Enhanced Jc-B properties of MgB2 tapes by yttrium acetate doping

Dongliang Wang, Zhaoshun Gao, Xianping Zhang, Chao Yao, Chengduo Wang, Shuxia Zhang, Yanwei Ma, Satoshi Awaji, Kazuo Watanabe

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We report the effect of yttrium acetate addition on in situ powder-in-tube processed MgB2/Fe tapes. The amount of yttrium acetate was varied from 0 to 20wt% and sintering was performed at 700-850 °C for 1h in a flowing Ar atmosphere. We found that a significant Jc-B enhancement was easily achieved in high field by yttrium acetate doping. At 4.2K, the transport Jc for the best yttrium-acetate-added tapes (10wt%) reached almost 104Acm- 2 at 12T. The improvement of Jc performance in the yttrium-acetate-doped samples can be attributed to the combination of the carbon substitution for B and stronger flux pinning.

Original languageEnglish
Article number075002
JournalSuperconductor Science and Technology
Volume24
Issue number7
DOIs
Publication statusPublished - 2011 Jul 1

ASJC Scopus subject areas

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

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