Mechanical and superconducting properties of Nb3Sn wires with Nb-rod-processed CuNb reinforcement

作者：Oguro Hidetoshi^*; Awaji Satoshi; Watanabe Kazuo; Sugimoto Masahiro; Tsubouchi Hirokazu

来源：Superconductor Science and Technology, 2013, 26(9): 094002.

DOI：10.1088/0953-2048/26/9/094002

New Nb-rod-processed CuNb reinforced Nb3Sn superconducting wires have been developed for large high field magnet applications. The critical current, I-c, mechanical properties and resistivity are investigated. The residual strain and irreversible strain are found to be 0.35% and 0.77%, respectively. We found that the Nb-rod-processed wire has a large strain sensitivity to I-c. However, the wire has good mechanical properties, having a 0.2% proof stress of 280 MPa and a Young's modulus of 150 GPa. This means that the stress sensitivity of the I-c for the wire is small. These results show that the Nb-rod-processed wire is suitable as a strand of Rutherford cable for a high field superconducting magnet.

• 出版日期2013-9