Using direct high-pressure torsion synthesis to produce aluminium matrix nanocomposites reinforced with carbon nanotubes
Using direct high-pressure torsion synthesis to produce aluminium matrix nanocomposites reinforced with carbon nanotubes
Aluminium matrix nanocomposites reinforced with carbon nanotubes were fabricated in a new way by direct synthesis using high-pressure torsion (HPT). Aluminium of 99.99% and 99.5% purities were used as matrix materials with carbon nanotubes in amounts of 0.5 and 1 wt.% as reinforcement. The HPT processing led to extensive grain size refinement which was significantly higher than for pure metals and to a relatively uniform distribution of the fillers. The grain size of the matrix was smaller for Al99.5 compared to Al99.99 while the particle spatial distribution was more homogenous for the Al99.99 matrix. This was attributed to a lower hardness and higher plasticity of Al 99.99 alloy. The addition of carbon nanotubes also improved the thermal stability of the ultrafine-grained structure, especially if homogenously distributed as for the Al99.99 matrix nanocomposites.
Aluminium, Carbon nanotubes, High-pressure torsion, Nanocomposites, Thermal stability
Emerla, Maria
0535ae99-edb0-4e25-9404-356ca343cd44
Technology, Warsaw
844b4a15-226a-4275-9cee-812669fa033c
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Lewandowska, Malgorzata
c574d02d-d34d-4164-8ed1-90c3d77584d2
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
15 December 2023
Emerla, Maria
0535ae99-edb0-4e25-9404-356ca343cd44
Technology, Warsaw
844b4a15-226a-4275-9cee-812669fa033c
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Lewandowska, Malgorzata
c574d02d-d34d-4164-8ed1-90c3d77584d2
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Emerla, Maria, Technology, Warsaw, Huang, Yi, Lewandowska, Malgorzata and Langdon, Terence G.
(2023)
Using direct high-pressure torsion synthesis to produce aluminium matrix nanocomposites reinforced with carbon nanotubes.
Journal of Alloys and Compounds, 968, [171928].
(doi:10.1016/j.jallcom.2023.171928).
Abstract
Aluminium matrix nanocomposites reinforced with carbon nanotubes were fabricated in a new way by direct synthesis using high-pressure torsion (HPT). Aluminium of 99.99% and 99.5% purities were used as matrix materials with carbon nanotubes in amounts of 0.5 and 1 wt.% as reinforcement. The HPT processing led to extensive grain size refinement which was significantly higher than for pure metals and to a relatively uniform distribution of the fillers. The grain size of the matrix was smaller for Al99.5 compared to Al99.99 while the particle spatial distribution was more homogenous for the Al99.99 matrix. This was attributed to a lower hardness and higher plasticity of Al 99.99 alloy. The addition of carbon nanotubes also improved the thermal stability of the ultrafine-grained structure, especially if homogenously distributed as for the Al99.99 matrix nanocomposites.
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Submitted date: 6 June 2023
Accepted/In Press date: 27 August 2023
e-pub ahead of print date: 28 August 2023
Published date: 15 December 2023
Additional Information:
Funding Information:
This work was carried out within an OPUS 19 project, Metal matrix composites fabricated by high-pressure torsion and reinforced with 2D and 3D nano-particles, funded by National Science Centre Poland under nb. 2020/37/B/ST5/01837 . Two of the authors were supported by the European Research Council under ERC Grant Agreement No. 267464 -SPDMETALS (YH and TGL).
Publisher Copyright:
© 2023
Keywords:
Aluminium, Carbon nanotubes, High-pressure torsion, Nanocomposites, Thermal stability
Identifiers
Local EPrints ID: 481599
URI: http://eprints.soton.ac.uk/id/eprint/481599
ISSN: 0925-8388
PURE UUID: 21e6b225-bd83-43a7-8024-f7935088be99
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Date deposited: 04 Sep 2023 16:52
Last modified: 18 Mar 2024 03:19
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Contributors
Author:
Maria Emerla
Author:
Warsaw Technology
Author:
Yi Huang
Author:
Malgorzata Lewandowska
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