Densification behaviour of spark plasma sintered multiwall carbon nanotubes reinforced Ti6Al4V nanocomposites

A. M. Okoro; S. S. Lephuthing; R. MacHaka; M. A. Awotunde; P. A. Olubambi

doi:10.1016/j.matpr.2019.10.030

Densification behaviour of spark plasma sintered multiwall carbon nanotubes reinforced Ti6Al4V nanocomposites

A. M. Okoro, S. S. Lephuthing, R. MacHaka, M. A. Awotunde, P. A. Olubambi

Metallurgy

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

Abstract

In a bid to fabricate fully densified titanium-based nanocomposites with enhanced mechanical properties, spark plasma sintering (SPS) technique was employed in this study. Nanocomposite powders consisting of Ti6Al4V and multiwall carbon nanotubes (0.5 & 1.0 wt%) was mixed using shift speed ball milling technique. Furthermore, the Ti6Al4V and the nanocomposites were sintered by SPS technique using the sintering parameters of 100 °C/min, 900 °C and 10 min. The effects of MWCNT content on the densification behaviour during SPS and hardness of the nanocomposites was investigated. The results of the investigations showed the effectiveness of the dispersion technique during the nanocomposite powders preparation. The fabricated materials exhibited similar densification behaviours as it was observed that the relative density ranges from 98.2 to 99.3% and the microhardness increased with the addition of MWCNT in the Ti6Al4V matrix.

Original language	English
Pages (from-to)	450-454
Number of pages	5
Journal	Materials Today: Proceedings
Volume	28
DOIs	https://doi.org/10.1016/j.matpr.2019.10.030
Publication status	Published - 2019
Event	2nd International Conference on Recent Advances in Materials and Manufacturing Technologies, IMMT 2019 - Dubai, United Arab Emirates Duration: 20 Nov 2019 → 22 Nov 2019

Keywords

Densification
Multiwall carbon nanotubes
Nanocomposites
Spark plasma sintering
Titanium alloy

ASJC Scopus subject areas

General Materials Science

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10.1016/j.matpr.2019.10.030

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@article{c1b4791a78754febbe7450722180abf0,

title = "Densification behaviour of spark plasma sintered multiwall carbon nanotubes reinforced Ti6Al4V nanocomposites",

abstract = "In a bid to fabricate fully densified titanium-based nanocomposites with enhanced mechanical properties, spark plasma sintering (SPS) technique was employed in this study. Nanocomposite powders consisting of Ti6Al4V and multiwall carbon nanotubes (0.5 & 1.0 wt%) was mixed using shift speed ball milling technique. Furthermore, the Ti6Al4V and the nanocomposites were sintered by SPS technique using the sintering parameters of 100 °C/min, 900 °C and 10 min. The effects of MWCNT content on the densification behaviour during SPS and hardness of the nanocomposites was investigated. The results of the investigations showed the effectiveness of the dispersion technique during the nanocomposite powders preparation. The fabricated materials exhibited similar densification behaviours as it was observed that the relative density ranges from 98.2 to 99.3% and the microhardness increased with the addition of MWCNT in the Ti6Al4V matrix.",

keywords = "Densification, Multiwall carbon nanotubes, Nanocomposites, Spark plasma sintering, Titanium alloy",

author = "Okoro, {A. M.} and Lephuthing, {S. S.} and R. MacHaka and Awotunde, {M. A.} and Olubambi, {P. A.}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd.; 2nd International Conference on Recent Advances in Materials and Manufacturing Technologies, IMMT 2019 ; Conference date: 20-11-2019 Through 22-11-2019",

year = "2019",

doi = "10.1016/j.matpr.2019.10.030",

language = "English",

volume = "28",

pages = "450--454",

journal = "Materials Today: Proceedings",

issn = "2214-7853",

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TY - JOUR

T1 - Densification behaviour of spark plasma sintered multiwall carbon nanotubes reinforced Ti6Al4V nanocomposites

AU - Okoro, A. M.

AU - Lephuthing, S. S.

AU - MacHaka, R.

AU - Awotunde, M. A.

AU - Olubambi, P. A.

PY - 2019

Y1 - 2019

N2 - In a bid to fabricate fully densified titanium-based nanocomposites with enhanced mechanical properties, spark plasma sintering (SPS) technique was employed in this study. Nanocomposite powders consisting of Ti6Al4V and multiwall carbon nanotubes (0.5 & 1.0 wt%) was mixed using shift speed ball milling technique. Furthermore, the Ti6Al4V and the nanocomposites were sintered by SPS technique using the sintering parameters of 100 °C/min, 900 °C and 10 min. The effects of MWCNT content on the densification behaviour during SPS and hardness of the nanocomposites was investigated. The results of the investigations showed the effectiveness of the dispersion technique during the nanocomposite powders preparation. The fabricated materials exhibited similar densification behaviours as it was observed that the relative density ranges from 98.2 to 99.3% and the microhardness increased with the addition of MWCNT in the Ti6Al4V matrix.

AB - In a bid to fabricate fully densified titanium-based nanocomposites with enhanced mechanical properties, spark plasma sintering (SPS) technique was employed in this study. Nanocomposite powders consisting of Ti6Al4V and multiwall carbon nanotubes (0.5 & 1.0 wt%) was mixed using shift speed ball milling technique. Furthermore, the Ti6Al4V and the nanocomposites were sintered by SPS technique using the sintering parameters of 100 °C/min, 900 °C and 10 min. The effects of MWCNT content on the densification behaviour during SPS and hardness of the nanocomposites was investigated. The results of the investigations showed the effectiveness of the dispersion technique during the nanocomposite powders preparation. The fabricated materials exhibited similar densification behaviours as it was observed that the relative density ranges from 98.2 to 99.3% and the microhardness increased with the addition of MWCNT in the Ti6Al4V matrix.

KW - Densification

KW - Multiwall carbon nanotubes

KW - Nanocomposites

KW - Spark plasma sintering

KW - Titanium alloy

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U2 - 10.1016/j.matpr.2019.10.030

DO - 10.1016/j.matpr.2019.10.030

M3 - Conference article

AN - SCOPUS:85090160410

SN - 2214-7853

VL - 28

SP - 450

EP - 454

JO - Materials Today: Proceedings

JF - Materials Today: Proceedings

T2 - 2nd International Conference on Recent Advances in Materials and Manufacturing Technologies, IMMT 2019

Y2 - 20 November 2019 through 22 November 2019

ER -

Densification behaviour of spark plasma sintered multiwall carbon nanotubes reinforced Ti6Al4V nanocomposites

Abstract

Keywords

ASJC Scopus subject areas

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