High critical current density in powder-in-tube processed MgB2/Ta/Cu wire

Yong Feng, Yong Zhao, A. K. Dradhan, Lian Zhou, Xianghong Liu, Ping Ji, Pingxiang Zhang, Yuping Sun

Research output: Contribution to journalArticlepeer-review

Abstract

The magnetization of dense MgB2/Ta/Cu wires prepared by the powder-in-tube method is measured by a SQUID magnetometer. The results indicate that the critical temperature of MgB2/Ta/Cu is around 38.4 K with a sharp transition width of 0.6 K. The MgB2/Ta/Cu wire shows a strong flux pinning and the critical current density is higher than 105 A/cm2 (5 K, self-field) and 104 A/cm2 (20 K, 1 T). Also, the irreversibility field of the sample reaches 6.6 T at 5 K.

Original languageEnglish
Pages (from-to)251-252
Number of pages2
JournalChinese Science Bulletin
Volume47
Issue number3
DOIs
StatePublished - 2002
Externally publishedYes

Keywords

  • Critical current density
  • MgB
  • Powder-in-tube process

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