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Effect of sintering techniques on the microstructure and mechanical properties of niobium borides

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dc.contributor.coauthorAğaoğulları, Duygu
dc.contributor.coauthorMuhaffel, Faiz
dc.contributor.coauthorÖveçoğlu, M. Lütfi
dc.contributor.coauthorÇimenoğlu, Hüseyin
dc.contributor.coauthorDuman, İsmail
dc.contributor.departmentDepartment of Chemistry
dc.contributor.kuauthorResearcher, Balcı, Özge
dc.contributor.kuauthorFaculty Member, Somer, Mehmet Suat
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.date.accessioned2024-11-09T12:39:52Z
dc.date.issued2016
dc.description.abstractThis study reports on the consolidation of niobium boride powders by cold pressing/pressureless sintering (PS, with or without Co addition) and spark plasma sintering (SPS) techniques. Niobium boride powders (containing NbB, Nb3B4 and NbB2 phases) which were mechanochemically synthesized from Nb2O5, B2O3 and Mg blends and purified by HCl leaching were used as precursor material. The effects of different sintering techniques on the consolidation behaviour, microstructure, densification rate and mechanical properties (microhardness, wear characteristics, elastic modulus, indentation response and fracture toughness) of the bulk products were investigated. PS with Co addition resulted in superior properties than those yielded after PS without Co addition and SPS. Bulk niobium boride products having relative density of 93-98%, microhardness of 24-28 GPa, wear volume loss of 2.8-4.5 x 10(-4) mm(3), elastic modulus of 508-552 GPa and fracture toughness of 4.05-4.74 MPa m(1/2) were obtained by Co (2 or 5 wt.%) activated PS at 1500 degrees C.
dc.description.fulltextYES
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue13
dc.description.openaccessYES
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuTÜBİTAK
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TÜBİTAK)
dc.description.versionAuthor's final manuscript
dc.description.volume36
dc.identifier.doi10.1016/j.jeurceramsoc.2016.05.014
dc.identifier.eissn1873-619X
dc.identifier.embargoNO
dc.identifier.filenameinventorynoIR01173
dc.identifier.issn0955-2219
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-84975449313
dc.identifier.urihttps://hdl.handle.net/20.500.14288/2138
dc.identifier.wos378449100005
dc.keywordsNiobium borides
dc.keywordsCold pressing/pressureless sintering
dc.keywordsSpark plasma sintering
dc.keywordsMicrostructure
dc.keywordsMechanical properties
dc.language.isoeng
dc.publisherElsevier
dc.relation.grantno112M470
dc.relation.ispartofJournal of the European Ceramic Society
dc.relation.urihttp://cdm21054.contentdm.oclc.org/cdm/ref/collection/IR/id/6990
dc.subjectMaterials science
dc.titleEffect of sintering techniques on the microstructure and mechanical properties of niobium borides
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorBalcı, Özge
local.contributor.kuauthorSomer, Mehmet Suat
local.publication.orgunit1College of Sciences
local.publication.orgunit2Department of Chemistry
relation.isOrgUnitOfPublication035d8150-86c9-4107-af16-a6f0a4d538eb
relation.isOrgUnitOfPublication.latestForDiscovery035d8150-86c9-4107-af16-a6f0a4d538eb
relation.isParentOrgUnitOfPublicationaf0395b0-7219-4165-a909-7016fa30932d
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