As the principal components and conductors of the new generation of very high field superconducting magnets, High Temperature Superconducting Tapes (HTS tapes) are getting a particular attention on their selection, characterisation and uses.
In this context, Tokamak Energy has multiple specification covering the needed performance, tolerance and characteristics of HTS tapes. The most...
As the development of new superconducting materials gradually reaches the bottleneck, it is worth exploring new method to obtain superconducting tapes with better performance through the composite method. BSCCO and REBCO high-temperature superconducting (HTS) tapes are two main commercialized tapes at present. In this paper, based on the parallel physical structure of BSCCO/REBCO composite...
The second-generation high-temperature superconducting (HTS) materials (REBCO) have excellent characteristics such as high current density, high critical transition temperature, and high critical magnetic field, and have broad application potential in many fields such as power transmission, fusion applications and healthcare. However, in the actual use of REBCO tapes, it is inevitable to...
NHMFL is designing a 40 T superconducting user magnet [1]. In this magnet, significant quantity of REBCO coated conductor will be used for the insert coils. Fully characterizing critical current (Ic) of REBCO tapes at temperatures of its operation (4.2 K) and during a potential magnet quench (> 4.2 K) is critical to the success of the project. Due to the strong anisotropy of REBCO coated...
A 5 T high-temperature superconducting (HTS) magnet utilizing conduction cooling with REBCO tape has been designed and constructed at the Wuhan National High Magnetic Field Center (WHMFC). The magnet comprises three double pancake (DP) coils, employing a no-insulation (NI) winding technique，and is designed to operate at a current of 260 A at 4 K. During magnet operation, the turn-to-turn...
High-temperature superconducting tapes, such as REBCO, are anticipated to be used in ultra-high field magnets (40 T), fusion reactors, and particle accelerators. Significant progress has been made in enhancing the critical current of REBCO tapes by introducing pinning centers. At 4.2 K, the critical current of 4 mm wide tapes can reach thousands of amperes. However, accurately measuring the...
REBCO high-temperature superconductor has been widely used in high magnetic field applications, because of the excellent critical current properties and high critical temperature. However, REBCO tape has a huge width-to-thickness ratio (typically in the range of 1000-10000) to cause too high power dissipation in the applications. One of the effective ways to reduce AC loss is to divide the...
The development of new high-field superconducting magnets is significantly constrained by the limiting critical properties of superconducting coated conductors (CCs). A major challenge is that REBCO tapes have high critical current densities. It is essential to create micro-bridges on REBCO tapes to test the critical current at low temperatures and high fields. However, pulsed high magnetic...
