Spark plasma sintering of TiB2-based ceramics with Ti3AlC2

Behzad Nayebi; Mehdi Shahedi Asl; Maryam Akhlaghi; Zohre Ahmadi; Seyed Ali Tayebifard; Esmaeil Salahi; Mohammadreza Shokouhimehr; Mohsen Mohammadi

doi:10.1016/j.ceramint.2021.01.033

Spark plasma sintering of TiB₂-based ceramics with Ti₃AlC₂

Behzad Nayebi^*, Mehdi Shahedi Asl^*, Maryam Akhlaghi, Zohre Ahmadi, Seyed Ali Tayebifard^*, Esmaeil Salahi, Mohammadreza Shokouhimehr, Mohsen Mohammadi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

A TiB₂–Ti₃AlC₂ ceramic was manufactured by spark plasma sintering at 1900 °C temperature for 7 min soaking time under 30 MPa biaxial pressure. The role of Ti₃AlC₂ additive on the microstructure development, densification behavior, phase evolution, and hardness of the ceramic composite were studied. The phase characterization and microstructural investigations unveiled that the Ti₃AlC₂ MAX phase decomposes at the initial stages of the sintering. The in-situ formed phases, induced by the decomposition of Ti₃AlC₂ additive, were identified and scrutinized by XRD and FESEM/EDS techniques as well as thermodynamics principles. The sintered TiB₂–Ti₃AlC₂ ceramic approached a near full density of ~99% and a hardness of ~28 GPa. The densification mechanism and sintering phenomena were discussed and graphically illustrated.

Original language	English
Pages (from-to)	11929-11934
Number of pages	6
Journal	Ceramics International
Volume	47
Issue number	9
DOIs	https://doi.org/10.1016/j.ceramint.2021.01.033
Publication status	Published - 1 May 2021
Externally published	Yes

Keywords

Microstructure
Spark plasma sintering
TiAlC MAX phase
Titanium diboride

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10.1016/j.ceramint.2021.01.033

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title = "Spark plasma sintering of TiB2-based ceramics with Ti3AlC2",

abstract = "A TiB2–Ti3AlC2 ceramic was manufactured by spark plasma sintering at 1900 °C temperature for 7 min soaking time under 30 MPa biaxial pressure. The role of Ti3AlC2 additive on the microstructure development, densification behavior, phase evolution, and hardness of the ceramic composite were studied. The phase characterization and microstructural investigations unveiled that the Ti3AlC2 MAX phase decomposes at the initial stages of the sintering. The in-situ formed phases, induced by the decomposition of Ti3AlC2 additive, were identified and scrutinized by XRD and FESEM/EDS techniques as well as thermodynamics principles. The sintered TiB2–Ti3AlC2 ceramic approached a near full density of ~99% and a hardness of ~28 GPa. The densification mechanism and sintering phenomena were discussed and graphically illustrated.",

keywords = "Microstructure, Spark plasma sintering, TiAlC MAX phase, Titanium diboride",

author = "Behzad Nayebi and {Shahedi Asl}, Mehdi and Maryam Akhlaghi and Zohre Ahmadi and Tayebifard, {Seyed Ali} and Esmaeil Salahi and Mohammadreza Shokouhimehr and Mohsen Mohammadi",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd and Techna Group S.r.l.",

year = "2021",

month = may,

day = "1",

doi = "10.1016/j.ceramint.2021.01.033",

language = "English",

volume = "47",

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TY - JOUR

T1 - Spark plasma sintering of TiB2-based ceramics with Ti3AlC2

AU - Nayebi, Behzad

AU - Shahedi Asl, Mehdi

AU - Akhlaghi, Maryam

AU - Ahmadi, Zohre

AU - Tayebifard, Seyed Ali

AU - Salahi, Esmaeil

AU - Shokouhimehr, Mohammadreza

AU - Mohammadi, Mohsen

PY - 2021/5/1

Y1 - 2021/5/1

N2 - A TiB2–Ti3AlC2 ceramic was manufactured by spark plasma sintering at 1900 °C temperature for 7 min soaking time under 30 MPa biaxial pressure. The role of Ti3AlC2 additive on the microstructure development, densification behavior, phase evolution, and hardness of the ceramic composite were studied. The phase characterization and microstructural investigations unveiled that the Ti3AlC2 MAX phase decomposes at the initial stages of the sintering. The in-situ formed phases, induced by the decomposition of Ti3AlC2 additive, were identified and scrutinized by XRD and FESEM/EDS techniques as well as thermodynamics principles. The sintered TiB2–Ti3AlC2 ceramic approached a near full density of ~99% and a hardness of ~28 GPa. The densification mechanism and sintering phenomena were discussed and graphically illustrated.

AB - A TiB2–Ti3AlC2 ceramic was manufactured by spark plasma sintering at 1900 °C temperature for 7 min soaking time under 30 MPa biaxial pressure. The role of Ti3AlC2 additive on the microstructure development, densification behavior, phase evolution, and hardness of the ceramic composite were studied. The phase characterization and microstructural investigations unveiled that the Ti3AlC2 MAX phase decomposes at the initial stages of the sintering. The in-situ formed phases, induced by the decomposition of Ti3AlC2 additive, were identified and scrutinized by XRD and FESEM/EDS techniques as well as thermodynamics principles. The sintered TiB2–Ti3AlC2 ceramic approached a near full density of ~99% and a hardness of ~28 GPa. The densification mechanism and sintering phenomena were discussed and graphically illustrated.

KW - Microstructure

KW - Spark plasma sintering

KW - TiAlC MAX phase

KW - Titanium diboride

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DO - 10.1016/j.ceramint.2021.01.033

M3 - Article

AN - SCOPUS:85099632464

SN - 0272-8842

VL - 47

SP - 11929

EP - 11934

JO - Ceramics International

JF - Ceramics International

IS - 9

ER -

Spark plasma sintering of TiB₂-based ceramics with Ti₃AlC₂

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Keywords

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