Effect of nano-C doping on the in-situ processed MgB2 tapes

Xianping Zhang, Yanwei Ma, Aixia Xu, Yulei Jiao, Ling Xiao, S. Awaji, K. Watanabe, Huan Yang, Haihu Wen

研究成果: Article査読

2 被引用数 (Scopus)

抄録

The effect of nano-C doping on the microstructure and superconducting properties of Fe-sheathed MgB2 tapes prepared through the in-situ powder-in-tube method was studied. Heat treatment was performed at a low temperature of 650°C for 1 h. Scanning electron microscopy investigation revealed that the smaller grain size of MgB2 in the samples with the C-doping. Further, the a-axis lattice parameter and transition temperature decreased monotonically with increasing doping level, which is due to the C substitution for B. High critical current density JC values in magnetic fields were achieved in the doped samples because of the very fine-grained microstructure of the superconducting phase obtained with C doping.

本文言語English
論文番号025
ページ(範囲)99-102
ページ数4
ジャーナルJournal of Physics: Conference Series
43
1
DOI
出版ステータスPublished - 2006 6 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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