Comparative investigation of the properties of graphene nanoplatelet reinforced titanium diboride and niobium diboride ceramics

Ipek Akin; Burak Cagri Ocak; Melis Kaplan Akarsu; Onuralp Yucel; Filiz Sahin; Gultekin Goller

doi:10.1016/j.ijrmhm.2021.105761

Comparative investigation of the properties of graphene nanoplatelet reinforced titanium diboride and niobium diboride ceramics

Ipek Akin^*, Burak Cagri Ocak, Melis Kaplan Akarsu, Onuralp Yucel, Filiz Sahin, Gultekin Goller

^*Bu çalışma için yazışmadan sorumlu yazar

Metalurji ve Malzeme Müh.Böl.

Istanbul Technical University

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

2 Atıf (Scopus)

Özet

In this study, the effect of GNP concentration on the mechanical properties of spark plasma sintered TiB₂ and NbB₂ ceramics was investigated. GNP reinforced TiB₂ and NbB₂ specimens were aimed to produce with nearly full densification. Herein, SEM investigations, Raman analysis, and oxidation behavior of the samples were reported. GNP addition into the TiB₂ and NbB₂ matrices showed a different effect on various properties of the composites. GNP loading tends to enhance densification by removing native oxides of both TiB₂ and NbB₂ matrices. GNPs were more effective in the oxygen removal mechanism for TiB₂ composites than NbB₂. The highest relative density was obtained for TiB₂-GNP and NbB₂-GNP composites as 98.6% with 7 vol% and 5 vol% GNP additions, respectively. The Vickers microhardness decreased with increasing GNPs loading for both matrices. NbB₂-GNP composites possessed higher fracture toughness and better oxidation resistance than TiB₂-GNP composites.

Orijinal dil	İngilizce
Makale numarası	105761
Dergi	International Journal of Refractory Metals and Hard Materials
Hacim	103
DOI'lar	https://doi.org/10.1016/j.ijrmhm.2021.105761
Yayın durumu	Yayınlandı - Şub 2022

Bibliyografik not

Publisher Copyright:
© 2021

Belgeye Erişim

10.1016/j.ijrmhm.2021.105761

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Link to publication in Scopus

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title = "Comparative investigation of the properties of graphene nanoplatelet reinforced titanium diboride and niobium diboride ceramics",

abstract = "In this study, the effect of GNP concentration on the mechanical properties of spark plasma sintered TiB2 and NbB2 ceramics was investigated. GNP reinforced TiB2 and NbB2 specimens were aimed to produce with nearly full densification. Herein, SEM investigations, Raman analysis, and oxidation behavior of the samples were reported. GNP addition into the TiB2 and NbB2 matrices showed a different effect on various properties of the composites. GNP loading tends to enhance densification by removing native oxides of both TiB2 and NbB2 matrices. GNPs were more effective in the oxygen removal mechanism for TiB2 composites than NbB2. The highest relative density was obtained for TiB2-GNP and NbB2-GNP composites as 98.6% with 7 vol% and 5 vol% GNP additions, respectively. The Vickers microhardness decreased with increasing GNPs loading for both matrices. NbB2-GNP composites possessed higher fracture toughness and better oxidation resistance than TiB2-GNP composites.",

keywords = "Graphene, Niobium diboride, Oxidation, Spark plasma sintering, Titanium diboride",

author = "Ipek Akin and Ocak, {Burak Cagri} and Akarsu, {Melis Kaplan} and Onuralp Yucel and Filiz Sahin and Gultekin Goller",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2022",

month = feb,

doi = "10.1016/j.ijrmhm.2021.105761",

language = "English",

volume = "103",

journal = "International Journal of Refractory Metals and Hard Materials",

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TY - JOUR

T1 - Comparative investigation of the properties of graphene nanoplatelet reinforced titanium diboride and niobium diboride ceramics

AU - Akin, Ipek

AU - Ocak, Burak Cagri

AU - Akarsu, Melis Kaplan

AU - Yucel, Onuralp

AU - Sahin, Filiz

AU - Goller, Gultekin

PY - 2022/2

Y1 - 2022/2

N2 - In this study, the effect of GNP concentration on the mechanical properties of spark plasma sintered TiB2 and NbB2 ceramics was investigated. GNP reinforced TiB2 and NbB2 specimens were aimed to produce with nearly full densification. Herein, SEM investigations, Raman analysis, and oxidation behavior of the samples were reported. GNP addition into the TiB2 and NbB2 matrices showed a different effect on various properties of the composites. GNP loading tends to enhance densification by removing native oxides of both TiB2 and NbB2 matrices. GNPs were more effective in the oxygen removal mechanism for TiB2 composites than NbB2. The highest relative density was obtained for TiB2-GNP and NbB2-GNP composites as 98.6% with 7 vol% and 5 vol% GNP additions, respectively. The Vickers microhardness decreased with increasing GNPs loading for both matrices. NbB2-GNP composites possessed higher fracture toughness and better oxidation resistance than TiB2-GNP composites.

AB - In this study, the effect of GNP concentration on the mechanical properties of spark plasma sintered TiB2 and NbB2 ceramics was investigated. GNP reinforced TiB2 and NbB2 specimens were aimed to produce with nearly full densification. Herein, SEM investigations, Raman analysis, and oxidation behavior of the samples were reported. GNP addition into the TiB2 and NbB2 matrices showed a different effect on various properties of the composites. GNP loading tends to enhance densification by removing native oxides of both TiB2 and NbB2 matrices. GNPs were more effective in the oxygen removal mechanism for TiB2 composites than NbB2. The highest relative density was obtained for TiB2-GNP and NbB2-GNP composites as 98.6% with 7 vol% and 5 vol% GNP additions, respectively. The Vickers microhardness decreased with increasing GNPs loading for both matrices. NbB2-GNP composites possessed higher fracture toughness and better oxidation resistance than TiB2-GNP composites.

KW - Graphene

KW - Niobium diboride

KW - Oxidation

KW - Spark plasma sintering

KW - Titanium diboride

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U2 - 10.1016/j.ijrmhm.2021.105761

DO - 10.1016/j.ijrmhm.2021.105761

M3 - Article

AN - SCOPUS:85121128708

SN - 0263-4368

VL - 103

JO - International Journal of Refractory Metals and Hard Materials

JF - International Journal of Refractory Metals and Hard Materials

M1 - 105761

ER -

Comparative investigation of the properties of graphene nanoplatelet reinforced titanium diboride and niobium diboride ceramics

Özet

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