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Advanced High-Performance Metal Matrix Composites (MMCs)
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Advanced High-Performance Metal Matrix Composites (MMCs)

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: 20 September 2024 | Viewed by 3475

Special Issue Editors

Dr. Behzad Sadeghi

E-Mail Website
Guest Editor
Department of Innovation Engineering, University of Salento, Via per Arnesano, 73100 Lecce, Italy
Interests: microstructure-process-property relationships; small punch creep test in high temperature aluminum (HITEMAL); high-performance metal matrix composite (MMCs); smart dry mechanical powder processing; 1-hydrogen production & embrittlement in steel; ni based alloys
Dr. Catalin I. Pruncu

E-Mail Website
Guest Editor
Departimento di Meccanica, Matematica e Management, Politecnico di Bari, 70125 Bari, Italy
Interests: numerical simulation; contact mechanics; engineering systems
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue will be driven to investigate high-performance metal matrix composites (MMCs) with solutions borrowed from biological materials such as nacre of shell, tuning and retention of unique nanoparticle physical properties in composites, heterogeneous structuring of materials across multiple length scales, and smart powder processing to produce advance fed materials with the capability of concurrently improving the strength and ductility of advanced materials. This Special Issue aims to:

(1) Fabricate and develop high-performance metal matrix composites, especially aluminum-based composites, emphasizing and tailoring the architectural designs to overcome the trade-off of strength and ductility in metal matrix composites, as a critical need of automotive and aerospace engineering fields.

(2) Study and develop a heterostructure strategy for toughening particulate-reinforced metal matrix composites through the powder assembly route of powder metallurgy to design the architecture of various particulate metal matrix composites with high strength and high ductility.

(3) Develop new engineered particulates with tailored properties using dry particle coating (as a smart powder processing) for use as advanced high strength-to-weight ratio metal matrix composite materials; this includes high effective core–shell structures, advanced powder materials with deactivated sintering properties, highly enhanced discharge capacity retention in lithium-ion batteries, and attaining an excellent uniform dispersion with maximum structural integrity, especially for nano-carbons reinforcements (CNTs and graphene).

(4) Studying and focusing on the changing properties that occur throughout the processing and operation of metal matrix composites to seek widely-applicable property relationships, emphasizing and utilizing the opportunities made available by core–shelled powders prepared by smart dry processing.

Dr. Behzad Sadeghi
Dr. Catalin I. Pruncu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • high-performance MMCs
  • tailoring the microstructure
  • architecture design
  • strength–ductility trade-off
  • aluminum-based matrix composites
  • nanocarbons (CNT, Graphene, etc.)
  • dry powder processing

Published Papers (3 papers)

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Editorial

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2 pages, 164 KiB  
Editorial
Advancing High-Performance Metal Matrix Composites: Uniting Nature’s Design and Engineering Innovation
by Behzad Sadeghi
Materials 2023, 16(18), 6077; https://doi.org/10.3390/ma16186077 - 05 Sep 2023
Viewed by 863
Abstract
We are pleased to present this Special Issue entitled “Advanced High-Performance Metal Matrix Composites (MMCs),” which explores promising materials science that will change everything from aerospace to automotive technology [...] Full article
(This article belongs to the Special Issue Advanced High-Performance Metal Matrix Composites (MMCs))

Research

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13 pages, 22361 KiB  
Article
Preparation of NiAl-AlMg6 Functionally Graded Composite Using the Energy of a Highly Exothermic Ti-C Mixture during Self-Propagating High-Temperature Synthesis
by Igor Denisov, Stepan Seropyan, Andrey Malakhov and Denis Shakhray
Materials 2023, 16(24), 7584; https://doi.org/10.3390/ma16247584 - 10 Dec 2023
Viewed by 655
Abstract
A functionally graded composite NiAl-AlMg6 was prepared using the pressure of gaseous reaction products (impurity gases) produced during the synthesis of reactive powders in a sealed reactor. It has been shown that this method can be used to prepare a NiAl/AlMg6 composite with [...] Read more.
A functionally graded composite NiAl-AlMg6 was prepared using the pressure of gaseous reaction products (impurity gases) produced during the synthesis of reactive powders in a sealed reactor. It has been shown that this method can be used to prepare a NiAl/AlMg6 composite with both chaotically oriented pores in the NiAl layer and unidirectionally oriented pores (lotus-type pores). The pore shape in NiAl was found to be dependent on the pressure of the impurity gases and hydrogen present in the starting titanium powder. A mechanism for pore formation in NiAl and AlMg6 composite during SHS is proposed. Thus, functionally graded high-temperature composites can be produced by SHS in a sealed reactor using the chemical reaction energy and the pressure of impurity gases and hydrogen. Additionally, minimizing the influence of impurity gases on the contact zone increases the interface area between NiAl and AlMg6. Full article
(This article belongs to the Special Issue Advanced High-Performance Metal Matrix Composites (MMCs))
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Review

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27 pages, 2964 KiB  
Review
Reviewing the Integrated Design Approach for Augmenting Strength and Toughness at Macro- and Micro-Scale in High-Performance Advanced Composites
by Behzad Sadeghi and Pasquale Daniele Cavaliere
Materials 2023, 16(17), 5745; https://doi.org/10.3390/ma16175745 - 22 Aug 2023
Cited by 4 | Viewed by 1383
Abstract
In response to the growing demand for high-strength and high-toughness materials in industries such as aerospace and automotive, there is a need for metal matrix composites (MMCs) that can simultaneously increase strength and toughness. The mechanical properties of MMCs depend not only on [...] Read more.
In response to the growing demand for high-strength and high-toughness materials in industries such as aerospace and automotive, there is a need for metal matrix composites (MMCs) that can simultaneously increase strength and toughness. The mechanical properties of MMCs depend not only on the content of reinforcing elements, but also on the architecture of the composite (shape, size, and spatial distribution). This paper focuses on the design configurations of MMCs, which include both the configurations resulting from the reinforcements and the inherent heterogeneity of the matrix itself. Such high-performance MMCs exhibit excellent mechanical properties, such as high strength, plasticity, and fracture toughness. These properties, which are not present in conventional homogeneous materials, are mainly due to the synergistic effects resulting from the interactions between the internal components, including stress–strain gradients, geometrically necessary dislocations, and unique interfacial behavior. Among them, aluminum matrix composites (AMCs) are of particular importance due to their potential for weight reduction and performance enhancement in aerospace, electronics, and electric vehicles. However, the challenge lies in the inverse relationship between strength and toughness, which hinders the widespread use and large-scale development of MMCs. Composite material design plays a critical role in simultaneously improving strength and toughness. This review examines the advantages of toughness, toughness mechanisms, toughness distribution properties, and structural parameters in the development of composite structures. The development of synthetic composites with homogeneous structural designs inspired by biological composites such as bone offers insights into achieving exceptional strength and toughness in lightweight structures. In addition, understanding fracture behavior and toughness mechanisms in heterogeneous nanostructures is critical to advancing the field of metal matrix composites. The future development direction of architectural composites and the design of the reinforcement and toughness of metal matrix composites based on energy dissipation theory are also proposed. In conclusion, the design of composite architectures holds enormous potential for the development of composites with excellent strength and toughness to meet the requirements of lightweight structures in various industries. Full article
(This article belongs to the Special Issue Advanced High-Performance Metal Matrix Composites (MMCs))
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