Mechanical properties and oxidation behavior of spark plasma sintered (Zr,Ti)B2 ceramics with graphene nanoplatelets

Melis Kaplan Akarsu, Ipek Akin*

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: Dergiye katkıMakalebilirkişi

17 Atıf (Scopus)

Özet

This research focuses on the production and characterization of (Zr,Ti)B2 solid solution systems. The purpose of this study is to understand how solid solution formation influences the structure, mechanical properties, and oxidation resistance of ZrB2 and TiB2. For this, herein, monolithic ZrB2, TiB2, and (ZrxTi1-x)B2 solid solution systems (x = 0.25, 0.50, 0.58, 0.75) were prepared. Moreover, 1 vol% graphene nanoplatelets (GNPs) were added to two different solid solution systems (Zr0.25Ti0.75B2 and Zr0.58Ti0.42B2) without affecting the complete solid solubility of these systems. All powder mixtures were densified by spark plasma sintering at 1800 °C, under 50 MPa with 5 min holding time. The densification, oxidation behavior, microstructure, phases, and mechanical properties (Vickers hardness and indentation fracture toughness) of these samples were systematically investigated. The formation of solid solutions caused an increase in the Vickers hardness and fracture toughness of the samples. Further improvement in mechanical properties and better oxidation resistance were achieved with the addition of GNPs to the solid solution systems.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)26109-26120
Sayfa sayısı12
DergiCeramics International
Hacim46
Basın numarası16
DOI'lar
Yayın durumuYayınlandı - Kas 2020

Bibliyografik not

Publisher Copyright:
© 2020 Elsevier Ltd and Techna Group S.r.l.

Finansman

The authors acknowledge Istanbul Technical University for financial support through project number: BAP-42163 . Moreover, Melis Kaplan Akarsu is thankful to the Scientific and Technological Research Council of Turkey (TUBITAK) and Council of High Education (YOK) for 2211/C Domestic Doctoral Scholarship and 100/2000 Ph.D. Scholarship, respectively. Authors are greatly indebted to Prof. Dr. G. Goller for providing production and characterization facilities and thankful to H. Sezer, B. Yavas, and MSGSU Merlab (Dr. O. Ormanci) for their assistance with microstructural investigations, SPS experiments, and Raman analysis, respectively. The authors acknowledge Istanbul Technical University for financial support through project number: BAP-42163. Moreover, Melis Kaplan Akarsu is thankful to the Scientific and Technological Research Council of Turkey (TUBITAK) and Council of High Education (YOK) for 2211/C Domestic Doctoral Scholarship and 100/2000 Ph.D. Scholarship, respectively. Authors are greatly indebted to Prof. Dr. G. Goller for providing production and characterization facilities and thankful to H. Sezer, B. Yavas, and MSGSU Merlab (Dr. O. Ormanci) for their assistance with microstructural investigations, SPS experiments, and Raman analysis, respectively.

FinansörlerFinansör numarası
Council of High Education
MSGSU Merlab
TUBITAK
YOK
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu
Istanbul Teknik ÜniversitesiBAP-42163

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