Effect of annealing ambient conditions on crack formation mechanisms of bulk Bi-2212 ceramic systems

dc.authoridAkkurt, Bahadir/0000-0001-7976-4887
dc.authoridTURGAY, Tahsin/0000-0003-0304-1097
dc.authoridErdem, Umit/0000-0002-0480-8176
dc.contributor.authorErdem, U.
dc.contributor.authorAkkurt, B.
dc.contributor.authorUlgen, A. T.
dc.contributor.authorZalaoglu, Y.
dc.contributor.authorTurgay, T.
dc.contributor.authorYildirim, G.
dc.date.accessioned2025-01-21T16:37:52Z
dc.date.available2025-01-21T16:37:52Z
dc.date.issued2021
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThis study paves way to examine the influence of different annealing conditions (temperature range of 830-850 degrees C and duration intervals 24-48 h) on the fundamental mechanical performance and characteristic quantities of polycrystalline Bi2.1Sr2.0Ca1.1Cu2.0Oy (Bi-2212) superconducting ceramics by means of Vickers microindentation hardness tests at the various indentation test loads (0.245 N <= F <= 2.940 N) and some available theoretical approaches. The annealing ambient plays an important role on the operable slip systems and crystal quality. The bulk Bi-2212 superconducting compound prepared at 840 degrees C and 24 h is found to be the least sensitive to the applied test load due to less structural problems, voids, cracks and stress raisers in the crystal system. Conversely, the excess annealing ambient complicates remarkably the control of crack growth size and velocity. Thus, relatively lower load can lead to the formation of crack and acceleration of crack rate up to the critical size and terminal velocity. The samples exhibit the typical indentation size effect (ISE) behavior as a result of predominant character of elastic recovery mechanism. As for the theoretical examination in the saturation limit regions, the indentation-induced cracking (IIC) model wins the comparison as it provides the most accurate results to the experimental findings.
dc.description.sponsorshipSirnak University Scientific Research Project Coordination Unit [2019]
dc.description.sponsorshipThis work was supported by the Sirnak University Scientific Research Project Coordination Unit [Project No: 2019.FNAP.06.02.01].
dc.identifier.doi10.1080/21870764.2021.1952746
dc.identifier.endpage1227
dc.identifier.issn2187-0764
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85110929334
dc.identifier.scopusqualityQ2
dc.identifier.startpage1214
dc.identifier.urihttps://doi.org/10.1080/21870764.2021.1952746
dc.identifier.urihttps://hdl.handle.net/20.500.12587/24558
dc.identifier.volume9
dc.identifier.wosWOS:000674800300001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofJournal of Asian Ceramic Societies
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241229
dc.subjectBi-2212 ceramic system; critical crack size; terminal velocity transcrystalline regions; ISE behavior; IIC model
dc.titleEffect of annealing ambient conditions on crack formation mechanisms of bulk Bi-2212 ceramic systems
dc.typeArticle

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