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TY - UNPB AU - Venturini Delsolaro, W. AU - Aull, S. AU - Ilyina, K. AU - Rosaz, G.J. ED - Zhao, Ning ED - Poole, John ED - Schaa, Volker RW TI - SRF Material R&D for FCC J2 - Proc. of eeFACT2016, Daresbury, UK, October 24-27, 2016 C1 - Daresbury, UK T2 - ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e^+e^- Colliders T3 - 58 LA - english AB - In the context of the FCC study, CERN is re-launching R/D efforts on SRF materials to meet the challenges of a large machine: energy efficiency and investment costs. The focus is put on the development of thin superconducting films on copper substrates. Thin films have been used at CERN for large SRF systems since the LEP time, on to the LHC and now recently in the HIE-ISOLDE linac. In all these applications niobium was the superconductor of choice. Nb/Cu cavities have achieved low surface resistances at the fields of interest, and their potential is not exhausted. Q slope mechanisms are being investigated, with the aim of bringing the high field performance of coated cavities closer to the the level of bulk Nb. In parallel, other superconducting materials, like Nb3Sn and V3Si are studied as a promising alternative to Nb/Cu in the timeline of the study. In this contribution, an overview will be given of the R/D program ongoing at CERN on SRF materials for FCC, and some first results will be presented. PB - JACoW CP - Geneva, Switzerland ER -