Spark plasma sintering of Al-Ti-Al2O3 composite

Samuel Ranti Oke; Oluwasegun Eso Falodun; Buhle Gladness Motsa; Oladeji Oluremi Ige; Peter Apata Olubambi

doi:10.1016/j.matpr.2019.07.335

Spark plasma sintering of Al-Ti-Al₂O₃ composite

Samuel Ranti Oke, Oluwasegun Eso Falodun, Buhle Gladness Motsa, Oladeji Oluremi Ige, Peter Apata Olubambi

Metallurgy

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

7 Citations (Scopus)

Abstract

In this study, Al-Ti-Al₂O₃ composite was fabricated via spark plasma sintering (SPS) technique. The effects of Al₂O₃ reinforcement on the densification, microstructure and hardness of the sintered Al-Ti-Al₂O₃ composite were investigated. The data obtained during sintering was used to analyse the densification behaviour of the sintered composites during SPS. The dispersion of the Al₂O₃ in the Al matrix during mixing and after sintering was evaluated using secondary electron and optical microscope respectively. Microhardness was utilized to study the properties of the composites. The results revealed that the reinforcing Al₂O₃ is homogenously dispersed within the Al matrix. The shrinkage rates show only two densification stages relating plastic deformation of the particles and rapid densification of the composite. The relative density of composites decreased with an increase in Al₂O₃ content in the Al matrix. The hardness of the composite increased with Al₂O₃ addition.

Original language	English
Pages (from-to)	3946-3951
Number of pages	6
Journal	Materials Today: Proceedings
Volume	18
DOIs	https://doi.org/10.1016/j.matpr.2019.07.335
Publication status	Published - 2019
Event	9th International Conference of Materials Processing and Characterization, ICMPC 2019 - Hyderabad, Andhra Pradesh, India Duration: 8 Mar 2019 → 10 Mar 2019

Keywords

AMC
Densification
Microstructure
Spark plasma sintering (SPS)

ASJC Scopus subject areas

General Materials Science

Access to Document

10.1016/j.matpr.2019.07.335

Cite this

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title = "Spark plasma sintering of Al-Ti-Al2O3 composite",

abstract = "In this study, Al-Ti-Al2O3 composite was fabricated via spark plasma sintering (SPS) technique. The effects of Al2O3 reinforcement on the densification, microstructure and hardness of the sintered Al-Ti-Al2O3 composite were investigated. The data obtained during sintering was used to analyse the densification behaviour of the sintered composites during SPS. The dispersion of the Al2O3 in the Al matrix during mixing and after sintering was evaluated using secondary electron and optical microscope respectively. Microhardness was utilized to study the properties of the composites. The results revealed that the reinforcing Al2O3 is homogenously dispersed within the Al matrix. The shrinkage rates show only two densification stages relating plastic deformation of the particles and rapid densification of the composite. The relative density of composites decreased with an increase in Al2O3 content in the Al matrix. The hardness of the composite increased with Al2O3 addition.",

keywords = "AMC, Densification, Microstructure, Spark plasma sintering (SPS)",

author = "Oke, {Samuel Ranti} and Falodun, {Oluwasegun Eso} and Motsa, {Buhle Gladness} and Ige, {Oladeji Oluremi} and Olubambi, {Peter Apata}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd. All rights reserved.; 9th International Conference of Materials Processing and Characterization, ICMPC 2019 ; Conference date: 08-03-2019 Through 10-03-2019",

year = "2019",

doi = "10.1016/j.matpr.2019.07.335",

language = "English",

volume = "18",

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journal = "Materials Today: Proceedings",

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T1 - Spark plasma sintering of Al-Ti-Al2O3 composite

AU - Oke, Samuel Ranti

AU - Falodun, Oluwasegun Eso

AU - Motsa, Buhle Gladness

AU - Ige, Oladeji Oluremi

AU - Olubambi, Peter Apata

PY - 2019

Y1 - 2019

N2 - In this study, Al-Ti-Al2O3 composite was fabricated via spark plasma sintering (SPS) technique. The effects of Al2O3 reinforcement on the densification, microstructure and hardness of the sintered Al-Ti-Al2O3 composite were investigated. The data obtained during sintering was used to analyse the densification behaviour of the sintered composites during SPS. The dispersion of the Al2O3 in the Al matrix during mixing and after sintering was evaluated using secondary electron and optical microscope respectively. Microhardness was utilized to study the properties of the composites. The results revealed that the reinforcing Al2O3 is homogenously dispersed within the Al matrix. The shrinkage rates show only two densification stages relating plastic deformation of the particles and rapid densification of the composite. The relative density of composites decreased with an increase in Al2O3 content in the Al matrix. The hardness of the composite increased with Al2O3 addition.

AB - In this study, Al-Ti-Al2O3 composite was fabricated via spark plasma sintering (SPS) technique. The effects of Al2O3 reinforcement on the densification, microstructure and hardness of the sintered Al-Ti-Al2O3 composite were investigated. The data obtained during sintering was used to analyse the densification behaviour of the sintered composites during SPS. The dispersion of the Al2O3 in the Al matrix during mixing and after sintering was evaluated using secondary electron and optical microscope respectively. Microhardness was utilized to study the properties of the composites. The results revealed that the reinforcing Al2O3 is homogenously dispersed within the Al matrix. The shrinkage rates show only two densification stages relating plastic deformation of the particles and rapid densification of the composite. The relative density of composites decreased with an increase in Al2O3 content in the Al matrix. The hardness of the composite increased with Al2O3 addition.

KW - AMC

KW - Densification

KW - Microstructure

KW - Spark plasma sintering (SPS)

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