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Losses in ac of BSCCO-2223 superconducting monofilament and multifilament tapes at power frequencies

Published online by Cambridge University Press:  31 January 2011

S. Mench ,
M. Lelovic ,
T. Deis ,
N. G. Eror ,
U. Balachandran  and
P. Haldar
S. Mench
Affiliation:
Department of Materials Science, University of Pittsburgh, Pennsylvania 15261
M. Lelovic
Affiliation:
Department of Materials Science, University of Pittsburgh, Pennsylvania 15261
T. Deis
Affiliation:
Department of Materials Science, University of Pittsburgh, Pennsylvania 15261
N. G. Eror
Affiliation:
Department of Materials Science, University of Pittsburgh, Pennsylvania 15261
U. Balachandran
Affiliation:
Energy Technology Division, Argonne National Laboratory, Argonne, Illinois 60439
P. Haldar
Affiliation:
Intermagnetics General Corporation, Latham, New York 12100
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Abstract

The ac magnetic losses at power frequencies (60 Hz) were investigated for mono- and multifilament Ag-sheathed (Bi, Pb)2Sr2Ca2Cu3Oy (BSCCO-2223) tapes with similar Ic values at 77 K. The multifilament sample exhibited higher losses than the monofilament under the same conditions. Loss peaks are discussed in terms of intergranular, intragranular, and eddy current losses. Because of BSCCO's anisotropy, field orientation has a large effect on the magnitude of these peaks, even at relatively small angles. Losses for fields applied parallel to the c-axis of the textured BSCCO grains are larger by over an order of magnitude than those applied perpendicular.

Type
Articles
Information
Journal of Materials Research , Volume 12 , Issue 11 , November 1997 , pp. 3085 - 3089
Copyright
Copyright © Materials Research Society 1997

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