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Influence of Sintering Atmosphere on the Crystal Structure, Microstructure, Dielectric and Optical Properties of BaTi1-xSnxO3 (x = 0, 0.05 and 0.1) Ceramics
dc.creator | Marković, Smilja | |
dc.creator | Veselinović, Ljiljana | |
dc.creator | Garaj, Andrej | |
dc.creator | Cvjetićanin, Nikola | |
dc.creator | Škapin, Srečo Davor | |
dc.creator | Uskoković, Dragan | |
dc.date.accessioned | 2017-06-10T15:45:07Z | |
dc.date.issued | 2015 | |
dc.identifier.uri | https://dais.sanu.ac.rs/123456789/828 | |
dc.description.abstract | Due to specific dielectric and ferroelectric properties, functional ceramics based on barium titanate (BaTiO3) have found application in semiconductor industries. Appropriate electrical properties of barium titanate-based materials, such as magnitude of relative dielectric permittivity and the Curie temperature, can be achieved by varying sintering conditions (which influenced ceramics’ microstructure) and/or by doping with various cations. In this study, we investigated the influence of sintering atmosphere (air and argon) on the crystal structure, microstructure, dielectric and optical properties of barium titanate-stannate (BTS; BaTi1-xSnxO3) ceramics. The BTS powders (with x = 0, 0.05 and 0.1; denoted BT, BTS5 and BTS 10, respectively) were synthesized by the solid-state reaction technique. The powders were subsequently uniaxially pressed (P = 240 MPa) into cylindrical compacts (ø 6 mm and h ≈ 2 mm) and sintered in SETSYS TMA (Setaram Instrumentation, Caluire, France). Sintering experiments were performed at a heating rate of 10 °/min up 1420 °C and with a dwell time of 2 hours; to determine the influence of sintering atmosphere, two sets of experiments were performed: (1) in air, and (2) in Ar. During sintering, the shrinkage was recorded in the axial (h) direction. The crystal structure of the BTS ceramics was studied at room temperature by X-ray diffractometry and Raman spectroscopy. The microstructure and chemical (Ti/Sn) composition were examined by SEM–EDS methods. The electrical measurements were made in air, at 1 kHz using a Wayne Kerr Universal Bridge B224; the measurements were done in cooling, from 160 to 20 °C. For optical characterization UV-Vis diffusive reflectance and photoluminescence spectroscopy were employed. A profound effect of an argon atmosphere on the examined properties of the sintered BTS ceramics has been found; the mostly important is an increase of the magnitude of relative dielectric permittivity. | en |
dc.format | (2015) 14-14 | |
dc.format | application/pdf | |
dc.language | en | |
dc.publisher | Belgrade : Materials Research Society of Serbia | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45004/RS// | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | Programme and The Book of Abstracts / Seventeenth Annual Conference YUCOMAT 205, Herceg Novi, August 31– September 4, 2015 | en |
dc.subject | barium titanate-stannate | |
dc.subject | semiconductors | |
dc.subject | sintering | |
dc.title | Influence of Sintering Atmosphere on the Crystal Structure, Microstructure, Dielectric and Optical Properties of BaTi1-xSnxO3 (x = 0, 0.05 and 0.1) Ceramics | en |
dc.type | conferenceObject | |
dc.rights.license | BY-NC-ND | |
dcterms.abstract | Веселиновић, Љиљана; Марковић, Смиља; Ускоковић, Драган; Шкапин, Сречо Давор; Цвјетићанин, Никола; Гарај, Aндреј; | |
dc.citation.spage | 14 | |
dc.citation.epage | 14 | |
dc.type.version | publishedVersion | |
dc.identifier.fulltext | https://dais.sanu.ac.rs/bitstream/id/21785/825.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_dais_828 |