39 KB469 KB35 KB200020242013Birlik, IsilCelik, ErdalCulha, OsmanEngel, SebastianHolzapfel, BernhardToparli, Mustafaštevilka:2letnik:47str. 153-160ISSN:1580-2949COBISSID:977066URN:URN:NBN:SI:doc-F7TIZWKZenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijemehanske lastnostisol-gel sintezasuperprevodnikitanke plastitrdotaCharacterization and determination of mechanical properties of YBCO superconducting thin films with manganese using the TFA-MOD method| Karakterizacija in določitev mehanskih lastnosti superprevodne tanke plasti YBCO z manganom po metodi TFA-MOD|The aim of this study is to determine the microstructure, superconducting and mechanical properties of YBasub{2}Cusub{3}Osub{6.56} (YBCO) and YBCO thin films with a manganese (Mn) addition. All the YBCO superconducting films (undoped and Mn-doped) were dip-coated onto (001) SrTiOsub3 (STO) single-crystal substrates with a metalorganic deposition using the trifluoroacetate (TFA-MOD) technique. The phase analysis, microstructure, surface morphologies and critical temperature (Tsubc) of the superconducting thin films were determined with an X-ray diffractometer (XRD), a scanning electron microscope (SEM), an atomic force microscope (AFM) and an inductive Tsubc measurement system. Since the main issue of this study is to determine the mechanical-property variations of the superconducting thin films with/without a Mn addition, the adhesion strength of these films on a STO substrate was tested with a Shimadzu scratch tester. Depending on the Mn addition, the critical forces of pure films increase from 56.23 mN, 58.63 mN and 60.11 mN for pure YBCO, YBCO with 0.05 g and 0.10 g of Mn. Furthermore, Young's modulus and the hardness ofthe undoped and Mn-doped YBCO thin films were measured with a CSM Berkovich nanoindenter using the load-unload sensing analysis under a 0.3 mN applied loadNamen te študije je določiti mikrostrukturo, superprevodne in mehanske lastnosti YBaspodaj{2}Cuspodaj{3}Ospodaj{6,56} tanke plasti YBCO z dodatkom mangana (Mn). Vse superprevodne plasti YBCO (nedopirane in dopirane zMn) so bile nanesene na monokristalni substrat (001) SrTiOspodaj3 s kovinoorganskim nanosom s trifluoracetatno tehniko (TFA-MOD). Fazna analiza, mikrostruktura, morfologija površine in kritična temperatura Tspodajc superprevodne tanke plasti so bile določene z rentgenskim difraktometrom (XRD), vrstičnim elektronskim mikroskopom (SEM), mikroskopom na atomsko silo (AFM) in induktivnim merilnim sistemom za Tspodajc. Ker je bila glavna naloga te študije določanje spreminjanja mehanskih lastnosti YBCO z dodatkom Mn in brez njega, je bila preizkušena adhezivnost te plasti na STO-podlago s Shimadzu preizkuševalnikom za razenje. Odvisno od dodatka Mn kritična sila v čisti plasti narašča od 56,23 mN, 58,63 mN in 60,11 mN za čisti YBCO, YBCO z 0,05 g in 0,10 g Mn. Poleg tega sta bila izmerjena tudi Youngov modul in trdota nedopirane in z Mn dopirane tanke plasti YBCO z nanomerilnikom trdote CSM Berkovich z analizo zaznavanja obremenjeno - neobremenjeno pri uporabljeni obremenitvi 0,3 mNTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije