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.authorid0000-0002-0480-8176en_US
dc.authorid0000-0002-5177-3703en_US
dc.authorid0000-0002-4127-7650en_US
dc.authorid0000-0002-7112-5607en_US
dc.authorid0000-0003-4495-3674en_US
dc.contributor.authorErdem, Ümit
dc.contributor.authorYıldırım, Gürcan
dc.contributor.authorTürköz, Mustafa Burak
dc.contributor.authorÜlgen, Asaf Tolga
dc.contributor.authorMercan, Ali
dc.date.accessioned2023-08-08T08:03:04Z
dc.date.available2023-08-08T08:03:04Z
dc.date.issued2023en_US
dc.departmentBAİBÜ, Mühendislik Fakültesi, Makine Mühendisliği Bölümüen_US
dc.descriptionThe authors would like to express their gratitude to Kirikkale University Research Fund for its financial support in spectral analysis. Project Numbers: 2022/045.en_US
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.en_US
dc.description.sponsorshipKirikkale University Research Fund [2022/045]en_US
dc.identifier.citationErdem, Ü., Yildirim, G., Turkoz, M. B., Ulgen, A. T., & Mercan, A. (2023). 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. Physica Scripta.en_US
dc.identifier.doi10.1088/1402-4896/acdb04
dc.identifier.endpage16en_US
dc.identifier.issn1402-4896
dc.identifier.issn0031-8949
dc.identifier.issue7en_US
dc.identifier.scopus2-s2.0-85163587893en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage1en_US
dc.identifier.urihttp://dx.doi.org/10.1088/1402-4896/acdb04
dc.identifier.urihttps://hdl.handle.net/20.500.12491/11454
dc.identifier.volume98en_US
dc.identifier.wosWOS:001005598300001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorYıldırım, Gürcan
dc.language.isoenen_US
dc.publisherIOP Publishing Ltden_US
dc.relation.ispartofPhysica Scriptaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCo Diffusionen_US
dc.subjectCrystallization Stabilityen_US
dc.subjectSlip Systemsen_US
dc.subjectCeramic Materialsen_US
dc.subjectHardnessen_US
dc.subjectMicrohardnessen_US
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 modelsen_US
dc.typeArticleen_US

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