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Metals
Special Issues
Functional Ceramics and Related Advanced Metal Matrix Composites
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Functional Ceramics and Related Advanced Metal Matrix Composites

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metallic Functional Materials".

Deadline for manuscript submissions: 20 January 2025 | Viewed by 1464

Special Issue Editors

Dr. Chang Zhou

E-Mail Website
Guest Editor
State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, China
Interests: composites; interface; multi-scale design; functional ceramics; thermo-physical properties; numerical simulation; strengthening mechanism
Special Issues, Collections and Topics in MDPI journals
Dr. Naike Shi

E-Mail Website
Guest Editor
School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
Interests: oxides; functional material; negative thermal expansion

Special Issue Information

Dear Colleagues,

A metal matrix composite material is made from a combination or mixture of at least two constituent materials with significantly different properties whose combination forms a new material in which its properties differ from the individual constituents. On a microscopic scale the individual constituents of a composite can still be identified distinctly and separate from each other. Composites are multiphase materials which are normally classified as matrix and dispersed/secondary/reinforcing phases. The properties of composite materials are related to the constituent properties and the relative amounts of the individual constituents such as the composite density, tensile strength, modulus of elasticity, hardness, and coefficient of thermal expansion. Adding functional ceramics to metals will bring some new properties.The properties of MMCs can be designed to fulfill requirements that are specific to and dependent on the application.

The goal of this Research Topic is to highlight recent developments in functional ceramics and related metal matrix composites with excellent thermal, electrical, magnetic properties such as high thermal conductivity, low thermal expansion, high electrical conductivity and giant magnetocaloric properties. All aspects related to the theoretical design, numerical simulation, microstructure characterization, advanced fabrication, and strengthening mechanisms are covered. We welcome high-quality original research and review articles.

Dr. Chang Zhou
Dr. Naike Shi
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. Metals is an international peer-reviewed open access monthly 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

  • metal matrix composites
  • multi-scale design
  • interfacial desgin
  • functional ceramics
  • thermo-physical properties
  • numerical simulation
  • strengthening mechanism

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Published Papers (2 papers)

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Research

16 pages, 32892 KiB  
Article
Structure and Properties of Ti-Al Intermetallic Coatings Reinforced with an Aluminum Oxide Filler
by Artem Igorevich Bogdanov, Vitaliy Pavlovich Kulevich, Victor Georgievich Shmorgun and Leonid Moiseevich Gurevich
Metals 2024, 14(12), 1336; https://doi.org/10.3390/met14121336 - 26 Nov 2024
Viewed by 234
Abstract
In this paper, the results of a study of the structure and phase composition of the hot-dip aluminizing coatings formed on the commercially pure titanium surface in AW-6063 aluminum alloy melt after heat treatment at 700 and 850 °C are presented. It is [...] Read more.
In this paper, the results of a study of the structure and phase composition of the hot-dip aluminizing coatings formed on the commercially pure titanium surface in AW-6063 aluminum alloy melt after heat treatment at 700 and 850 °C are presented. It is shown that as a result of aluminizing on the titanium surface, a homogeneous coating 30–40 µm thick without defects is formed. The hot-dip aluminizing coating consists of aluminum and the intermetallic compound TiAl3, located at the boundary with the substrate. Heat treatment results in the formation of a heterogeneous coating structure: its outer layer has a frame-type structure consisting of TiAl3 particles surrounded by an Al2O3 + TiO2 grid, and the inner continuous layer adjacent to the titanium consists of TiAl2, TiAl, and Ti3Al intermetallic layers. Increasing in the heat treatment temperature and/or holding time results in an increase in the thickness of both the outer and boundary layers of the coating. A mechanism for the formation of the coating structure via heat treatment is proposed. The scratch test method was used to evaluate the cohesive and adhesive strength of the coatings, and their scratch hardness was determined, which averaged 200 MPa. It was shown that the coating structure formed during heat treatment at 850 °C ensures higher resistance to cohesive failure. Full article
(This article belongs to the Special Issue Functional Ceramics and Related Advanced Metal Matrix Composites)
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13 pages, 2301 KiB  
Article
Preparation and Property Modulation of Multi-Grit Diamond/Aluminum Composites Based on Interfacial Strategy
by Hao Wu, Sen Yang, Yang Chen, Xiaoxuan He and Changrui Wang
Metals 2024, 14(7), 801; https://doi.org/10.3390/met14070801 - 9 Jul 2024
Viewed by 822
Abstract
The development of electronic devices has a tendency to become more complicated in structure, more integrated in function, and smaller in size. The heat flow density of components continues to escalate, which urgently requires the development of heat sink materials with high thermal [...] Read more.
The development of electronic devices has a tendency to become more complicated in structure, more integrated in function, and smaller in size. The heat flow density of components continues to escalate, which urgently requires the development of heat sink materials with high thermal conductivity and a low coefficient of expansion. Diamond/aluminum composites have become the research hotspot of thermal management materials with excellent thermophysical and mechanical properties, taking into account the advantages of light weight. In this paper, diamond/Al composites are prepared by combining aluminum as matrix and diamond reinforcement through the discharge plasma sintering (SPS) method. The micro-interfacial bonding state of diamond and aluminum is changed by adjusting the particle size of diamond, and the macroscopic morphology performance of the composites is regulated. Through this, the flexible design of diamond/Al performance can be achieved. As a result, when 150 μm diamond powder and A1-12Si powder were used for the composite, the thermal conductivity of the obtained specimens was up to 660.1 W/mK, and the coefficient of thermal expansion was 5.63 × 10−6/K, which was a good match for the semiconductor material. At the same time, the bending strength is 304.6 MPa, which can satisfy the performance requirements of heat-sinking materials in the field of electronic packaging. Full article
(This article belongs to the Special Issue Functional Ceramics and Related Advanced Metal Matrix Composites)
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