Application and comparison of theoretical approaches to mechanical properties of bulk YBCO-358 ceramic superconductors

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dc.contributor.authorBulut, Fatih
dc.date.accessioned2025-03-23T19:11:55Z
dc.date.available2025-03-23T19:11:55Z
dc.date.issued2024
dc.departmentSinop Üniversitesi
dc.description.abstractCo nanopowder substituted YBCO-358 (Y3Ba5Cu8-xCoxO18-δ) bulk ceramics were prepared with weight ratios of x=0, 0.05, 0.10 and 0.15 using the SSR (Solid State Reaction) method in tube furnace at oxygen (O2) atmosphere. The impact of partially replacing Cu with Co impurities on the load-independent (or true) microhardness parameters of YBCO-358 have been examined using five theoretical models: Meyer's law (ML), Hays-Kendall (HK), elastic/plastic deformation (EPD), proportional sample resistance (PSR) and the last is indentation-induced cracking (IIC). These models were applied to results that obtained by experimental microhardness tests conducted at various loads. Vicker’s Microhardness analysis shown that each samples has reverse indentation size effect (RISE). The results showed that partial Co nanoparticle doping affected the mechanical behavior/properties of produced YBCO-358 ceramics due to an enhance in crystal structural defects. Additionally, the degradation of the crystal structure led to a reduce in the typical RISE behavior of YBCO-358 superconducting ceramics. It has found that the IIC model was the best fit as it was the only one that produced results close to the saturation point, while the other models did not.
dc.identifier.doi10.17714/gumusfenbil.1462251
dc.identifier.endpage991
dc.identifier.issn2146-538X
dc.identifier.issue4
dc.identifier.startpage980
dc.identifier.trdizinid1286185
dc.identifier.urihttps://doi.org/10.17714/gumusfenbil.1462251
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1286185
dc.identifier.urihttps://hdl.handle.net/11486/3701
dc.identifier.volume14
dc.indekslendigikaynakTR-Dizin
dc.institutionauthorBulut, Fatih
dc.language.isoen
dc.relation.ispartofGümüşhane Üniversitesi Fen Bilimleri Dergisi
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_TR_20250323
dc.subjectYBCO
dc.subjectMicrohardness modelling
dc.subjectSolid state reaction method
dc.subjectVicker’s
dc.titleApplication and comparison of theoretical approaches to mechanical properties of bulk YBCO-358 ceramic superconductors
dc.typeArticle

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