Evaluation of key mechanical design properties and mechanical characteristic features of advanced Bi-2212 ceramic materials with homovalent Bi/Ga partial replacement: Combination of experimental and theoretical approaches

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dc.authoridTURGAY, Tahsin/0000-0003-0304-1097
dc.authoridAkkurt, Bahadir/0000-0001-7976-4887
dc.contributor.authorTurkoz, M. B.
dc.contributor.authorZalaoglu, Y.
dc.contributor.authorTurgay, T.
dc.contributor.authorOzturk, O.
dc.contributor.authorAkkurt, B.
dc.contributor.authorYildirim, G.
dc.date.accessioned2024-09-29T15:55:06Z
dc.date.available2024-09-29T15:55:06Z
dc.date.issued2019
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThis study models the variations in the key mechanical design properties and mechanical characteristic features of Ga substituted Bi-site Bi-2212 ceramics prepared within the different molar ratios of x = 0.000, 0.005, 0.010, 0.030, 0.050, 0.100 and 0.300 with the assistant of available theoretical approaches; namely, Meyer's law, proportional sample resistance, elastic/plastic deformation, modified proportional sample resistance model, Hays Kendall and indentation-induced cracking methods for the first time. The mechanical modeling parameters are gathered from the microhardness (Vickers) experimental tests performed at various applied loads interval 0.245 N-2.940 N. The results provide that the key mechanical design features improve systematically with the augmentation of trivalent Bi/Ga partial replacement level up to x = 0.05 due to the rapid decrement in the main structural problems; namely, the grain orientations, lattice strains, distortions, dislocations, grain boundary interaction/coupling problems, crack-initiating and crack-producing omnipresent flaws in the advanced Bi-2212 ceramic system. Accordingly, the optimum Ga inclusions strengthens the mechanical durability towards the applied stress due to the increased stabilization in the durable tetragonal phase. After the critical substitution amount of x = 0.05, the mechanism turns reversely, and the general mechanical characteristic features including the stiffness, mechanical durability and strength degrade remarkably. Additionally, the mechanical modeling results demonstrate that the Bi/Ga impurity leads to vary positively the quality of standard indentation size effect (ISE) feature until x = 0.05, beyond which the excess Ga additives damage seriously ISE feature of Bi-2212 inorganic compounds. Besides, the indentation-induced cracking (IIC) model is noticed as the best method to describe the true microhardness parameters of Bi/Ga substituted Bi-2212 compounds for the mechanical characterization.en_US
dc.description.sponsorshipBolu Abant Izzet Baysal University Scientific Research Project Coordination Unit [2017.09.05.1217]en_US
dc.description.sponsorshipThis study is partially supported by Bolu Abant Izzet Baysal University Scientific Research Project Coordination Unit (Project No: 2017.09.05.1217). Further, the corresponding author dedicates this study to his nephew, Ismail Okan Yildirim, on the occasion of his 7th Birthday.en_US
dc.identifier.doi10.1016/j.ceramint.2019.07.098
dc.identifier.endpage21192en_US
dc.identifier.issn0272-8842
dc.identifier.issn1873-3956
dc.identifier.issue17en_US
dc.identifier.scopus2-s2.0-85068521762en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage21183en_US
dc.identifier.urihttps://doi.org/10.1016/j.ceramint.2019.07.098
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4468
dc.identifier.volume45en_US
dc.identifier.wosWOS:000493212500015en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofCeramics Internationalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBi-2212 ceramic compounden_US
dc.subjectBi/Ga partial substitutionen_US
dc.subjectISE featureen_US
dc.subjectMechanical modelingen_US
dc.subjectIIC approachen_US
dc.titleEvaluation of key mechanical design properties and mechanical characteristic features of advanced Bi-2212 ceramic materials with homovalent Bi/Ga partial replacement: Combination of experimental and theoretical approachesen_US
dc.typeArticleen_US

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