Metal matrix to ceramic matrix transition via feedstock processing of SPS titanium composites alloyed with high silicone content

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dc.contributor.authorTkachenko, Serhiics
dc.contributor.authorČížek, Jancs
dc.contributor.authorMušálek, Radekcs
dc.contributor.authorDvořák, Karelcs
dc.contributor.authorSpotz, Zdeněkcs
dc.contributor.authorMontufar Jimenez, Edgar Benjamincs
dc.contributor.authorChráska, Tomášcs
dc.contributor.authorKřupka, Ivancs
dc.contributor.authorČelko, Ladislavcs
dc.coverage.issue1cs
dc.coverage.volume764cs
dc.date.accessioned2020-08-04T11:03:39Z
dc.date.available2020-08-04T11:03:39Z
dc.date.issued2018-06-15cs
dc.description.abstractTitanium silicides are promising candidates for use as a reinforcement in advanced light-weight composites due to their excellent mechanical properties and oxidation resistance at high temperatures, sufficient wear resistance, and high chemical stability in various corrosion environments. Direct in-situ synthesis of such composites from titanium-silicon (Ti-Si) powder feedstock by spark plasma sintering (SPS) was used in this study with a particular attention on the effect of the powder processing parameters (blending, co-milling, milling blending) on the microstructure formation and mechanical properties of the sintered composites. As opposed to the previous silicide-reinforced Ti studies, this was done for high silicone content (20 wt%). It was found that, despite the powders initial identical composition, the microstructure and phase content of the compacts varied significantly with the used powder fabrication route. Taking advantage of this, composites ranging from relatively soft metal-matrix (52 vol% metallic Ti; using non-milled Ti and coarse or fine-milled Si) to hard ceramic-matrix (11 vol% metallic Ti, using fine-dispersed joint-milled mixture of Ti and Si) were obtained. Due to in-situ formation of various TiSi2, TiSi, Ti5Si4 and Ti5Si3 silicide reinforcement phases contents with high hardness and stiffness, all the sintered composites showed superior hardness and wear resistance (an increase as much as 44) in comparison to pure Ti. Importantly, hardness and elastic modulus of intermediate compounds TiSi2, TiSi, Ti5Si4 and Ti5Si3 were measured using instrumented indentation technique for the first time and are presented in the paper.en
dc.formattextcs
dc.format.extent776-788cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationJournal of Alloys and Compounds. 2018, vol. 764, issue 1, p. 776-788.en
dc.identifier.doi10.1016/j.jallcom.2018.06.086cs
dc.identifier.issn0925-8388cs
dc.identifier.other149203cs
dc.identifier.urihttp://hdl.handle.net/11012/173315
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofJournal of Alloys and Compoundscs
dc.relation.urihttps://doi.org/10.1016/j.jallcom.2018.06.086cs
dc.rights(C) Elseviercs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0925-8388/cs
dc.subjectIntermetallic-strengthened compositesen
dc.subjectTitanium silicidesen
dc.subjectRapid sinteringen
dc.subjectNanoindentationen
dc.subjectWearen
dc.titleMetal matrix to ceramic matrix transition via feedstock processing of SPS titanium composites alloyed with high silicone contenten
dc.title.alternativeMetal matrix to ceramic matrix transition via feedstock processing of SPS titanium composites alloyed with high silicone contentcs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionsubmittedVersionen
sync.item.dbidVAV-149203en
sync.item.dbtypeVAVen
sync.item.insts2020.09.02 13:55:02en
sync.item.modts2020.09.02 13:39:40en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Charakterizace materiálů a pokročilé povlaky 1-08cs
thesis.grantorVysoké učení technické v Brně. . Ústav fyziky plazmatu AV ČRcs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Sdílená laboratoř RP1cs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Charakterizace materiálů a pokročilé povlaky 1-06cs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Technologie hmot a dílců AdMaScs
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Charakterizace materiálů a pokročilé povlaky 1-08
Charakterizace materiálů a pokročilé povlaky 1-06
Sdílená laboratoř RP1
Technologie hmot a dílců AdMaS