Role of nano-diamond addition on the characteristics of spark plasma sintered TiC ceramics

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

doi:10.1016/j.diamond.2020.107828

Role of nano-diamond addition on the characteristics of spark plasma sintered TiC ceramics

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

^*Corresponding author for this work

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

52 Citations (Scopus)

Abstract

This research deals with the impacts of nano-diamond addition on the densification behavior and mechanical/thermal properties of titanium carbide processed by the SPS method. For this purpose, 5 wt% nano-diamond was introduced to TiC-based ceramics sintered at 1900 °C under an external pressure of 40 MPa for 10 min. As-sintered samples were characterized by assessing relative density, hardness, thermal conductivity, flexural strength, and performing microstructural and phase analyses using FESEM and XRD. The results confirmed the formation of non-stoichiometric TiC_x in both specimens and graphitization of nano-diamond particles in the doped specimen. Introducing nano-diamond to TiC matrix decreased the mechanical properties, but significantly improved the thermal conductivity.

Original language	English
Article number	107828
Journal	Diamond and Related Materials
Volume	106
DOIs	https://doi.org/10.1016/j.diamond.2020.107828
Publication status	Published - Jun 2020
Externally published	Yes

Keywords

Characterization
Nano-diamond
SPS
TiC

Access to Document

10.1016/j.diamond.2020.107828

Cite this

@article{176ee8dfc9e94499977e008ae4715f8d,

title = "Role of nano-diamond addition on the characteristics of spark plasma sintered TiC ceramics",

abstract = "This research deals with the impacts of nano-diamond addition on the densification behavior and mechanical/thermal properties of titanium carbide processed by the SPS method. For this purpose, 5 wt% nano-diamond was introduced to TiC-based ceramics sintered at 1900 °C under an external pressure of 40 MPa for 10 min. As-sintered samples were characterized by assessing relative density, hardness, thermal conductivity, flexural strength, and performing microstructural and phase analyses using FESEM and XRD. The results confirmed the formation of non-stoichiometric TiCx in both specimens and graphitization of nano-diamond particles in the doped specimen. Introducing nano-diamond to TiC matrix decreased the mechanical properties, but significantly improved the thermal conductivity.",

keywords = "Characterization, Nano-diamond, SPS, TiC",

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

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = jun,

doi = "10.1016/j.diamond.2020.107828",

language = "English",

volume = "106",

journal = "Diamond and Related Materials",

issn = "0925-9635",

}

TY - JOUR

T1 - Role of nano-diamond addition on the characteristics of spark plasma sintered TiC ceramics

AU - Nguyen, Thang Phan

AU - Pazhouhanfar, Yaghoub

AU - Delbari, Seyed Ali

AU - Le, Quyet Van

AU - Shaddel, Shahrzad

AU - Sabahi Namini, Abbas

AU - Shokouhimehr, Mohammadreza

AU - Shahedi Asl, Mehdi

PY - 2020/6

Y1 - 2020/6

N2 - This research deals with the impacts of nano-diamond addition on the densification behavior and mechanical/thermal properties of titanium carbide processed by the SPS method. For this purpose, 5 wt% nano-diamond was introduced to TiC-based ceramics sintered at 1900 °C under an external pressure of 40 MPa for 10 min. As-sintered samples were characterized by assessing relative density, hardness, thermal conductivity, flexural strength, and performing microstructural and phase analyses using FESEM and XRD. The results confirmed the formation of non-stoichiometric TiCx in both specimens and graphitization of nano-diamond particles in the doped specimen. Introducing nano-diamond to TiC matrix decreased the mechanical properties, but significantly improved the thermal conductivity.

AB - This research deals with the impacts of nano-diamond addition on the densification behavior and mechanical/thermal properties of titanium carbide processed by the SPS method. For this purpose, 5 wt% nano-diamond was introduced to TiC-based ceramics sintered at 1900 °C under an external pressure of 40 MPa for 10 min. As-sintered samples were characterized by assessing relative density, hardness, thermal conductivity, flexural strength, and performing microstructural and phase analyses using FESEM and XRD. The results confirmed the formation of non-stoichiometric TiCx in both specimens and graphitization of nano-diamond particles in the doped specimen. Introducing nano-diamond to TiC matrix decreased the mechanical properties, but significantly improved the thermal conductivity.

KW - Characterization

KW - Nano-diamond

KW - SPS

KW - TiC

UR - http://www.scopus.com/inward/record.url?scp=85082975276&partnerID=8YFLogxK

U2 - 10.1016/j.diamond.2020.107828

DO - 10.1016/j.diamond.2020.107828

M3 - Article

AN - SCOPUS:85082975276

SN - 0925-9635

VL - 106

JO - Diamond and Related Materials

JF - Diamond and Related Materials

M1 - 107828

ER -

Role of nano-diamond addition on the characteristics of spark plasma sintered TiC ceramics

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this