 5: Technological Equipments and Machines
Abstract:In this work, flutter behavior of Functionally Graded Material (FGM) panel is investigated based on the physical neutral surface. The panel...
526
Authors: Yang An, Peter Hodgson, Chun Hui Yang
Abstract:To determine the relations between rolling passes, mechanical behaviours and microstructure evolution of AA7050 aluminum alloys, finite...
145