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Article
Magneto-optical images of Ag/Bi-2223 tapes processed by flat rolling, “sandwich” rolling and pressing
Faculty of Engineering - Papers (Archive)
  • Hua-Kun Liu, University of Wollongong
  • A. Polyanskii, University of Wisconsin, Madison, USA
  • W. M. Chen, University of Wollongong
  • Y. C. Guo, University of Wollongong
  • S. X. Dou, University of Wollongong
  • M. Apperley, Australian Superconductors, Coniston
RIS ID
6476
Publication Date
1-1-2001
Publication Details

This article was originally published as: Liu, HK, Polyanskii, A, Chen, WM et al, Magneto-optical images of Ag/Bi-2223 tapes processed by flat rolling, ‘sandwich’ rolling and pressing, IEEE Transactions on Applied Superconductivity, March 2001, 11(1), 3764-3767. Copyright IEEE 2001.

Abstract
Magneto-optical imaging (MOI) has been used for study Ag/Bi-2223 tapes processed using flat rolling, “sandwich” rolling, and pressing methods for the intermediate mechanical deformation in powder-in-tube process. The results show that not only the density of the microcracks but also their distribution affect Jc. Rolled tapes have a higher density of microcracks than pressed tapes. Although the flat rolled tape and “sandwich” rolled tape have the same level density of microcracks at the same reduction, the cracks in the former are more in the transverse direction than in the latter. In all three cases, Jc reaches a maximum value at an optimal reduction rate.
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Citation Information
Hua-Kun Liu, A. Polyanskii, W. M. Chen, Y. C. Guo, et al.. "Magneto-optical images of Ag/Bi-2223 tapes processed by flat rolling, “sandwich” rolling and pressing" (2001)
Available at: http://works.bepress.com/hkliu/39/