Unveiling the reaction products in heat treated Si3N4-Ti joined ceramics by transmission electron microscopy

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dc.contributor.authorTunçkan, Orkun
dc.contributor.authorYurdakul, Hilmi
dc.contributor.authorTuran, Servet
dc.date.accessioned2021-02-19T21:16:50Z
dc.date.available2021-02-19T21:16:50Z
dc.date.issued2019
dc.departmentALKÜ
dc.descriptionTuran, Servet/0000-0002-7322-3091
dc.description.abstractJoining is a crucial process for the production of complex-shaped advanced engineering materials. Deep understanding of ceramic-metal interfaces during joining or following heat-treatment steps is therefore of important concern in designing the new systems. Capacitor discharge joining (CDJ) method was firstly carried out to compose the ceramic-metal joint material by silicon nitride (Si3N4)-titanium (Ti) constituents. Afterwards, heat treatment was performed on the Si3N4-Ti joints in air atmosphere at 1000 degrees C temperature to reveal the interface reactions and phases. Reaction layer that occurred between the Si3N4 and Ti interfaces and new phase formations were examined by transmission electron microscopy (TEM)-based various imaging and chemical analysis techniques. Electron transparent samples for TEM characterization were prepared by focused ion beam (FIB) milling and lifting method. Based on the detailed TEM results, Si and N diffusion arising from the Si3N4 ceramic was observed towards Ti metal foil side and further interacted with Ti atoms. The upshot of current diffusion was that Ti3N2 reaction layer with 50 nm thickness was formed at the interface while titanium silicon nitride (Ti6Si3N) matrix phase including dendritic-shaped Ti2N grains occurred in the Ti interlayer. It is believed that our TEM-based microscopy results not only provide the knowledge on ceramic-metal joint materials by CDJ method, but also contribute new insights on the development of various new joint systems.
dc.description.sponsorshipAnadolu University (Eskisehir, Turkey)Anadolu University [BAP-030217]
dc.description.sponsorshipThe authors would like to thank to Anadolu University (Eskisehir, Turkey) for financial support by BAP-030217 project. We would like to also give our gratitude to UNAM Laboratories of Bilkent University (Ankara, Turkey) for FIB analysis.
dc.identifier.doi10.1007/s40145-019-0330-8
dc.identifier.endpage508en_US
dc.identifier.issn2226-4108
dc.identifier.issn2227-8508
dc.identifier.issue4en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage500en_US
dc.identifier.urihttps://doi.org/10.1007/s40145-019-0330-8
dc.identifier.urihttps://hdl.handle.net/20.500.12868/566
dc.identifier.volume8en_US
dc.identifier.wosWOS:000517128600004
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor0-belirlenecek
dc.language.isoen
dc.publisherSpringeropen
dc.relation.ispartofJournal of Advanced Ceramics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectcapacitor discharge joining (CDJ)
dc.subjectSi3N4
dc.subjectTi
dc.subjecttransmission electron microscopy (TEM)
dc.titleUnveiling the reaction products in heat treated Si3N4-Ti joined ceramics by transmission electron microscopy
dc.typeArticle

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