Current State-of-the-Art of Metal Matrix Composites

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: closed (31 July 2022) | Viewed by 2394

Special Issue Editor

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Interests: metal matrix composites; material characterization; microstructures; mechanical properties; laser additive manufacturing; strengthening mechanisms
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is devoted to showing the current state-of-the-art of metal matrix composites in various fields. Metal matrix composites (MMCs) are composed of metal matrix and other heterogeneous materials with various properties, exhibiting significantly enhanced performance through synergistic effects. The enhanced performances include high strength and modulus, low density and thermal expansion coefficient, excellent wear resistance, fatigue resistance, creep resistance, good thermal conductivity, and dimensional stability. During the past half-century, breakthroughs and innovations in material system design, fabrication methods, and processing technologies of MMCs have been achieved. MMCs have also been widely used in aerospace, aviation, electronics, nuclear power, and ground transportation. Recently, the high-throughput research strategy has been used on MMCs to shorten the research cycle based on material genetic engineering ideas. This Issue particularly welcomes works related to the low-cost fabrication and processing, novel microstructure design and evolution, mechanical or functional behavior, modification treatment, simulation, advanced characterization,, and interface study at the atomic scale of MMCs. We hope that this Special Issue with high-level research papers will play a positive role in promoting the rapid development of MMCs.

Dr. Qi An
Guest Editor

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Published Papers (1 paper)

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Research

10 pages, 2739 KiB  
Article
Preparation and Electrocatalytic Activity of a Cobalt Mixed Nitrogen 3D Carbon Nanostructure @ Carbon Felt toward an All-Vanadium Redox Flow Battery
by Jun Su, Zongyang Li, Longlong Hao and Lilu Qin
Appl. Sci. 2022, 12(5), 2304; https://doi.org/10.3390/app12052304 - 22 Feb 2022
Cited by 8 | Viewed by 1800
Abstract
All-vanadium redox flow batteries (VRFBs), with good operation flexibility and scalability, have been regarded as one of the most competitive substitutes for large-scale energy storage. However, because of the low electrochemical activities of traditional electrodes such as carbon felt and graphite felt, they [...] Read more.
All-vanadium redox flow batteries (VRFBs), with good operation flexibility and scalability, have been regarded as one of the most competitive substitutes for large-scale energy storage. However, because of the low electrochemical activities of traditional electrodes such as carbon felt and graphite felt, they will impede the interfacial charge transfer processes and decrease the efficiencies of VRFBs. In this work, Co-MOF (ZIF-67) was prepared as a precursor, and a cobalt mixed nitrogen 3D carbon nanostructure and carbon felt (Co-CN@CF) was prepared by chemical reaction and used in VRFBs as electrodes. With the unique structure and high efficiency catalyst on the carbon felt, the Co-CN@CF exhibited excellent electrochemical activity toward the VO2+/VO2+ redox couple in the VRFB, with an average cell voltage efficiency (VE) of 86% and an energy efficiency (EE) of 82% at 80 mA cm−2, which was increased by more than 10% compared with the traditional carbon felt. VRFBs with a Co-CN@CF electrode also showed much better long-term stability (over 1000 cycles) compared with the battery with a pristine CF electrode. Full article
(This article belongs to the Special Issue Current State-of-the-Art of Metal Matrix Composites)
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