Sliding friction behaviour of spark plasma sintered graphite reinforced binderless TiC0.7 N0.3 at elevated temperature

Gadifele Nicolene Mekgwe; Ojo Jeremiah Akinribide; Samuel Olukayode Akinwamide; Peter Apata Olubambi

doi:10.1016/j.mfglet.2025.06.056

Sliding friction behaviour of spark plasma sintered graphite reinforced binderless TiC_0.7 N_0.3 at elevated temperature

Gadifele Nicolene Mekgwe, Ojo Jeremiah Akinribide, Samuel Olukayode Akinwamide, Peter Apata Olubambi

Metallurgy

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

Abstract

In this study, high temperature friction behaviour of spark plasma sintered graphite reinforced binderless TiC_0.7N_0.3 based ceramic composite was investigated. Archimedes principle was used to evaluate the relative density of the sintered compact. Subsequently, microstructural characterization was performed prior micro-hardness tests. High temperature friction behaviour of the sintered composites was performed at 5 N and 10 N to determine the wear properties of the ceramic composites. The findings from this study demonstrated that the presence of graphite greatly influenced the properties of binderless TiC_0.7N_0.3 based ceramic composite. Sintered density of 99.6 % was achieved when 1.0 wt% of graphite was used and the frictional behaviour of composite B2 showed reduced coefficient of friction values at both loads. The results obtained on wear tests clearly indicated the lubricating tendency of graphite on TiCN composites.

Original language	English
Pages (from-to)	473-480
Number of pages	8
Journal	Manufacturing Letters
Volume	44
DOIs	https://doi.org/10.1016/j.mfglet.2025.06.056
Publication status	Published - Aug 2025

Keywords

Binderless TiCN based ceramic composite
Graphite reinforcement
High temperature friction behaviour
Spark plasma sintering

ASJC Scopus subject areas

Mechanics of Materials
Industrial and Manufacturing Engineering

Access to Document

10.1016/j.mfglet.2025.06.056

Cite this

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title = "Sliding friction behaviour of spark plasma sintered graphite reinforced binderless TiC0.7 N0.3 at elevated temperature",

abstract = "In this study, high temperature friction behaviour of spark plasma sintered graphite reinforced binderless TiC0.7N0.3 based ceramic composite was investigated. Archimedes principle was used to evaluate the relative density of the sintered compact. Subsequently, microstructural characterization was performed prior micro-hardness tests. High temperature friction behaviour of the sintered composites was performed at 5 N and 10 N to determine the wear properties of the ceramic composites. The findings from this study demonstrated that the presence of graphite greatly influenced the properties of binderless TiC0.7N0.3 based ceramic composite. Sintered density of 99.6 \% was achieved when 1.0 wt\% of graphite was used and the frictional behaviour of composite B2 showed reduced coefficient of friction values at both loads. The results obtained on wear tests clearly indicated the lubricating tendency of graphite on TiCN composites.",

keywords = "Binderless TiCN based ceramic composite, Graphite reinforcement, High temperature friction behaviour, Spark plasma sintering",

author = "Mekgwe, \{Gadifele Nicolene\} and Akinribide, \{Ojo Jeremiah\} and Akinwamide, \{Samuel Olukayode\} and Olubambi, \{Peter Apata\}",

note = "Publisher Copyright: {\textcopyright} 2025 The Author(s)",

year = "2025",

month = aug,

doi = "10.1016/j.mfglet.2025.06.056",

language = "English",

volume = "44",

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journal = "Manufacturing Letters",

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T1 - Sliding friction behaviour of spark plasma sintered graphite reinforced binderless TiC0.7 N0.3 at elevated temperature

AU - Mekgwe, Gadifele Nicolene

AU - Akinribide, Ojo Jeremiah

AU - Akinwamide, Samuel Olukayode

AU - Olubambi, Peter Apata

PY - 2025/8

Y1 - 2025/8

N2 - In this study, high temperature friction behaviour of spark plasma sintered graphite reinforced binderless TiC0.7N0.3 based ceramic composite was investigated. Archimedes principle was used to evaluate the relative density of the sintered compact. Subsequently, microstructural characterization was performed prior micro-hardness tests. High temperature friction behaviour of the sintered composites was performed at 5 N and 10 N to determine the wear properties of the ceramic composites. The findings from this study demonstrated that the presence of graphite greatly influenced the properties of binderless TiC0.7N0.3 based ceramic composite. Sintered density of 99.6 % was achieved when 1.0 wt% of graphite was used and the frictional behaviour of composite B2 showed reduced coefficient of friction values at both loads. The results obtained on wear tests clearly indicated the lubricating tendency of graphite on TiCN composites.

AB - In this study, high temperature friction behaviour of spark plasma sintered graphite reinforced binderless TiC0.7N0.3 based ceramic composite was investigated. Archimedes principle was used to evaluate the relative density of the sintered compact. Subsequently, microstructural characterization was performed prior micro-hardness tests. High temperature friction behaviour of the sintered composites was performed at 5 N and 10 N to determine the wear properties of the ceramic composites. The findings from this study demonstrated that the presence of graphite greatly influenced the properties of binderless TiC0.7N0.3 based ceramic composite. Sintered density of 99.6 % was achieved when 1.0 wt% of graphite was used and the frictional behaviour of composite B2 showed reduced coefficient of friction values at both loads. The results obtained on wear tests clearly indicated the lubricating tendency of graphite on TiCN composites.

KW - Binderless TiCN based ceramic composite

KW - Graphite reinforcement

KW - High temperature friction behaviour

KW - Spark plasma sintering

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