Strong influence of boron precursor powder on the critical current density of MgB<sub>2</sub>

Soo Kien Chen, K. A. Yates, M. G. Blamire, Judith L. MacManus‐Driscoll

Type: Article

Publication Date: 2005-10-04

Citations: 98

DOI: https://doi.org/10.1088/0953-2048/18/11/011

Abstract

The influence of the nature of the boron precursor on the superconducting properties of polycrystalline MgB2 was studied. Critical current densities (Jc) for MgB2 made from high purity amorphous boron are at least a factor of three higher than typical values measured for standard MgB2 samples made from amorphous precursors. Two possible mechanisms are proposed to account for this difference.

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arXiv (Cornell University) - View - PDF
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