Contribution à l'Etude des aimants supraconducteurs utilisant des matériaux supraconducteurs à haute température de transition
type: Dataset
contact point: Organization
  fn: CCSD
keyword: quench
keyword: haute-temperature-critique
keyword: protection-daimant
keyword: modele-thermoelectrique
keyword: haut-champ-magnetique
keyword: simulation-numerique
keyword: theses
keyword: spiengineering-sciences-physics
keyword: aimant-supraconducteur
keyword: jonction-electrique
keyword: ybacuo
keyword: infoeu-reposemanticsdoctoralthesis
keyword: transition-resistive
landing page: https://theses.hal.science/tel-00904070
description: The new industrial superconductors using high critical temperature compounds offer new possibilities for superconducting magnetism. Indeed they allow higher magnetic field with the same classical cryogenics at 4.2 K on one hand, and on the other hand they also pave the way for superconducting magnets working between 10 K and 30 K. The high temperature superconductors are then needed in order to produce magnetic fields higher than 16 T (case of HTS dipole insert for Large Hadron Collider at CERN) or to increase the specific density stored in one SMES (Superconducting Magnetic Energy Storage, in the case of the SuperSMES ANR Project). Nevertheless the indisputable assets (critical temperature, critical magnetic field, mechanical stresses) brought by the use of High critical temperature superconductors like YBCO, used in superconducting magnets, require to solve some challenges. Their behavior is still badly understood, especially during the resistive transitions. To succeed in protecting these conductors we need a new reflection on protection schemes designed to avoid the thermal and mechanical damages. The answer to the question: "Can we use those materials in the long run inside superconducting magnets?" is now inescapable. Some answers are given here. The use of the conductors is approached through various experimental studies to understand the material (electrical characterization and modeling of the critical surface) and to define the key stages of high critical temperature superconducting magnets manufacturing (work on the junctions between conductors and pancakes). This study led to the creation of two coils in order to identify the issues related to the use of YBCO tapes. A numerical thermo-electrical model of the high critical temperature superconductor has been developed and a numerical code based on the CEA software CASTEM (Finish Elements Model) allowed to study the resistive transition (or quench) behavior of those conductor and coil. The code has been co…
issued: 2026-05-08T06:18:47.622376
language: fr
modified: 2026-05-08T06:18:47.622381

test_moissonnage_selune
type: Agent

Contribution à l'Etude des aimants supraconducteurs utilisant des matériaux supraconducteurs à haute température de transition
type: Distribution
access URL: https://theses.hal.science/tel-00904070
format: HTML
issued: 2026-05-08T06:18:47.637331
modified: 2026-05-08T06:18:47.604182