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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.contributor.authors Turkoz, MB; Zalaoglu, Y; Turgay, T; Ozturk, O; Akkurt, B; Yildirim, G;
dc.date.accessioned 2020-02-25T07:59:24Z
dc.date.available 2020-02-25T07:59:24Z
dc.date.issued 2019
dc.identifier.citation Turkoz, MB; Zalaoglu, Y; Turgay, T; Ozturk, O; Akkurt, B; Yildirim, G; (2019). 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. CERAMICS INTERNATIONAL, 45, 21192-21183
dc.identifier.issn 0272-8842
dc.identifier.uri https://doi.org/10.1016/j.ceramint.2019.07.098
dc.identifier.uri https://hdl.handle.net/20.500.12619/45557
dc.description.abstract This 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.
dc.language English
dc.publisher ELSEVIER SCI LTD
dc.subject Materials Science
dc.title 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
dc.type Article
dc.identifier.volume 45
dc.identifier.startpage 21183
dc.identifier.endpage 21192
dc.contributor.department Sakarya Üniversitesi/Sanat Tasarım Ve Mimarlık Fakültesi/Mimarlık Bölümü
dc.contributor.saüauthor Turğay, Tahsin
dc.contributor.saüauthor Öztürk, Oğuzhan
dc.relation.journal CERAMICS INTERNATIONAL
dc.identifier.wos WOS:000493212500015
dc.identifier.doi 10.1016/j.ceramint.2019.07.098
dc.identifier.eissn 1873-3956
dc.contributor.author M. B. Turkoz
dc.contributor.author Y. Zalaoglu
dc.contributor.author Turğay, Tahsin
dc.contributor.author Öztürk, Oğuzhan
dc.contributor.author B. Akkurt
dc.contributor.author G. Yildirim


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