Evaluation of load-independent microhardness values in Plateau regions of Vanadium substituted Bi-2212 ceramics

Basit Öğe Kaydı
dc.authoridTURGAY, Tahsin/0000-0003-0304-1097
dc.authoridErdem, Umit/0000-0002-0480-8176
dc.authoridUlgen, Asaf Tolga/0000-0002-7112-5607
dc.contributor.authorUlgen, Asaf Tolga
dc.contributor.authorOkur, Semih
dc.contributor.authorErdem, Umit
dc.contributor.authorPakdil, Murat
dc.contributor.authorTurgay, Tahsin
dc.contributor.authorYildirim, Gurcan
dc.date.accessioned2025-01-21T16:40:39Z
dc.date.available2025-01-21T16:40:39Z
dc.date.issued2022
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThis study reveals extensively effect of homovalent V/Bi partial replacement in Bi2.0-xVxSr2.0Ca1.1Cu2.0Oy ceramic matrix (0.00 <= x <= 0.30) on the key mechanical design performance parameters and load-independent Vickers microhardness parameters in plateau limit region by means of experimental microhardness tests and semi-empiric approaching models. It is found that the vanadium substitution level of x = 0.01 is observed to be optimum amount in the Bi-2212 crystal lattice for refinement of fundamental mechanical properties due to the enhancement in stabilization of durable tetragonal phase, surface residual compressive stress and elastic recovery mechanism. Conversely, from the replacement level of x = 0.01 onwards, the lattice strain field and stress concentration sites enhance significantly depending on the increase of microscopic structural problems, interaction problems between adjacent layers and crack-initiating flaws in Bi-2212 ceramic system. Correspondingly, stress-induced phase transformation begins to play predominant role, and excess vanadium substituted ceramic materials are easily broken at relatively smaller test load. Moreover, the models indicate that every ceramic compound shows standard indentation size effect (ISE) feature due to predominant behavior of elastic recovery in crystal structure. Hence, presence of optimum vanadium ions strengthens typical ISE characteristic behavior. Furthermore, among semi-empirical models the indentation-induced cracking (IIC) model exhibits the highest performance to inspect real microhardness values of Bi2.0-xVxSr2.0Ca1.1Cu2.0Oy ceramic compounds in the plateau limit region.
dc.description.sponsorshipBolu Abant Izzet Baysal University Scientific Research Project Coordination Unit [2016.09.05.999]
dc.description.sponsorshipThis study is partially supported by Bolu Abant Izzet Baysal University Scientific Research Project Coordination Unit (Project No: 2016.09.05.999).
dc.identifier.doi10.1088/1402-4896/ac7e00
dc.identifier.issn0031-8949
dc.identifier.issn1402-4896
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85134778493
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1088/1402-4896/ac7e00
dc.identifier.urihttps://hdl.handle.net/20.500.12587/24736
dc.identifier.volume97
dc.identifier.wosWOS:000822910800001
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.subjectBi-2212 ceramic material; homovalent substitution; elastic recovery; ISE feature; semi-empiric approach; IIC model
dc.titleEvaluation of load-independent microhardness values in Plateau regions of Vanadium substituted Bi-2212 ceramics
dc.typeArticle

Dosyalar

Koleksiyon

WOS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu