Abstract
In this paper, AC losses of Bi-2223 tapes with different matrix of superconducting core were measured and analyzed. The two samples produced by a powder-in-tube method are multi-filamentary tape with Ag and AgAu matrix. The measurement was carried out under the environment of constant transport current and applied time-varying magnetic field. From experiment, losses for fields applied parallel to the c-axis of the textured Bi-2223 grains are larger by over an order of magnitude than those applied perpendicular. And it is confirmed that conductor losses with Ag matrix are larger than those with AgAu matrix.
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