Thermal analysis study of Bi2Sr2Ca2Cu3-xErxO10+? glass-ceramic system

Basit Öğe Kaydı
dc.authoridAksan, Mehmet Ali/0000-0001-9465-0319;
dc.authorwosidAksan, Mehmet Ali/AAA-4187-2021
dc.authorwosidAksan, Mehmet Ali/AAE-8854-2021
dc.authorwosidbalci, yakup/AAA-4174-2021
dc.contributor.authorAksan, MA
dc.contributor.authorYakinci, ME
dc.contributor.authorBalci, Y
dc.date.accessioned2024-08-04T20:14:56Z
dc.date.available2024-08-04T20:14:56Z
dc.date.issued2005
dc.departmentİnönü Üniversitesien_US
dc.description.abstractWe have fabricated glasses in the Bi-2223 HTc superconductor system with Bi2Sr2Ca2Cu3-xErxO10+delta nominal composition, where x=0.5 and 1.0, by the glass-ceramic technique. Using an analysis developed for non-isothermal crystallization studies, information on some aspects of crystallization temperature and thermal properties has been obtained. The crystallization studies were made using DTA with several uniform rates. The calculations of crystallization activation energies, E-a, and the Avrami parameters, n, were made based on the non-isothermal kinetic theory of Kissinger and the Ozawa's equations. The DTA data of the samples showed that the first crystallization temperature, T-x1, increases and the second crystallization temperature, T-x2, decreases by increasing the Er concentration. This suggests that the Er substitution had significant effect on the glassification of the BSCCO material due to change on the surface nucleation and increased ionic activities at high temperature region. The activation energy for crystallization, E., of the samples was also showed an increase at high Er concentration case. However, the Avrami parameter, n, decreased from 2.5 to 1.7 for x=0.5 and 1.0 samples, respectively. This suggests that the growth mechanism is diffusion-controlled and three-dimensional parabolic growth takes place near the first crystallization temperature. The oxidization rates and the activation barrier for oxygen out-diffusion process, E, was calculated using the TG data. It was found that the total mass gain in the x=0.5 sample is comparably smaller than that of the x=1.0 sample. This shows that the oxygen absorption of the x=1.0 sample is faster than the x=0.5 sample, leading to increase in the oxidization rate in the x=1.0 material.en_US
dc.identifier.doi10.1007/s10973-005-0801-8
dc.identifier.endpage423en_US
dc.identifier.issn1388-6150
dc.identifier.issn1588-2926
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-23844475123en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage417en_US
dc.identifier.urihttps://doi.org/10.1007/s10973-005-0801-8
dc.identifier.urihttps://hdl.handle.net/11616/94063
dc.identifier.volume81en_US
dc.identifier.wosWOS:000231218300028en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal of Thermal Analysis and Calorimetryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAvrami parameteren_US
dc.subjectcrystallization activation energyen_US
dc.subjectDTAen_US
dc.subjectHTc superconductivityen_US
dc.subjectoxidization ratesen_US
dc.subjectoxygen out-diffusion processen_US
dc.subjectTGen_US
dc.titleThermal analysis study of Bi2Sr2Ca2Cu3-xErxO10+? glass-ceramic systemen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu