Mechanical properties of ultrafine graphite –Ti (C0.9, N0.1) solid solutions fabricated via spark plasma sintering

Ojo Jeremiah Akinribide; Gadifele Nicolene Mekgwe; Olawale Olarewaju Ajibola; Babatunde Abiodun Obadele; Samuel Olukayode Akinwamide; Eso Oluwasegun Falodun; Peter Apata Olubambi

doi:10.1016/j.promfg.2019.02.057

Mechanical properties of ultrafine graphite –Ti (C_0.9, N_0.1) solid solutions fabricated via spark plasma sintering

Ojo Jeremiah Akinribide, Gadifele Nicolene Mekgwe, Olawale Olarewaju Ajibola, Babatunde Abiodun Obadele, Samuel Olukayode Akinwamide, Eso Oluwasegun Falodun, Peter Apata Olubambi

University of Johannesburg

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

Spark plasma sintering technique was used to consolidate solid solution of graphite–Ti (C0.9, N0.1) using ultrafine size of graphite and titanium carbonitride powder with carbon to nitrogen composition of 90:10 at 2000 ^oC for 5 mins. The densification of the sintered graphite (0-1 wt. %) –Ti (C0.9, N0.1) was 98-99% at 2000 ^oC in the matrix. The carbide rich and Ti rich were the two distinct solid solution phases observed, although Graphite –Ti (C0.9, N0.1) solid solution as a solitary phase was attained at 2000 ^oC. This could be attributed to changes in the parameters with in the lattice site due to excess heat and causing the solid solutions phases to favour the carbide and titanium phases, respectively. The graphite–Ti (C0.9, N0.1) solid solution upon the application of different load the value of the hardness decreases as the load increases for unreinforced and reinforced Ti (C0.9, N0.1). Furthermore, the fracture toughness (KIC) was within the range of (1.04 - 7.99)

Original language	English
Pages (from-to)	411-418
Number of pages	8
Journal	Procedia Manufacturing
Volume	30
DOIs	https://doi.org/10.1016/j.promfg.2019.02.057
Publication status	Published - 2019
Event	14th Global Congress on Manufacturing and Management, GCMM 2018 - Brisbane, Australia Duration: 5 Dec 2018 → 7 Dec 2018

Keywords

Fracture toughness
Graphite
Hardness
Solid- solution
Spark plasma sintering
Ti (C0.9, N0.1)

ASJC Scopus subject areas

Industrial and Manufacturing Engineering
Artificial Intelligence

Access to Document

10.1016/j.promfg.2019.02.057

Cite this

@article{d88ba4901aa349a5a82ea21b6525189c,

title = "Mechanical properties of ultrafine graphite –Ti (C0.9, N0.1) solid solutions fabricated via spark plasma sintering",

abstract = "Spark plasma sintering technique was used to consolidate solid solution of graphite–Ti (C0.9, N0.1) using ultrafine size of graphite and titanium carbonitride powder with carbon to nitrogen composition of 90:10 at 2000 oC for 5 mins. The densification of the sintered graphite (0-1 wt. %) –Ti (C0.9, N0.1) was 98-99% at 2000 oC in the matrix. The carbide rich and Ti rich were the two distinct solid solution phases observed, although Graphite –Ti (C0.9, N0.1) solid solution as a solitary phase was attained at 2000 oC. This could be attributed to changes in the parameters with in the lattice site due to excess heat and causing the solid solutions phases to favour the carbide and titanium phases, respectively. The graphite–Ti (C0.9, N0.1) solid solution upon the application of different load the value of the hardness decreases as the load increases for unreinforced and reinforced Ti (C0.9, N0.1). Furthermore, the fracture toughness (KIC) was within the range of (1.04 - 7.99)",

keywords = "Fracture toughness, Graphite, Hardness, Solid- solution, Spark plasma sintering, Ti (C0.9, N0.1)",

author = "Akinribide, {Ojo Jeremiah} and Mekgwe, {Gadifele Nicolene} and Ajibola, {Olawale Olarewaju} and Obadele, {Babatunde Abiodun} and Akinwamide, {Samuel Olukayode} and Falodun, {Eso Oluwasegun} and Olubambi, {Peter Apata}",

note = "Publisher Copyright: {\textcopyright} 2019 The Authors. Published by Elsevier Ltd.; 14th Global Congress on Manufacturing and Management, GCMM 2018 ; Conference date: 05-12-2018 Through 07-12-2018",

year = "2019",

doi = "10.1016/j.promfg.2019.02.057",

language = "English",

volume = "30",

pages = "411--418",

journal = "Procedia Manufacturing",

issn = "2351-9789",

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TY - JOUR

T1 - Mechanical properties of ultrafine graphite –Ti (C0.9, N0.1) solid solutions fabricated via spark plasma sintering

AU - Akinribide, Ojo Jeremiah

AU - Mekgwe, Gadifele Nicolene

AU - Ajibola, Olawale Olarewaju

AU - Obadele, Babatunde Abiodun

AU - Akinwamide, Samuel Olukayode

AU - Falodun, Eso Oluwasegun

AU - Olubambi, Peter Apata

PY - 2019

Y1 - 2019

N2 - Spark plasma sintering technique was used to consolidate solid solution of graphite–Ti (C0.9, N0.1) using ultrafine size of graphite and titanium carbonitride powder with carbon to nitrogen composition of 90:10 at 2000 oC for 5 mins. The densification of the sintered graphite (0-1 wt. %) –Ti (C0.9, N0.1) was 98-99% at 2000 oC in the matrix. The carbide rich and Ti rich were the two distinct solid solution phases observed, although Graphite –Ti (C0.9, N0.1) solid solution as a solitary phase was attained at 2000 oC. This could be attributed to changes in the parameters with in the lattice site due to excess heat and causing the solid solutions phases to favour the carbide and titanium phases, respectively. The graphite–Ti (C0.9, N0.1) solid solution upon the application of different load the value of the hardness decreases as the load increases for unreinforced and reinforced Ti (C0.9, N0.1). Furthermore, the fracture toughness (KIC) was within the range of (1.04 - 7.99)

AB - Spark plasma sintering technique was used to consolidate solid solution of graphite–Ti (C0.9, N0.1) using ultrafine size of graphite and titanium carbonitride powder with carbon to nitrogen composition of 90:10 at 2000 oC for 5 mins. The densification of the sintered graphite (0-1 wt. %) –Ti (C0.9, N0.1) was 98-99% at 2000 oC in the matrix. The carbide rich and Ti rich were the two distinct solid solution phases observed, although Graphite –Ti (C0.9, N0.1) solid solution as a solitary phase was attained at 2000 oC. This could be attributed to changes in the parameters with in the lattice site due to excess heat and causing the solid solutions phases to favour the carbide and titanium phases, respectively. The graphite–Ti (C0.9, N0.1) solid solution upon the application of different load the value of the hardness decreases as the load increases for unreinforced and reinforced Ti (C0.9, N0.1). Furthermore, the fracture toughness (KIC) was within the range of (1.04 - 7.99)

KW - Fracture toughness

KW - Graphite

KW - Hardness

KW - Solid- solution

KW - Spark plasma sintering

KW - Ti (C0.9, N0.1)

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