MOCVD of coated conductors on RABiTS

In a reel to reel MOCVD system YBCO films and buffer layers were deposited on textured NiW-tapes. The layers of all RTR MOCVD Coated Conductors were grown with excellent in plane and out of plane texture with FWHM of 5-7 deg. and 1.4-4 deg. respectively. The critical current densities of these films were up to 1 MA/cm2 at 77 K. MOCVD-YBCO films on MOD CeO2/LZO buffered NiW (delivered by FZ Karlsruhe) could be coated with critical current densities of up to 2 MA/cm2. The 'End to End' critical current of MOCVD-YBCO on MOD-LZO/NiW (delivered by Nexans Superconductors) was 58 A for a 700 nm thick film onto a 10 mm wide tape