Metal-Matrix Nanocomposites and Their Applications (2nd Edition)

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanocomposite Materials".

Deadline for manuscript submissions: closed (30 June 2024) | Viewed by 1995

Special Issue Editor


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Guest Editor
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China
Interests: metal matrix nanocomposite; carbonaceous materials; interface modification; material characterization; mechanical property; physical property
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Special Issue Information

Dear Colleagues,

Following the success of the first edition of the Nanomaterials Special Issue “Metal-Matrix Nanocomposites and Their Applications”, in which a total of 8 papers were published (https://www.mdpi.com/journal/nanomaterials/special_issues/metal_matrix_nanocomposite), we are delighted to announce the launch of a second edition.

There is increasing interest in the development of metal matrix nanocomposites since the addition of nanoparticles, nanowires, nanotubes or nanolayers can lead to an extraordinarily high strength-to-weight ratio and enhanced mechanical, physical and chemical properties over conventional materials. For metal matrix nanocomposites, critical challenges involve the dispersion of nano-reinforcing phases, the control and optimization of interface structure, the theoretical mechanisms of mechanical and functional properties, etc. Furthermore, their excellent and tailorable properties make them very attractive for a variety of applications, such as aerospace, transportation, electronics, thermal management, etc.

This Special Issue will highlight the latest advances in metal matrix processing, interface modification, microstructure characterization, properties and usage in a myriad of applications.

Original theoretical and experimental research articles, communications and reviews are welcome. Research topics of interest include (but are not limited to) the following:

  • Metal matrix nanocomposites (aluminum, magnesium, titanium, copper, or iron matrix, etc.);
  • Layered nanocomposites (multiple nanolayers composed of various materials or nanolayer sandwiches bonded to a metal matrix core);
  • Nanoscale interface modification;
  • Processing;
  • Microstructure characterization;
  • Properties;
  • Application.

We look forward to receiving your contributions.

Prof. Dr. Qiang Zhang
Guest Editor

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Keywords

  • metal matrix nanocomposite
  • layered nanocomposites
  • nanoscale interface modification
  • processing
  • microstructure characterization
  • properties
  • application

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Published Papers (2 papers)

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Research

14 pages, 4898 KiB  
Article
Influence of Heat Treatment on Microstructure, Mechanical Properties, and Damping Behavior of 2024 Aluminum Matrix Composites Reinforced by Carbon Nanoparticles
by Wilson Rativa-Parada and Sabrina Nilufar
Nanomaterials 2024, 14(16), 1342; https://doi.org/10.3390/nano14161342 - 14 Aug 2024
Viewed by 683
Abstract
Nanocarbon 2024 aluminum composites with 0.5 vol. % and 1 vol. % of graphene nanoplatelets and 1 vol. % and 2 vol. % of activated nanocarbon were manufactured through induction casting. The effect of the reinforcements and heat treatment on the performance of [...] Read more.
Nanocarbon 2024 aluminum composites with 0.5 vol. % and 1 vol. % of graphene nanoplatelets and 1 vol. % and 2 vol. % of activated nanocarbon were manufactured through induction casting. The effect of the reinforcements and heat treatment on the performance of the composites was examined. Analysis of the microstructure of the composites before heat treatment suggested the homogeneous dispersion of reinforcements and the absence of secondary carbide or oxide phases. The presence of carbon nanoparticles had a significant impact on the microstructural characteristics of the matrix. This behavior was further enhanced after the heat treatment. The mechanical and damping properties were evaluated with the uniaxial compression test, micro Vickers hardness test, and dynamic mechanical analysis. The yield strength and ultimate strength were improved up to 28% (1 vol. % of graphene nanoplatelets) and 45% (0.5 vol. % of graphene nanoplatelets), respectively, compared to the as-cast 2024 aluminum. Similarly, compared to the heat-treated 2024 aluminum, the composites increased up to 56% (0.5 vol. % of graphene nanoplatelets) and 57% (0.5 vol. % of graphene nanoplatelets) in yield strength and ultimate strength, respectively. Likewise, the hardness of the samples was up to 33% (1 vol. % of graphene nanoplatelets) higher than that of the as-cast 2024 aluminum, and up to 31% (2 vol. % of activated nanocarbon) with respect to the heat-treated 2024 aluminum. The damping properties of the nanocarbon–aluminum composites were determined at variable temperatures and strain amplitudes. The results indicate that damping properties improved for the composites without heat treatment. As a result, it is demonstrated that using small volume fractions of nanocarbon allotropes enhanced the mechanical properties for both with- and without-heat treatment with a limited loss of plastic deformation before failure for the 2024 aluminum matrix. Full article
(This article belongs to the Special Issue Metal-Matrix Nanocomposites and Their Applications (2nd Edition))
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14 pages, 10117 KiB  
Article
Effects of the In Situ Growth of CNTs on Ti-Coated Diamond Surfaces on the Mechanical Properties of Diamond/Aluminum Composites
by Hao Wu, Ping Zhu, Yixiao Xia, Yifu Ma, Junyao Ding, Huasong Gou, Qiang Zhang, Sen Yang and Gaohui Wu
Nanomaterials 2024, 14(7), 640; https://doi.org/10.3390/nano14070640 - 7 Apr 2024
Viewed by 1042
Abstract
Diamond/aluminum composites have attracted significant attention as novel thermal management materials, with their interfacial bonding state and configuration playing a crucial role in determining their thermal conductivity and mechanical properties. The present work aims to evaluate the bending strength and thermal conductivity of [...] Read more.
Diamond/aluminum composites have attracted significant attention as novel thermal management materials, with their interfacial bonding state and configuration playing a crucial role in determining their thermal conductivity and mechanical properties. The present work aims to evaluate the bending strength and thermal conductivity of CNT-modified Ti-coated diamond/aluminum composites with multi-scale structures. The Fe catalyst was encapsulated on the surface of Ti-coated diamond particles using the solution impregnation method, and CNTs were grown in situ on the surface of Ti-coated diamond particles using the plasma-enhanced chemical vapor deposition (PECVD) method. We investigated the influence of interface structure on the thermal conductivity and mechanical properties of diamond/aluminum composites. The results show that the CNT-modified Ti-coated diamond/aluminum composite exhibits excellent bending strength, reaching up to 281 MPa, compared to uncoated diamond/aluminum composites and Ti-coated diamond/aluminum composites. The selective bonding between diamond and aluminum was improved by the interfacial reaction between Ti and diamond particles, as well as between CNT and Al. This led to the enhanced mechanical properties of Ti-coated diamond/aluminum composites while maintaining acceptable thermal conductivity. This work provides insights into the interface’s configuration design and the performance optimization of diamond/metal composites for thermal management. Full article
(This article belongs to the Special Issue Metal-Matrix Nanocomposites and Their Applications (2nd Edition))
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