Enhanced critical current density of MgB2 superconductor synthesized in high magnetic fields
arXiv:cond-mat/0601245 · doi:10.1143/JJAP.45.L493
Abstract
The effect of high magnetic fields on the current carrying properties of both MgB2 bulks and Fe-sheathed tapes was investigated following different thermal sequences. It is found that application of a large magnetic field during processing results in the quite uniform microstructure and the better connectivity between the MgB2 grains. As a result, the Jc of these samples has shown much higher value than that of the MgB2 samples in the absence of magnetic field. The possible mechanism of the Jc enhancement under an external magnetic field is also discussed.
arXiv commentPresented at ISS2005, Tsukuba, 24-26 Oct., 2005; Revised version
References in corpus (5)
- Enhancement of the high-field critical current density of superconducting MgB2 by proton irradiation
- High Critical Current Density and Improved Irreversibility Field in Bulk MgB2 Made By A Scaleable, Nanoparticle Addition Route
- Hot isostatic pressing of powder in tube MgB2 wires
- Microstructure and superconducting properties of hot isostatically pressed MgB2
- Irreversibility Field and Flux Pinning in MgB2 with and Without SiC Additions
Cited by in corpus (4)
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- Strongly Enhanced Current-Carrying Performance in MgB2 Tape Conductors by Novel C60 Doping
- Development of Doped MgB2 Wires and Tapes for Practical Applications