Mechanochemical synthesis and consolidation of nanostructured cerium hexaboride

dc.authorid0000-0002-8638-3756en_US
dc.contributor.authorAgaogullari, Duygu
dc.contributor.authorBalci, Ozge
dc.contributor.authorAkçamlı, Nazlı
dc.contributor.authorSuryanarayana, Challapalli
dc.contributor.authorDuman, Ismail
dc.contributor.authorOvecoglu, Mustafa Lutfi
dc.date.accessioned2021-03-20T20:12:53Z
dc.date.available2021-03-20T20:12:53Z
dc.date.issued2019
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümüen_US
dc.descriptionAgaogullari, Duygu/0000-0002-0623-5586; Balci, Ozge/0000-0001-6756-3180en_US
dc.description.abstractThis study reports on the mechanochemical synthesis (MCS) and consolidation of nanostructured CeB6 powders of high purity. CeB6 powders were prepared via MCS by milling CeO2, B2O3 and Mg powders in a high-energy ball mill for different milling times. The effects of milling time on the formation, microstructure and thermal behaviour of the synthesized powders were investigated and the optimum MCS duration was determined. Purified powders were obtained after HCl leaching by removing MgO by-product. The prepared powders were characterized by a number of techniques including X-ray diffraction, stereomicroscopy, scanning and transmission electron microscopy coupled with energy dispersive spectrometry, differential scanning calorimetry, atomic absorption spectrometry, particle size analysis, surface area analysis and vibrating sample magnetometry. The high-purity CeB6 powders having an average particle size of 86 nm were consolidated by cold-pressing followed by pressureless sintering at 1700 degrees C for 5 h. The bulk CeB6 specimen was investigated for its microstructure, density, electrical resistivity, surface roughness and some mechanical properties (microhardness and wear behaviour). The relative density, electrical resistivity, microhardness and wear rate of the bulk CeB6 were determined as 95.2% TD, 57.50 mu W.cm, 11.65 GPa and 1.46 x 10(-4) mm(3)/N.m, respectively.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [109M364]; Istanbul Technical University Scientific Research ProjectsIstanbul Technical University [33549]en_US
dc.description.sponsorshipThis study was supported by "The Scientific and Technological Research Council of Turkey (TUBITAK)" with the project title of "Synthesis of Lanthanum, Cerium and Samarium Borides by Solid-State Reaction at Room Temperature" and with the project number of 109M364. It was also funded by "Istanbul Technical University Scientific Research Projects" with the project title of "Mechanochemical Synthesis and Characterization of Some Rare-Earth Metal Borides" and with the project number of 33549. The authors would like to thank Prof. Dr. Huseyin Cimenoglu, Prof. Dr. Orhan Kamer and M.Sc. Didem Ovali Dondas for their support inmechanical tests, magnetic/electrical measurements, and thermodynamic calculations, respectively.en_US
dc.identifier.doi10.2298/PAC1901032Aen_US
dc.identifier.endpage43en_US
dc.identifier.issn1820-6131
dc.identifier.issn2406-1034
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage32en_US
dc.identifier.urihttp://doi.org/10.2298/PAC1901032A
dc.identifier.urihttps://hdl.handle.net/20.500.12885/730
dc.identifier.volume13en_US
dc.identifier.wosWOS:000462902100004en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorAkçamlı, Nazlı
dc.language.isoenen_US
dc.publisherUniv Novi Sad, Fac Technologyen_US
dc.relation.ispartofProcessing And Application Of Ceramicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectboridesen_US
dc.subjectmechanochemical synthesisen_US
dc.subjectsinteringen_US
dc.subjectmicrostructureen_US
dc.subjectmechanical propertiesen_US
dc.titleMechanochemical synthesis and consolidation of nanostructured cerium hexaborideen_US
dc.typeArticleen_US

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