1. National Engineering Laboratory for Superconducting Materials (NELSM), Western Superconducting Technologies Co., Ltd., 2. Northwest Institute for Nonferrous Metal Research (NIN), Xi’an
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DOI:
10.7502/j.issn.1674-3962.2015.05.11
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Abstract:
MgB2 superconductor has a huge potential at the application of superconducting magnets of magnetic resonance imaging (MRI) system with the operating conditions of 15~20 K and 1~2T. In this paper, we introduced the recent progress on fabrication technique of practical MgB2 superconducting wires and tapes, discussed the key factors that affect the critical current density, Jc properties of superconducting wires, and also compared the effects of drawing, rolling and hypo-extrusion process on superconducting properties of MgB2 wires. This paper will benefit developing the fabrication technique of practical kilometer MgB2 superconducting wires and tapes.