Multi-filamentary REBCO tapes fabricated by scratching a buffer layer along the tape longitudinal direction

作者：Kurihara Chihaya^*; Fujita Shinji; Nakamura Naonori; Igarashi Mitsunori; Iijima Yasuhiro; Higashikawa Kohei; Uetsuhara Dai; Kiss Takanobu; Iwakuma Masataka

来源：Physica C-Superconductivity and Its Applications, 2016, 530: 68-71.

DOI：10.1016/j.physc.2016.08.006

• High temperature superconductors
• Yttrium barium copper oxide
• Superconducting tapes
• Multi-filamentary tapes

A method for making multi-filamentary REBCO tapes by only scratching buffer layer was developed for coil application which requires accurate magnetic fields. By continuous I-c measurement, we found that our new multi-filamentary tape could provide almost equal I-c compared to conventional tapes. Then, using EBSD and RTR-SHPM methods, a divided structure of REBCO layer was surely confirmed. AC loss was also decreased. Furthermore, the result of delamination test of our new multi-filamentary tape showed enough mechanical property. As a result, we have succeeded in developing 100 m class multi-filamentary tape for superconducting coil.

• 出版日期2016-11-15