Publication:
Spark plasma sinterability and thermal diffusivity of TiN ceramics with graphene additive

dc.contributor.coauthorMoghanlou, Farhad Sadegh
dc.contributor.coauthorVajdi, Mohammad
dc.contributor.coauthorJafarzadeh, Haleh
dc.contributor.coauthorAhmadi, Zohre
dc.contributor.coauthorSharifianjazi, Fariborz
dc.contributor.coauthorAsl, Mehdi Shahedi
dc.contributor.coauthorMohammadi, Mohsen
dc.contributor.departmentKUYTAM (Koç University Surface Science and Technology Center)
dc.contributor.kuauthorMotallebzadeh, Amir
dc.contributor.schoolcollegeinstituteResearch Center
dc.date.accessioned2024-11-09T23:48:13Z
dc.date.issued2021
dc.description.abstractThe effects of adding graphene nano-platelets (6 wt%) on the microstructure and thermal diffusivity and conductivity of TiN-based ceramics were investigated. Two samples, a monolithic TiN, and a graphene-added TiN ceramics were fabricated using spark plasma sintering technique at 1900 degrees C for 7 min under 40 MPa. The microstructure of the polished and fractured surfaces of both samples was analyzed by scanning electron microscopy. Adding graphene resulted in a 2% reduction in the relative density, but led to obtaining a fine-grained microstructure. The consumption of graphene nano-additive during the sintering, through the reduction of surface oxide layers of TiN matrix (TiO2), and consequently, the formation of titanium carbonitride (TiN0.8C0.2) were disclosed by X-ray diffraction analysis. The measurement of the thermal diffusivity was done using the laser flash technique. The TiN-6 wt% graphene sample obtained lower thermal conductivity compared to the monolithic TiN, which can be attributed to the smaller grain size of the graphene-added sample.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue7
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canada (NSERC) [RGPIN-2016-04221]
dc.description.sponsorshipMcCain Foundation through the McCain Foundation Postdoctoral Fellowship in Innovation program Mohsen Mohammadi acknowledges the funding received from the Natural Sciences and Engineering Research Council of Canada (NSERC) Grant No. RGPIN-2016-04221. Mehdi Shahedi Asl thanks the McCain Foundation for providing enough funding through the McCain Foundation Postdoctoral Fellowship in Innovation program to conduct this work.
dc.description.volume47
dc.identifier.doi10.1016/j.ceramint.2020.12.152
dc.identifier.eissn1873-3956
dc.identifier.issn0272-8842
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-85098211451
dc.identifier.urihttps://doi.org/10.1016/j.ceramint.2020.12.152
dc.identifier.urihttps://hdl.handle.net/20.500.14288/14256
dc.identifier.wos623522100001
dc.keywordsNon-oxide ceramics
dc.keywordsTitanium nitride
dc.keywordsGraphene nano-platelets
dc.keywordsMicrostructure
dc.keywordsThermal conductivity
dc.language.isoeng
dc.publisherElsevier Sci Ltd
dc.relation.ispartofCeramics International
dc.subjectMaterials science
dc.subjectCeramics
dc.titleSpark plasma sinterability and thermal diffusivity of TiN ceramics with graphene additive
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorMotallebzadeh, Amir
local.publication.orgunit1Research Center
local.publication.orgunit2KUYTAM (Koç University Surface Science and Technology Center)
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