Microstructural and mechanical characterization of spark plasma sintered TiC ceramics with TiN additive

Yaghoub Pazhouhanfar; Abbas Sabahi Namini; Seyed Ali Delbari; Thang Phan Nguyen; Quyet Van Le; Shahrzad Shaddel; Morteza Pazhouhanfar; Mohammadreza Shokouhimehr; Mehdi Shahedi Asl

doi:10.1016/j.ceramint.2020.04.215

Microstructural and mechanical characterization of spark plasma sintered TiC ceramics with TiN additive

Yaghoub Pazhouhanfar
, Abbas Sabahi Namini^*
, Seyed Ali Delbari
, Thang Phan Nguyen
, Quyet Van Le^*
, Shahrzad Shaddel
, Morteza Pazhouhanfar
, Mohammadreza Shokouhimehr^*
, Mehdi Shahedi Asl^*

^*Corresponding author for this work

Aliyazh Sanat Sahand Ipak Company
University of Mohaghegh Ardebili
Sabalan University of Advanced Technologies
Seoul National University
Ton Duc Thang University
Duy Tan University
Sahand University of Technology

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

54 Citations (Scopus)

Abstract

This investigation intends to study the influence of titanium nitride (TiN) additive on the sintering behavior, mechanical features and microstructural development of TiC-based substances. For this objective, two different samples, namely monolithic TiC and TiC-5 wt% TiN, were sintered at 1900 °C using the SPS method. The specimens were held at the ultimate temperature for 10 min under 40 MPa. X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM) were implemented to characterize the as-produced specimens. Introducing TiN increased the relative density of TiC by around 1.5%, standing next to 97%. The assessments revealed the creation of non-stoichiometric TiC_1-x along with some graphitized carbon phases in the undoped ceramic. By contrast, TiN additive completely dissolved into the TiC matrix in the composite sample and a new in-situ phase (C₃N₄) appeared. Finally, a Vickers hardness of ~2750 HV_0.1 and a flexural strength of ~450 MPa were achieved for the TiN-doped specimen.

Original language	English
Pages (from-to)	18924-18932
Number of pages	9
Journal	Ceramics International
Volume	46
Issue number	11
DOIs	https://doi.org/10.1016/j.ceramint.2020.04.215
Publication status	Published - 1 Aug 2020
Externally published	Yes

Keywords

CN
Solid solution
SPS
TiC
TiN

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10.1016/j.ceramint.2020.04.215

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@article{5a8efbecb5154752b28488e3412e9f1d,

title = "Microstructural and mechanical characterization of spark plasma sintered TiC ceramics with TiN additive",

abstract = "This investigation intends to study the influence of titanium nitride (TiN) additive on the sintering behavior, mechanical features and microstructural development of TiC-based substances. For this objective, two different samples, namely monolithic TiC and TiC-5 wt\% TiN, were sintered at 1900 °C using the SPS method. The specimens were held at the ultimate temperature for 10 min under 40 MPa. X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM) were implemented to characterize the as-produced specimens. Introducing TiN increased the relative density of TiC by around 1.5\%, standing next to 97\%. The assessments revealed the creation of non-stoichiometric TiC1-x along with some graphitized carbon phases in the undoped ceramic. By contrast, TiN additive completely dissolved into the TiC matrix in the composite sample and a new in-situ phase (C3N4) appeared. Finally, a Vickers hardness of \textasciitilde{}2750 HV0.1 and a flexural strength of \textasciitilde{}450 MPa were achieved for the TiN-doped specimen.",

keywords = "CN, Solid solution, SPS, TiC, TiN",

author = "Yaghoub Pazhouhanfar and \{Sabahi Namini\}, Abbas and Delbari, \{Seyed Ali\} and Nguyen, \{Thang Phan\} and Le, \{Quyet Van\} and Shahrzad Shaddel and Morteza Pazhouhanfar and Mohammadreza Shokouhimehr and \{Shahedi Asl\}, Mehdi",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd and Techna Group S.r.l.",

year = "2020",

month = aug,

day = "1",

doi = "10.1016/j.ceramint.2020.04.215",

language = "English",

volume = "46",

pages = "18924--18932",

journal = "Ceramics International",

issn = "0272-8842",

number = "11",

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TY - JOUR

T1 - Microstructural and mechanical characterization of spark plasma sintered TiC ceramics with TiN additive

AU - Pazhouhanfar, Yaghoub

AU - Sabahi Namini, Abbas

AU - Delbari, Seyed Ali

AU - Nguyen, Thang Phan

AU - Le, Quyet Van

AU - Shaddel, Shahrzad

AU - Pazhouhanfar, Morteza

AU - Shokouhimehr, Mohammadreza

AU - Shahedi Asl, Mehdi

PY - 2020/8/1

Y1 - 2020/8/1

N2 - This investigation intends to study the influence of titanium nitride (TiN) additive on the sintering behavior, mechanical features and microstructural development of TiC-based substances. For this objective, two different samples, namely monolithic TiC and TiC-5 wt% TiN, were sintered at 1900 °C using the SPS method. The specimens were held at the ultimate temperature for 10 min under 40 MPa. X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM) were implemented to characterize the as-produced specimens. Introducing TiN increased the relative density of TiC by around 1.5%, standing next to 97%. The assessments revealed the creation of non-stoichiometric TiC1-x along with some graphitized carbon phases in the undoped ceramic. By contrast, TiN additive completely dissolved into the TiC matrix in the composite sample and a new in-situ phase (C3N4) appeared. Finally, a Vickers hardness of ~2750 HV0.1 and a flexural strength of ~450 MPa were achieved for the TiN-doped specimen.

AB - This investigation intends to study the influence of titanium nitride (TiN) additive on the sintering behavior, mechanical features and microstructural development of TiC-based substances. For this objective, two different samples, namely monolithic TiC and TiC-5 wt% TiN, were sintered at 1900 °C using the SPS method. The specimens were held at the ultimate temperature for 10 min under 40 MPa. X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM) were implemented to characterize the as-produced specimens. Introducing TiN increased the relative density of TiC by around 1.5%, standing next to 97%. The assessments revealed the creation of non-stoichiometric TiC1-x along with some graphitized carbon phases in the undoped ceramic. By contrast, TiN additive completely dissolved into the TiC matrix in the composite sample and a new in-situ phase (C3N4) appeared. Finally, a Vickers hardness of ~2750 HV0.1 and a flexural strength of ~450 MPa were achieved for the TiN-doped specimen.

KW - CN

KW - Solid solution

KW - SPS

KW - TiC

KW - TiN

UR - https://www.scopus.com/pages/publications/85084395110

U2 - 10.1016/j.ceramint.2020.04.215

DO - 10.1016/j.ceramint.2020.04.215

M3 - Article

AN - SCOPUS:85084395110

SN - 0272-8842

VL - 46

SP - 18924

EP - 18932

JO - Ceramics International

JF - Ceramics International

IS - 11

ER -

Microstructural and mechanical characterization of spark plasma sintered TiC ceramics with TiN additive

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Keywords

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