The influence of dispersion time on the mechanical properties of spark plasma–sintered carbon nanotubes reinforced nickel-aluminum matrix composites

Olusoji Oluremi Ayodele; Mary Ajimegoh Awotunde; Bukola Joseph Babalola; Peter Apata Olubambi

doi:10.1007/s00170-022-08933-7

The influence of dispersion time on the mechanical properties of spark plasma–sintered carbon nanotubes reinforced nickel-aluminum matrix composites

Olusoji Oluremi Ayodele, Mary Ajimegoh Awotunde, Bukola Joseph Babalola, Peter Apata Olubambi

Metallurgy

University of Johannesburg

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

1 Citation (Scopus)

Abstract

Nickel (Ni) and aluminum (Al) powders were milled with carbon nanotubes (CNT) by employing the high-speed ball milling approach, and the consolidation was achieved by spark plasma sintering technology (SPS). The microstructural evolution of the milled and consolidated samples was examined, and the mechanical properties were investigated. The outcome indicated an agglomeration of CNT within the NiAl matrix, and the CNT dispersions improved with the milling duration. The structural integrity of the CNT was evaluated using the Raman spectra, indicating that the I_D/I_G ratio decreased from 0.986 to 0.867 as the high-speed ball milling was prolonged, leading to more CNT damage. The microhardness of the consolidated composite was enhanced from 287.7 to 320.4 HV due to better dispersion of CNT within the matrix metal. Furthermore, the composite has predicted tensile strength and yield strength improved from 4011.9 to 4428.8 MPa, and 5747.9 to 6389.3 MPa.

Original language	English
Pages (from-to)	4113-4122
Number of pages	10
Journal	International Journal of Advanced Manufacturing Technology
Volume	120
Issue number	5-6
DOIs	https://doi.org/10.1007/s00170-022-08933-7
Publication status	Published - May 2022

Keywords

Carbon nanotubes
Microhardness
Nickel aluminide
Tensile strength
Yield strength

ASJC Scopus subject areas

Control and Systems Engineering
Software
Mechanical Engineering
Computer Science Applications
Industrial and Manufacturing Engineering

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10.1007/s00170-022-08933-7

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title = "The influence of dispersion time on the mechanical properties of spark plasma–sintered carbon nanotubes reinforced nickel-aluminum matrix composites",

abstract = "Nickel (Ni) and aluminum (Al) powders were milled with carbon nanotubes (CNT) by employing the high-speed ball milling approach, and the consolidation was achieved by spark plasma sintering technology (SPS). The microstructural evolution of the milled and consolidated samples was examined, and the mechanical properties were investigated. The outcome indicated an agglomeration of CNT within the NiAl matrix, and the CNT dispersions improved with the milling duration. The structural integrity of the CNT was evaluated using the Raman spectra, indicating that the ID/IG ratio decreased from 0.986 to 0.867 as the high-speed ball milling was prolonged, leading to more CNT damage. The microhardness of the consolidated composite was enhanced from 287.7 to 320.4 HV due to better dispersion of CNT within the matrix metal. Furthermore, the composite has predicted tensile strength and yield strength improved from 4011.9 to 4428.8 MPa, and 5747.9 to 6389.3 MPa.",

keywords = "Carbon nanotubes, Microhardness, Nickel aluminide, Tensile strength, Yield strength",

author = "Ayodele, {Olusoji Oluremi} and Awotunde, {Mary Ajimegoh} and Babalola, {Bukola Joseph} and Olubambi, {Peter Apata}",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature.",

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language = "English",

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The influence of dispersion time on the mechanical properties of spark plasma–sintered carbon nanotubes reinforced nickel-aluminum matrix composites. / Ayodele, Olusoji Oluremi; Awotunde, Mary Ajimegoh; Babalola, Bukola Joseph et al.
In: International Journal of Advanced Manufacturing Technology, Vol. 120, No. 5-6, 05.2022, p. 4113-4122.

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

TY - JOUR

T1 - The influence of dispersion time on the mechanical properties of spark plasma–sintered carbon nanotubes reinforced nickel-aluminum matrix composites

AU - Ayodele, Olusoji Oluremi

AU - Awotunde, Mary Ajimegoh

AU - Babalola, Bukola Joseph

AU - Olubambi, Peter Apata

PY - 2022/5

Y1 - 2022/5

N2 - Nickel (Ni) and aluminum (Al) powders were milled with carbon nanotubes (CNT) by employing the high-speed ball milling approach, and the consolidation was achieved by spark plasma sintering technology (SPS). The microstructural evolution of the milled and consolidated samples was examined, and the mechanical properties were investigated. The outcome indicated an agglomeration of CNT within the NiAl matrix, and the CNT dispersions improved with the milling duration. The structural integrity of the CNT was evaluated using the Raman spectra, indicating that the ID/IG ratio decreased from 0.986 to 0.867 as the high-speed ball milling was prolonged, leading to more CNT damage. The microhardness of the consolidated composite was enhanced from 287.7 to 320.4 HV due to better dispersion of CNT within the matrix metal. Furthermore, the composite has predicted tensile strength and yield strength improved from 4011.9 to 4428.8 MPa, and 5747.9 to 6389.3 MPa.

AB - Nickel (Ni) and aluminum (Al) powders were milled with carbon nanotubes (CNT) by employing the high-speed ball milling approach, and the consolidation was achieved by spark plasma sintering technology (SPS). The microstructural evolution of the milled and consolidated samples was examined, and the mechanical properties were investigated. The outcome indicated an agglomeration of CNT within the NiAl matrix, and the CNT dispersions improved with the milling duration. The structural integrity of the CNT was evaluated using the Raman spectra, indicating that the ID/IG ratio decreased from 0.986 to 0.867 as the high-speed ball milling was prolonged, leading to more CNT damage. The microhardness of the consolidated composite was enhanced from 287.7 to 320.4 HV due to better dispersion of CNT within the matrix metal. Furthermore, the composite has predicted tensile strength and yield strength improved from 4011.9 to 4428.8 MPa, and 5747.9 to 6389.3 MPa.

KW - Carbon nanotubes

KW - Microhardness

KW - Nickel aluminide

KW - Tensile strength

KW - Yield strength

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The influence of dispersion time on the mechanical properties of spark plasma–sintered carbon nanotubes reinforced nickel-aluminum matrix composites

Abstract

Keywords

ASJC Scopus subject areas

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