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Flux Loss Measurements of Ag- Sheathed Bi-2223 Tapes



Mi-Hye Jang, Winnie K. Wong-Ng, Robert D. Shull, Lawrence P. Cook, DeaSik Suh


Alternating current (AC) losses of two Bi-2223 ([Bi, Pb] : Sr : Ca : Cu :O = 2:2:2:3) tapes [one untwisted (Tape I, twist-pitch of mm) and the other with a twist-pitch of 8mm (Tape II)] were measured and compared. These samples, produced by the powder-in-tube (PIT) method, are multi-filamentary and have an Ag/Au and Ag matrix, respectively. Susceptibility measurements were conducted while cooling in a magnetic field. Flux loss measurements were conducted as a function of ramping rate, frequency and field direction. The AC flux loss increases as the twist-pitch of the tapes decreased, in agreement with the Norris Equation.
Ceramic Transactions


(Ag/Au and Ag mztrix), AC loss measurements, Bi-2223 superconductor tapes, different twist pitch, powder-in-tube methods


Jang, M. , Wong-Ng, W. , Shull, R. , Cook, L. and Suh, D. (2004), Flux Loss Measurements of Ag- Sheathed Bi-2223 Tapes, Ceramic Transactions (Accessed April 14, 2024)
Created January 1, 2004, Updated February 19, 2017