Temperature dependence of critical currents and ac transport losses in (Bi,Pb)2Sr2Ca2Cu3Ox and YBa2Cu3Oy tapes

Guo Min Zhang, D. C. Knoll, D. N. Nguyen, P. V.P.S.S. Sastry, Justin Schwartz

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The critical currents and self-field ac losses of YBa2Cu 3Oy coated conductors and (Bi,Pb)2Sr 2Ca2Cu3Ox tapes were measured at several temperatures between 45K and the respective critical temperature. The temperature dependence of ac losses was measured at 50Hz using the lock-in method for a transport current. The frequency dependence of ac loss was measured at 55K for transport current frequencies from 25 to 400Hz. The results show that variation of ac transport loss as a function of normalized critical current is nearly the same at all temperatures in the measured temperature range for both YBa2Cu3Oy and (Bi,Pb)2Sr 2Ca2Cu3Ox tapes. The temperature dependence of the loss factor, however, is different for (Bi,Pb) 2Sr2Ca2Cu3Ox and YBa 2Cu3Oy tapes because of the ferromagnetic loss in the NiW-based coated conductor substrate. Similarities and differences in the temperature and frequency dependence of ac transport losses between (Bi,Pb)2Sr2Ca2Cu3Ox and YBa2Cu3Oy tapes are discussed.

Original languageEnglish (US)
Article number006
Pages (from-to)516-521
Number of pages6
JournalSuperconductor Science and Technology
Volume20
Issue number6
DOIs
StatePublished - Jun 1 2007

Fingerprint

Critical currents
Tapes
tapes
critical current
temperature dependence
Temperature
conductors
temperature
critical temperature
Substrates

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

Zhang, Guo Min ; Knoll, D. C. ; Nguyen, D. N. ; Sastry, P. V.P.S.S. ; Schwartz, Justin. / Temperature dependence of critical currents and ac transport losses in (Bi,Pb)2Sr2Ca2Cu3Ox and YBa2Cu3Oy tapes. In: Superconductor Science and Technology. 2007 ; Vol. 20, No. 6. pp. 516-521.
@article{8d1eb9785c3444c2b16a68eeb43844ec,
title = "Temperature dependence of critical currents and ac transport losses in (Bi,Pb)2Sr2Ca2Cu3Ox and YBa2Cu3Oy tapes",
abstract = "The critical currents and self-field ac losses of YBa2Cu 3Oy coated conductors and (Bi,Pb)2Sr 2Ca2Cu3Ox tapes were measured at several temperatures between 45K and the respective critical temperature. The temperature dependence of ac losses was measured at 50Hz using the lock-in method for a transport current. The frequency dependence of ac loss was measured at 55K for transport current frequencies from 25 to 400Hz. The results show that variation of ac transport loss as a function of normalized critical current is nearly the same at all temperatures in the measured temperature range for both YBa2Cu3Oy and (Bi,Pb)2Sr 2Ca2Cu3Ox tapes. The temperature dependence of the loss factor, however, is different for (Bi,Pb) 2Sr2Ca2Cu3Ox and YBa 2Cu3Oy tapes because of the ferromagnetic loss in the NiW-based coated conductor substrate. Similarities and differences in the temperature and frequency dependence of ac transport losses between (Bi,Pb)2Sr2Ca2Cu3Ox and YBa2Cu3Oy tapes are discussed.",
author = "Zhang, {Guo Min} and Knoll, {D. C.} and Nguyen, {D. N.} and Sastry, {P. V.P.S.S.} and Justin Schwartz",
year = "2007",
month = "6",
day = "1",
doi = "10.1088/0953-2048/20/6/006",
language = "English (US)",
volume = "20",
pages = "516--521",
journal = "Superconductor Science and Technology",
issn = "0953-2048",
publisher = "IOP Publishing Ltd.",
number = "6",

}

Temperature dependence of critical currents and ac transport losses in (Bi,Pb)2Sr2Ca2Cu3Ox and YBa2Cu3Oy tapes. / Zhang, Guo Min; Knoll, D. C.; Nguyen, D. N.; Sastry, P. V.P.S.S.; Schwartz, Justin.

In: Superconductor Science and Technology, Vol. 20, No. 6, 006, 01.06.2007, p. 516-521.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Temperature dependence of critical currents and ac transport losses in (Bi,Pb)2Sr2Ca2Cu3Ox and YBa2Cu3Oy tapes

AU - Zhang, Guo Min

AU - Knoll, D. C.

AU - Nguyen, D. N.

AU - Sastry, P. V.P.S.S.

AU - Schwartz, Justin

PY - 2007/6/1

Y1 - 2007/6/1

N2 - The critical currents and self-field ac losses of YBa2Cu 3Oy coated conductors and (Bi,Pb)2Sr 2Ca2Cu3Ox tapes were measured at several temperatures between 45K and the respective critical temperature. The temperature dependence of ac losses was measured at 50Hz using the lock-in method for a transport current. The frequency dependence of ac loss was measured at 55K for transport current frequencies from 25 to 400Hz. The results show that variation of ac transport loss as a function of normalized critical current is nearly the same at all temperatures in the measured temperature range for both YBa2Cu3Oy and (Bi,Pb)2Sr 2Ca2Cu3Ox tapes. The temperature dependence of the loss factor, however, is different for (Bi,Pb) 2Sr2Ca2Cu3Ox and YBa 2Cu3Oy tapes because of the ferromagnetic loss in the NiW-based coated conductor substrate. Similarities and differences in the temperature and frequency dependence of ac transport losses between (Bi,Pb)2Sr2Ca2Cu3Ox and YBa2Cu3Oy tapes are discussed.

AB - The critical currents and self-field ac losses of YBa2Cu 3Oy coated conductors and (Bi,Pb)2Sr 2Ca2Cu3Ox tapes were measured at several temperatures between 45K and the respective critical temperature. The temperature dependence of ac losses was measured at 50Hz using the lock-in method for a transport current. The frequency dependence of ac loss was measured at 55K for transport current frequencies from 25 to 400Hz. The results show that variation of ac transport loss as a function of normalized critical current is nearly the same at all temperatures in the measured temperature range for both YBa2Cu3Oy and (Bi,Pb)2Sr 2Ca2Cu3Ox tapes. The temperature dependence of the loss factor, however, is different for (Bi,Pb) 2Sr2Ca2Cu3Ox and YBa 2Cu3Oy tapes because of the ferromagnetic loss in the NiW-based coated conductor substrate. Similarities and differences in the temperature and frequency dependence of ac transport losses between (Bi,Pb)2Sr2Ca2Cu3Ox and YBa2Cu3Oy tapes are discussed.

UR - http://www.scopus.com/inward/record.url?scp=34249279831&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34249279831&partnerID=8YFLogxK

U2 - 10.1088/0953-2048/20/6/006

DO - 10.1088/0953-2048/20/6/006

M3 - Article

AN - SCOPUS:34249279831

VL - 20

SP - 516

EP - 521

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

SN - 0953-2048

IS - 6

M1 - 006

ER -