Investigation the effect of FeNiCoCrMo HEA addition on properties of B4C ceramic prepared by spark plasma sintering

Burak Cagri Ocak; Gultekin Goller

doi:10.1016/j.jeurceramsoc.2021.06.003

Investigation the effect of FeNiCoCrMo HEA addition on properties of B₄C ceramic prepared by spark plasma sintering

Burak Cagri Ocak
, Gultekin Goller^*

^*Bu çalışma için yazışmadan sorumlu yazar

Metalurji ve Malzeme Müh.Böl.

Istanbul Technical University

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

30 Atıf (Scopus)

Özet

In this study, monolithic B₄C and B₄C-based ceramics incorporating FeNiCoCrMo dual-phase (FCC and BCC) high entropy alloys (HEAs) were produced by spark plasma sintering (SPS). The effect of additives on the densification behavior, mechanical properties, microstructures, and phase evaluation of the samples were investigated. X-ray analysis confirmed the existence of FCC structured HEA and depletion of BCC structured HEA, after high-temperature reaction between B₄C-HEAs. The addition of HEAs enhanced the densification behavior by liquid phase sintering. Furthermore, hardness and fracture toughness values of the samples increased with increasing HEAs content. Fracture toughness and hardness values for all composites were higher than the monolithic B₄C. A combination of the highest density (∼99.22 %) and the best mechanical properties (32.3 GPa hardness and 4.53 MPa m^1/2 fracture toughness) was achieved with 2.00 vol.% HEA addition.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	6290-6301
Sayfa sayısı	12
Dergi	Journal of the European Ceramic Society
Hacim	41
Basın numarası	13
DOI'lar	https://doi.org/10.1016/j.jeurceramsoc.2021.06.003
Yayın durumu	Yayınlandı - Eki 2021

Bibliyografik not

Publisher Copyright:
© 2021 Elsevier Ltd

Finansman

Burak Cagri Ocak is thankful to the Scientific and Technological Research Council of Turkey (TUBITAK) and Council of High Education (YOK) for 2211/C Domestic Priority Areas Doctoral Scholarship and 100/200 Ph.D. Scholarship, respectively. Authors also thank to H. Huseyin Sezer, Assoc. Prof. Ioana Csaki, Prof. Dr. M. Urgen, Prof. Dr. M. Baydogan, and Asst. Prof. N. Solak, for their assistance with microstructural investigations, high-entropy alloy powder production, Raman analysis, 4-point bending tests and XRD analysis, respectively.

Finansörler
Council of High Education
TUBITAK
YOK
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

Belgeye Erişim

10.1016/j.jeurceramsoc.2021.06.003

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Investigation the effect of FeNiCoCrMo HEA addition on properties of B4C ceramic prepared by spark plasma sintering",

abstract = "In this study, monolithic B4C and B4C-based ceramics incorporating FeNiCoCrMo dual-phase (FCC and BCC) high entropy alloys (HEAs) were produced by spark plasma sintering (SPS). The effect of additives on the densification behavior, mechanical properties, microstructures, and phase evaluation of the samples were investigated. X-ray analysis confirmed the existence of FCC structured HEA and depletion of BCC structured HEA, after high-temperature reaction between B4C-HEAs. The addition of HEAs enhanced the densification behavior by liquid phase sintering. Furthermore, hardness and fracture toughness values of the samples increased with increasing HEAs content. Fracture toughness and hardness values for all composites were higher than the monolithic B4C. A combination of the highest density (∼99.22 \%) and the best mechanical properties (32.3 GPa hardness and 4.53 MPa m1/2 fracture toughness) was achieved with 2.00 vol.\% HEA addition.",

keywords = "Boron carbide, High entropy alloy, Liquid phase sintering, Spark plasma sintering",

author = "Ocak, \{Burak Cagri\} and Gultekin Goller",

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

year = "2021",

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doi = "10.1016/j.jeurceramsoc.2021.06.003",

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T1 - Investigation the effect of FeNiCoCrMo HEA addition on properties of B4C ceramic prepared by spark plasma sintering

AU - Ocak, Burak Cagri

AU - Goller, Gultekin

PY - 2021/10

Y1 - 2021/10

N2 - In this study, monolithic B4C and B4C-based ceramics incorporating FeNiCoCrMo dual-phase (FCC and BCC) high entropy alloys (HEAs) were produced by spark plasma sintering (SPS). The effect of additives on the densification behavior, mechanical properties, microstructures, and phase evaluation of the samples were investigated. X-ray analysis confirmed the existence of FCC structured HEA and depletion of BCC structured HEA, after high-temperature reaction between B4C-HEAs. The addition of HEAs enhanced the densification behavior by liquid phase sintering. Furthermore, hardness and fracture toughness values of the samples increased with increasing HEAs content. Fracture toughness and hardness values for all composites were higher than the monolithic B4C. A combination of the highest density (∼99.22 %) and the best mechanical properties (32.3 GPa hardness and 4.53 MPa m1/2 fracture toughness) was achieved with 2.00 vol.% HEA addition.

AB - In this study, monolithic B4C and B4C-based ceramics incorporating FeNiCoCrMo dual-phase (FCC and BCC) high entropy alloys (HEAs) were produced by spark plasma sintering (SPS). The effect of additives on the densification behavior, mechanical properties, microstructures, and phase evaluation of the samples were investigated. X-ray analysis confirmed the existence of FCC structured HEA and depletion of BCC structured HEA, after high-temperature reaction between B4C-HEAs. The addition of HEAs enhanced the densification behavior by liquid phase sintering. Furthermore, hardness and fracture toughness values of the samples increased with increasing HEAs content. Fracture toughness and hardness values for all composites were higher than the monolithic B4C. A combination of the highest density (∼99.22 %) and the best mechanical properties (32.3 GPa hardness and 4.53 MPa m1/2 fracture toughness) was achieved with 2.00 vol.% HEA addition.

KW - Boron carbide

KW - High entropy alloy

KW - Liquid phase sintering

KW - Spark plasma sintering

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M3 - Article

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