1 National Engineering Labortary for Superconducting Materials, Western Superconducting Technologies Co. Ltd, Xin, 710016 2 Northwest Institute for Nonferrous Metal Research, Xin, 710018
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DOI:
10.7502/j.issn.1674-3962.2013.09.05
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Abstract:
Due to MgB2 superconductor has a series of advantages, like as high superconducting transition temperature Tc, simple binary crystal structure, cheap raw-materials cost, easy fabrication process of long wire and so on, it have attracted a lot of attentions, after discovered by Japanese scientists at 2001, and is thought as one of the most promising practical superconducting materials. Especially, it has a huge potential at the application of superconducting magnets of magnetic resonance imaging (MRI) system with the operating conditions of 15~20K and 1~2T. In this paper, we reviewed the recent development of MgB2 superconducting long wires and tapes, made by Powder-In-Tube method (PIT), Continuous Tube Filling and Forming process (CTFF) and Internal Magnesium Diffusion method (IMD). Research progress at superconducting properties of engineering critical current density of MgB2 superconducting wires has also been commented, and the latest studies on MgB2 superconducting magnets are reviewed.