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URLhttps://doi.org/10.18429/JACoW-IPAC2023-WEPA150
TitleDevelopment and characterisation of advanced coatings for high energy physics applications
Authors
  • A. Perez Fontenla, C. Pereira Carlos, E. Rodriguez-Castro, G. Rosaz
    European Organization for Nuclear Research
  • S. Leith
    University Siegen
  • A. Moros, S. Pfeiffer
    European Organization for Nuclear Research (CERN)
AbstractThe Future Circular Collider (FCC) study develops the technologies for next generation high performance particle colliders and accelerating structures. It places high requirements on the performance of Superconducting Radio Frequency (SRF) cavities used to accelerate the particle beam. While niobium-coated copper cavities are being considered for FCC-ee, alternative superconducting materials are investigated in view of reducing considerably the energy consumption of such a large machine. Nb3Sn, an A-15 intermetallic type II superconductor, is one of those potential candidates. However, due to its brittle nature, the only way to produce an Nb3Sn SRF cavity consists of elaborating it as a thin film using, for example, magnetron sputtering to coat copper-based cavities. The latest developments at CERN on Nb3Sn films production by DC-Magnetron Sputtering (DC-MS) and bipolar High Power Impulse Magnetron Sputtering (HiPIMS) are presented, together with a comprehensive microstructural and mechanical characterisation of the films. Special attention is paid to the role of interlayers to avoid Cu diffusion during the high temperature reaction and to the influence of the deposition method and parameters on the film superconducting performance.
Paperdownload: WEPA150.pdf
CiteBibTeX, LaTeX, Text/Word, RIS, EndNote
Conference14th International Particle Accelerator Conference
Series
LocationVenice, Italy
Date07-12 May 2023
PublisherJACoW Publishing, Geneva, Switzerland
Editorial BoardRalph Assmann - Deutsches Elektronen-Synchrotron DESY Peter McIntosh - Science and Technology Facilities Council (STFC/DL/ASTeC) Giovanni Bisoffi - Istituto Nazionale di Fisica Nucleare (INFN/LNL) Alessandro Fabris - Elettra-Sincrotrone Trieste S.C.p.A. Ivan Andrian - Elettra-Sincrotrone Trieste S.C.p.A. Giulia Vinicola - Istituto Nazionale di Fisica Nucleare (INFN/LNF)
Online ISBN978-3-95450-231-8
Online ISSN2673-5490
Received30 April 2023
Revised20 June 2023
Accepted20 June 2023
Issued26 September 2023
DOI10.18429/JACoW-IPAC2023-WEPA150
Pages3006-3009