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Metals
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New Trend in Metal-Ceramic Composite Materials
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New Trend in Metal-Ceramic Composite Materials

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Powder Metallurgy".

Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 12060

Special Issue Editors

Dr. Seungchan Cho

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Guest Editor
Composites Research Division, Korea Institute of Materials Science (KIMS), Changwon 51508, South Korea
Interests: Metal matrix composites; Ceramic matrix composites; Casting; Powder metallurgy
Dr. Junghwan Kim

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Guest Editor
Composites Research Division, Korea Institute of Materials Science (KIMS),
Interests: Metal matrix composites; Advanced functional composites; Thermodynamics
Prof. Dr. Jo Ilguk

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Guest Editor
Advanced Materials Engineering, Dong-Eui University, Busan 47340, South Korea
Interests: Aluminum matrix composites; Metal casting; additive manufacturing

Special Issue Information

Dear Colleagues,

Metal matrix composites (MMCs) are commonly produced by combining tough metallic matrix with hard ceramic or soft reinforcement materials. Besides traditional MMCs, novel MMCs containing advanced metal-ceramic composites with significant potential for next generation engineering applications are encouraged.

Design, manufacturing and the extinguished properties of new applications for metal-ceramic composites are high perspectives for modern MMC science and engineering. Through research on advanced design technology, manufacturing technology, interface control technology, and multi-scale analysis technology, researchers aim to improve the structural performance of advanced composite materials and realize new functional properties.

This Special Issue on “New Trend in Metal-Ceramic Composite Materials” intends to collect the latest developments in the field, written by well-known researchers who have contributed significantly to the research field of the fabrication, characterization, and application of MMCs.

To create a new future convergence industry and respond to the 4.0 industry, we ask for the participation of related industry-academic experts, students, etc.

Dr. Seungchan Cho
Dr. Junghwan Kim
Prof. Dr. Jo Ilguk
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
  • Additive manufacturing
  • Powder metallurgy
  • Casting Infiltration
  • Interphase
  • Interface control
  • Microstructure tailoring
  • Multi-scale modeling
  • Layered structure

Published Papers (5 papers)

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Research

11 pages, 1757 KiB  
Article
Investigation of Al-B4C Metal Matrix Composites Produced by Friction Stir Additive Processing
by Martin Zubcak, Jaroslav Soltes, Mariia Zimina, Thomas Weinberger and Norbert Enzinger
Metals 2021, 11(12), 2020; https://doi.org/10.3390/met11122020 - 14 Dec 2021
Cited by 9 | Viewed by 3043
Abstract
Aluminium—boron carbide metal matrix composites (Al-B4C MMCs) belong to the class of materials extensively used in the nuclear industry as a thermal neutron absorber in spent fuel casks. This article investigates a novel production method of Al-B4C MMCs—Friction Stir [...] Read more.
Aluminium—boron carbide metal matrix composites (Al-B4C MMCs) belong to the class of materials extensively used in the nuclear industry as a thermal neutron absorber in spent fuel casks. This article investigates a novel production method of Al-B4C MMCs—Friction Stir Additive Processing (FSAP)—as an alternative production method to casting or sintering. FSAP is derived from friction stir welding, which can be used to local modifications of microstructure, or it can be used to incorporate the second phase into the processed material. During this study, a variant of FSAP for MMC production was proposed, and its mechanical and thermal neutron absorbing properties have been investigated. Further, the influence of neutron irradiation on mechanical properties has been studied. Results show that FSAP can successfully produce Al-B4C MMCs with 7 mm thickness. Neutron irradiation causes only a slight increase in hardness, while its effect on tensile properties remains inconclusive. Full article
(This article belongs to the Special Issue New Trend in Metal-Ceramic Composite Materials)
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15 pages, 7031 KiB  
Article
In Situ Synthesis of Core-Shell-Structured SiCp Reinforcements in Aluminium Matrix Composites by Powder Metallurgy
by Xinghua Ji, Cheng Zhang and Shufeng Li
Metals 2021, 11(8), 1201; https://doi.org/10.3390/met11081201 - 28 Jul 2021
Cited by 2 | Viewed by 1544
Abstract
SiCp reinforced aluminium matrix composites (AMCs), which are widely used in the aerospace, automotive, and electronic packaging fields along with others, are usually prepared by ex situ techniques. However, interfacial contamination and poor wettability of the ex situ techniques make further improvement in [...] Read more.
SiCp reinforced aluminium matrix composites (AMCs), which are widely used in the aerospace, automotive, and electronic packaging fields along with others, are usually prepared by ex situ techniques. However, interfacial contamination and poor wettability of the ex situ techniques make further improvement in their comprehensive performance difficult. In this paper, SiCp reinforced AMCs with theoretical volume fractions of 15%, 20%, and 30% are prepared by powder metallurgy and in situ reaction via an Al-Si-C system. Moreover, a combined method of external addition and an in situ method is used to investigate the synergistic effect of ex situ and in situ SiCp on AMCs. SiC particles can be formed by an indirect reaction: 4Al + 3C → Al4C3 and Al4C3 + 3Si → 3SiC + 4Al. This reaction is mainly through the diffusion of Si, in which Si diffuses around Al4C3 and then reacts with Al4C3 to form SiCp. The in situ SiC particles have a smooth boundary, and the particle size is approximately 1–3 μm. A core-shell structure having good bonding with an aluminium matrix was generated, which consists of an ex situ SiC core and an in situ SiC shell with a thickness of 1–5 μm. The yield strength and ultimate tensile strength of in situ SiCp reinforced AMCs can be significantly increased with a constant ductility by adding 5% ex situ SiCp for Al-28Si-7C. The graphite particle size has a significant effect on the properties of the alloy. A criterion to determine whether Al4C3 is a complete reaction is achieved, and the forming mechanism of the core-shell structure is analysed. Full article
(This article belongs to the Special Issue New Trend in Metal-Ceramic Composite Materials)
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10 pages, 5653 KiB  
Article
Effect of Boron Carbide Addition on Wear Resistance of Aluminum Matrix Composites Fabricated by Stir Casting and Hot Rolling Processes
by Donghyun Lee, Junghwan Kim, Sang-Kwan Lee, Yangdo Kim, Sang-Bok Lee and Seungchan Cho
Metals 2021, 11(6), 989; https://doi.org/10.3390/met11060989 - 21 Jun 2021
Cited by 8 | Viewed by 2188
Abstract
In this study, to evaluate the effect of boron carbide (B4C) addition on the wear performance of aluminum (Al), Al6061 and 5, 10, and 20 vol.% B4C/Al6061 composites were manufactured using the stir casting and hot rolling processes. B [...] Read more.
In this study, to evaluate the effect of boron carbide (B4C) addition on the wear performance of aluminum (Al), Al6061 and 5, 10, and 20 vol.% B4C/Al6061 composites were manufactured using the stir casting and hot rolling processes. B4C particles were randomly dispersed during the stir casting process; then, B4C particles were arranged in the rolling direction using a hot rolling process to further improve the B4C dispersion and wear resistance of the composites. Furthermore, a continuous interfacial layer between B4C and the Al6061 matrix was generated by diffusion of titanium (Ti) and chromium (Cr) atoms contained in the Al6061 alloy. Wear depth and width of the composites decreased with increasing B4C content. Furthermore, with B4C addition, coefficient of friction (COF) improved as compared with that of Al6061. The results indicate that interface-controlled, well-aligned B4C particles in the friction direction can effectively increase the wear properties of Al alloys and improve their hardness. Full article
(This article belongs to the Special Issue New Trend in Metal-Ceramic Composite Materials)
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10 pages, 2129 KiB  
Article
Phase Formation and Wear Resistance of Carbon-Doped TiZrN Nanocomposite Coatings by Laser Carburization
by Seonghoon Kim, Taewoo Kim, Eunpyo Hong, Ilguk Jo, Jaeyoung Kim and Heesoo Lee
Metals 2021, 11(4), 590; https://doi.org/10.3390/met11040590 - 04 Apr 2021
Cited by 5 | Viewed by 1808
Abstract
Carbon-doped TiZrN nanocomposite coatings were investigated for phase formation and wear behavior. They were prepared by laser carburization using carbon paste, and the thermal energy of the pulsed laser was limited to the range of 20 to 50%. X-ray photoelectron spectroscopy analysis revealed [...] Read more.
Carbon-doped TiZrN nanocomposite coatings were investigated for phase formation and wear behavior. They were prepared by laser carburization using carbon paste, and the thermal energy of the pulsed laser was limited to the range of 20 to 50%. X-ray photoelectron spectroscopy analysis revealed that the ratio of carbide (TiC, ZrC) increased as the thermal energy of the laser increased. The sp2/sp3 ratio increased by approximately 16% when the laser thermal energy was raised from 30 to 40%, and the formation of amorphous carbon was confirmed in the carbon-doped TiZrN coatings. As a result of microstructural analysis, the carbon-doped TiZrN nanocomposite was formed by an increase of hybrid bonds in expanded localized carbon clusters. Wear resistance was evaluated using a ball-on-disc tester, which showed that the friction coefficient decreased from 0.74 to 0.11 and the wear rate decreased from 7.63 × 10−6 mm3 (Nm)−1 to 1.26 × 10−6 mm3 (Nm)−1. In particular, the friction coefficient and wear rate improved by 71 and 66%, respectively, owing to the formation of carbon-doped TiZrN nanocomposite with amorphous carbon while the thermal energy was increased from 30 to 40%. Full article
(This article belongs to the Special Issue New Trend in Metal-Ceramic Composite Materials)
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12 pages, 5665 KiB  
Article
Mechanical and Thermal Neutron Absorbing Properties of B4C/Aluminum Alloy Composites Fabricated by Stir Casting and Hot Rolling Process
by Donghyun Lee, Junghwan Kim, Byeongjin Park, Ilguk Jo, Sang-Kwan Lee, Yangdo Kim, Sang-Bok Lee and Seungchan Cho
Metals 2021, 11(3), 413; https://doi.org/10.3390/met11030413 - 03 Mar 2021
Cited by 16 | Viewed by 2365
Abstract
In this study, to fabricate neutron shielding material, boron carbide (B4C)-reinforced aluminum (Al) alloy composites were successfully fabricated by stir casting followed by a hot rolling process. Microstructural analysis of B4C/Al6061 composites with different volume fractions (5, 10, 20, [...] Read more.
In this study, to fabricate neutron shielding material, boron carbide (B4C)-reinforced aluminum (Al) alloy composites were successfully fabricated by stir casting followed by a hot rolling process. Microstructural analysis of B4C/Al6061 composites with different volume fractions (5, 10, 20, 25, and 30%) revealed that the composites had volume ratios similar to the target volume ratios of B4C. Furthermore, B4C reinforcements were uniformly dispersed in the Al matrix, forming multi-interfacial layers of Al4C3/(Ti,Cr)B2. The interfacial layer generated during stir casting maintained its own structure after the hot rolling process, indicating strong interfacial bonding strength. The tensile strengths of the B4C/Al6061 composites increased to 20 vol.% and stayed above the value for Al6061, even reaching 30 vol.%. The measured thermal neutron shielding rate increased with increasing B4C content, and the highest thermal neutron shielding rate was observed at 30 vol.% composite, which corresponds to 95.6% neutron shielding at 0.158-cm thickness. Full article
(This article belongs to the Special Issue New Trend in Metal-Ceramic Composite Materials)
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