Evolution of residual compressive stress regions in Co-diffused Bi-2212 engineering ceramics with annealing temperature

Basit Öğe Kaydı
dc.authoridErdem, Umit/0000-0002-0480-8176
dc.contributor.authorMercan, Ali
dc.contributor.authorErdem, Umit
dc.contributor.authorUlgen, Asaf Tolga
dc.contributor.authorGulen, Mahir
dc.contributor.authorTurkoz, Mustafa Burak
dc.contributor.authorTurgay, Tahsin
dc.contributor.authorYildirim, Gurcan
dc.date.accessioned2025-01-21T16:40:49Z
dc.date.available2025-01-21T16:40:49Z
dc.date.issued2024
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThe role of diffusion annealing temperatures intervals 600-850 degrees C on durable tetragonal phase, surface morphology, and main mechanical performance parameters of Co surface-layered Bi2.1Sr2.0Ca1.1Cu2.0Oy (Bi-2212) samples has extensively been examined by scanning electron microscopy (SEM), Electron Dispersive X-ray (EDX) technique and microindentation Vickers hardness (Hv) tests. The experimental findings have shown that every material prepared has presented different composition distributions on the specimen surface as a consequence of the successful production of materials. Besides, the mechanical characteristics and durable tetragonal phase have been noted to enhance significantly with the enhancement of annealing temperature up to 650 degrees C due to the formation of new slip systems, surface residual compressive stress regions, connections between grains, and chemical bonding between the foreign and host atoms. Further, the optimum temperature has led to the reduction in stored internal strain energy and degree of granularity in the Co-diffused Bi-2212 crystal system. In this respect, the sample with the least sensitive to the external forces has exhibited the highest elastic modulus of 0.5445 GPa, shear modulus of 17.8515 GPa, yield strength of 181.5 MPa, and resilience of 369.1 MPa under 0.295 N. Accordingly, the cracks and dislocations have preferred to propagate throughout the transcrystalline regions, and crack growth size was easily controlled. Similarly, the saturation limit region has begun at relatively higher applied test load magnitudes. Conversely, the excess annealing temperature has caused the increase in the agglomeration of cobalt ions throughout the intergranular regions. Correspondingly, the activation of stress-induced phase transformation has been triggered seriously. Bi-2212 ceramic compound exposed to the optimum diffusion annealing temperature exhibits the most uniform surface view and crystalline quality with the densest surface morphology and the largest particle distributions and orientations. Moreover, every material studied has perfectly presented the characteristic indentation size effect behavior. The examination of granularity degree depending on elasticity moduli has verified all the Hv test results and discussions. All in all, this study guides the use of engineering ceramics in more application areas due to the increase in their service life.
dc.identifier.doi10.1007/s10854-024-13468-6
dc.identifier.issn0957-4522
dc.identifier.issn1573-482X
dc.identifier.issue26
dc.identifier.scopus2-s2.0-85203876056
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1007/s10854-024-13468-6
dc.identifier.urihttps://hdl.handle.net/20.500.12587/24775
dc.identifier.volume35
dc.identifier.wosWOS:001312337000003
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Materials Science-Materials In Electronics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241229
dc.titleEvolution of residual compressive stress regions in Co-diffused Bi-2212 engineering ceramics with annealing temperature
dc.typeArticle

Dosyalar

Koleksiyon

WOS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu