Title

Observation of flux jump in (MgB2)0.96Ni0.04 superconductor doped with milled Ni powders

RIS ID

106509

Publication Details

Cai, Q., Ma, Z., Zhao, Q. & Liu, Y. (2011). Observation of flux jump in (MgB2)0.96Ni0.04 superconductor doped with milled Ni powders. Journal of Superconductivity and Novel Magnetism, 24 (6), 2013-2017.

Abstract

Bulk (MgB 2) 0.96Ni 0.04 samples doping with premilled Ni powders were sintered at 750∈°C for 30 min. During sintering, liquid Mg-Ni phase prompts solid-solid reaction between Mg and B and the size of milled Ni powder determines the final distribution of the secondary MgNi 2.5B 2 phase in the sintered samples. A flux jump was observed in the (MgB 2) 0.96Ni 0.04 samples doping with Ni powders. Recognized from the measured superconductive properties, smaller-sized Ni powders can provide more effective flux pinning centers and thus improve the performance of the critical current density. 2011 Springer Science+Business Media, LLC.

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Link to publisher version (DOI)

http://dx.doi.org/10.1007/s10948-011-1160-2