Change in transition balance between durable tetragonal phase and stress-induced phase of cobalt surface-layered in Bi-2212 materials by semi-empirical mechanical models

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dc.authoridUlgen, Asaf Tolga/0000-0002-7112-5607
dc.authoridMercan, Ali/0000-0003-4495-3674
dc.authoridErdem, Umit/0000-0002-0480-8176
dc.contributor.authorErdem, Umit
dc.contributor.authorYildirim, Gurcan
dc.contributor.authorTurkoz, Mustafa Burak
dc.contributor.authorUlgen, Asaf Tolga
dc.contributor.authorMercan, Ali
dc.date.accessioned2025-01-21T16:36:30Z
dc.date.available2025-01-21T16:36:30Z
dc.date.issued2023
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThis study has indicated the positive effect of sintering temperature on the mechanical durability, strength, critical stress, deformation degrees, durable tetragonal phase, failure and fracture by fatigue, and mechanical characteristic behavior to the applied test loads for the Co surface-layered Bi-2212 ceramic materials produced by the standard solid-state reaction method. The sintering mechanism has been used as the driving force for the penetration of cobalt ions in the Bi-2212 ceramic matrix. The microindentation hardness test measurements have been performed at the load intervals 0.245 N-2.940 N. The experimental findings have also been examined by the six different semi-empirical mechanical and indentation-induced cracking models. It has been found that all the mechanical performance parameters are improved considerably with increasing the diffusion sintering temperature up to 650 degrees C. On this basis, the Co surface-layered Bi-2212 sample produced at the sintering temperature of 650 degrees C has been observed to improve dramatically the mechanical durability and resistance to the applied test loads as a consequence of the formation of new force barrier regions, surface residual compressive stress regions, and slip systems in the Bi-2212 ceramic system. Similarly, the optimum sintering temperature has extensively enhanced the elastic recovery mechanism, critical stress values, and deformation degree levels, stored internal strain, and crack surface energy through the Bi-2212 ceramic materials. Accordingly, it has been noted that the best sample produced at 650 degrees C is more hardly broken than the other ceramics. Namely, the optimum sintering temperature has decreased the sensitivity to the applied test loads as a result of delaying the beginning of the plateau limit regions. On the other hand, all the mechanism has been found to reverse completely depending on the excess sintering temperature. Lastly, the indentation-induced cracking model has been found to exhibit the closest results to the original Vickers microhardness parameters in the plateau limit regions.
dc.description.sponsorshipKirikkale University Research Fund [2022/045]
dc.description.sponsorshipThe authors would like to express their gratitude to Kirikkale University Research Fund for its financial support in spectral analysis. Project Numbers: 2022/045.
dc.identifier.doi10.1088/1402-4896/acdb04
dc.identifier.issn0031-8949
dc.identifier.issn1402-4896
dc.identifier.issue7
dc.identifier.scopus2-s2.0-85163587893
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1088/1402-4896/acdb04
dc.identifier.urihttps://hdl.handle.net/20.500.12587/24316
dc.identifier.volume98
dc.identifier.wosWOS:001005598300001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIop Publishing Ltd
dc.relation.ispartofPhysica Scripta
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241229
dc.subjectCo diffusion; crystallization stability; slip systems; hardness; mechanical modelling; Bi-2212 main matrix
dc.titleChange in transition balance between durable tetragonal phase and stress-induced phase of cobalt surface-layered in Bi-2212 materials by semi-empirical mechanical models
dc.typeArticle

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