Conveners
Sat-Mo-Po.08 - Structural and Insulation Materials
- Etienne Rochepault (CEA Paris-Saclay)
- Abdel Soufiane (AFL)
With the widespread application of high-temperature superconducting (HTS) REBCO tapes in fields such as energy, healthcare, and transportation, their operating environments have become increasingly complex, placing higher demands on their operational stability. Although the multi-filamentary REBCO tapes can improve the electromagnetic performance, specific metals and compounds in REBCO tapes...
Although superconducting accelerator and fusion magnets operate at cryogenic temperature and in most cryogenic applications corrosion is not an issue, it is essential to avoid corrosion phenomena that may occur during production and fabrication of parts and components of magnet systems, or during their installation, assembly or maintenance. A delayed leak or a structural failure that would...
Rare-earth barium copper oxide (ReBCO) coated conductors (CCs) are considered promising materials for high-performance cables and high-field accelerator magnet design. ReBCO tape-wound magnets with no insulation between tapes were designed to protect themselves from thermal instability through a current-sharing mechanism. However, they face challenges such as insufficient mechanical support...
An organic olefin-based thermosetting dicyclopentadiene (DCP) resin is commercially available in Japan as TELENE® from RIMTEC Corporation, and its viscosity is less than one-tenth that of the CTD-101K® epoxy resin. In previous studies, the TELENE® can withstand greater strain than CTD-101K® and can achieve higher heat capacity when mixed with ceramic powders from a previous study. The use of...
Commonwealth Fusion Systems (CFS) is currently developing and building a commercially relevant fusion energy machine that will produce more energy than is put into it (SPARC). In this research, an insulation that electrically isolates the toroidal field (TF) magnets from each other is being tested to determine its behavior, evolution, and failure rate during the shear displacement and high...
Progress on NI-coil design for EU DEMO
M.Ortino, N. Bykovskiy
École Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC),
CH-5232 Villigen PSI, Switzerland.
This study presents the latest results of a 3D original Matlab code, developed for simulating in a fast fashion the charge/discharge of a EUROfusion DEMO toroidal field (TF) coil, by especially coupling both...
Bi-2212 multi-filament round wire is a high-field capable, isotropic conductor that does not experience the large screening-current stresses suffered by ReBCO. Together with its high current carrying capabilities, Bi-2212 is a very promising candidate for compact high-field/high-homogeneity magnets. Superconducting coils tend to experience large mechanical stresses under operating conditions....
There remains an urgent need for higher thermal conductivity electrical insulation for high steady-state thermally loaded superconducting and cryoresistive electromagnets, such as those used for fusion, undulator light sources, particle colliders, and alternating-current operated electric machines. Polymeric materials, which are currently used, demonstrate degraded thermal conductivity at...
High-temperature superconducting (HTS) rare-earth barium copper oxide (REBCO) magnets are typically fabricated in a stacked configuration of pancake coils. Conventionally, the electrical connections between pancake coils is achieved by joining the REBCO splice with soldering process. In this process, solder flux is applied to remove oxide layer on the REBCO tape surface and to enhance solder...
