The effect of carbon source on the properties of chemical doped MgB 2 tapes Conference

Zhang, XP, Yao, C, Wang, DL et al. (2011). The effect of carbon source on the properties of chemical doped MgB 2 tapes . 471(21-22), 1124-1127. 10.1016/j.physc.2011.05.140

cited authors

  • Zhang, XP; Yao, C; Wang, DL; Wang, CD; Gao, ZS; Wang, L; Qi, YP; Wang, CL; Ma, YW

fiu authors

abstract

  • The doping effect of different carbon source on the properties of MgB 2 tapes was compared using three typical dopants, nano-C, C 60, and C9H11NO. It is found that C 60 doped samples showed the highest carbon substitution ratio and resistivity, with the lowest Tc. For the nano-C doped samples, T c did not drop so significant, which is only 2 K lower than that of the pure ones. Compared to C60 and C9H11NO doped samples, the nano-C doped samples show a lower Jc value at 5 K. On the other hand, the C9H11NO doped samples show a high Jc value at both 5 K and 20 K. This is a representative demonstration to the complex affecting factors on the Jc-H property of MgB 2 tapes. Detailed mechanism for the property difference in MgB 2 induced by different chemical doping is discussed based on the systematically examined results. © 2011 Elsevier B.V. All rights reserved.

publication date

  • November 1, 2011

Digital Object Identifier (DOI)

start page

  • 1124

end page

  • 1127

volume

  • 471

issue

  • 21-22