Conveners
Fri-Af-Po.08 - Advances in Nb3Sn and MgB2 Conductors I
- Yuhu Zhai (Princeton Plasma Physics Laboratory)
- Luigi Reccia (Fusion for Energy)
The authors have designed a 1-MJ-class mobile superconducting magnetic energy storage (SMES) system. The SMES coil features a force-balanced helical coil (FBC) to reduce weight, as the FBC minimizes the mass required to support the induced electromagnetic forces.
In this study, the authors propose using 0.67-mm diameter MgB2 strands, manufactured by Hitachi, Ltd., for winding the FBC....
With the goal of generating net energy by 2040, fusion energy represents a cornerstone in the development of sustainable power generation technology, combining innovative approaches with advanced engineering solutions. Several programs aim to demonstrate the viability of fusion as a scalable energy source. However, the integration of remountable joints, the presence of large amounts of stored...
SuperKEKB accelerator is considering the introduction of superconducting sextupole magnets to improve collision performance. In addition to the main sextupole coil, three types of correction coils will be incorporated in this superconducting magnet. We are developing the correction coils using ultra-fine strand Nb3Al superconducting cables with strand diameters less than 50 um fabricated by...
Superconducting wires undergo large plastic deformation during manufacturing of Rutherford cables, especially at the cable edges. Previous studies on Restack Rod Process (RRP) Nb$_3$Sn wires have shown that the position of the strands in the cable and the orientation of the subelement stack, with respect to the main rolling direction during cabling, are affecting the amount of plastic...
With the innovation of accelerator magnet technology, the design of superconducting magnets is also changing and put forward high requirements on the performance of NbTi superconducting wire, which requires high critical current density and ultra low loss. A new type of superconducting wire with high critical current density, fine filament, ultra low loss NbTi/Cu5Ni/Cu has been developed in...
Scientists have incorporated other metal as pinning centers into Niobium-titanium alloys in order to increase the critical current density of Niobium-titanium superconductors. This type of superconductor is known as an artificial pinning center niobium-titanium superconductor. Methods for fabricating artificially pinned superconductors include Rod-based, Gun-drill, Diffused-layer, Jelly-roll,...
Nb3Sn wires are wildly used in high-field (> 10 T) magnets and have great potential value in the next several decades. Internal-tin Nb3Sn strand has been developed by many methods for the future fusion reactor, high energy accelerator and so on. Increasing the critical current density of Nb3Sn wire, reducing the use amount of wire in magnets and reducing the price are important ways to promote...
In the development of high-Jc superconducting wires, the formation of Nb3Sn is critical, and KAT utilizes Nb filaments combined with SnTi alloy to facilitate Nb3Sn formation. In this study, a ternary alloy was fabricated by incorporating 5 wt% Cu into SnTi alloy via powder metallurgy, resulting in micro-sized SnCuTi alloy particles. These particles were then incorporated into high-Jc wires,...
