| 摘要 |
FIELD: electricity.SUBSTANCE: invention is related to technology of strip high-temperature superconductors based on mixed yttrium-, barium- and copper oxides (YBCO) and it can be used during design and manufacturing of high-temperature superconductors of the second generation, in particular, for pulse magnet systems and other installations where superconductors with high mechanic strength are required. The target of the claimed invention is to develop a reliable structure of a high-temperature superconductor with high conductivity and mechanical strength more than 1000 MPa, which is intended for use in superconducting power cables. The high-temperature superconductor includes a textured strip substrate with a buffer layer, a high-temperature superconductor (HTS) layer, protective coating of HTS layer applied in-series as well as strip metal coating soldered at both sides, at that the strip coating is made of nanocomposite material Cu-Nb which contains from 5 up to 30% of Nb and has mechanical strength from 400 MPa up to 1000 MPa.EFFECT: stabilisation of conducting properties for high-temperature superconductors in conditions of bending deformation.3 cl, 1 dwg |
