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Enhancement of JC-B Properties in MoSi2 doped MgB2 tapes

Xianping Zhang·Yanwei Ma·Zhaoshun Gao·Zhengguang Yu·G. Nishijima·K. Watanabe
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Abstract

MoSi2 doped MgB2 tapes with different doping levels were prepared through the in-situ powder-in-tube method using Fe as the sheath material. Effect of MoSi2 doping on the MgB2/Fe tapes was investigated. It is found that the highest JC value was achieved in the 2.5 at.% doped samples, more than a factor of 4 higher compared to the undoped tapes at 4.2 K, 10 T, then further increasing the doping ratio caused a reduction of JC. Moreover, all doped tapes exhibited improved magnetic field dependence of Jc. The enhancement of JC-B properties in MoSi2 doped MgB2 tapes is attributed to good grain linkage and the introduction of effective flux pining centers with the doping.

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Xianping Zhang, Yanwei Ma, Zhaoshun Gao, Zhengguang Yu, G. Nishijima, K. Watanabe. 2006-02-17. Enhancement of JC-B Properties in MoSi2 doped MgB2 tapes. https://doi.org/10.1088/0953-2048%2F19%2F8%2F003

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