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Applications, Preparation and Characterization of Metal-Ceramic Nanocomposites

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A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced and Functional Ceramics and Glasses".

Deadline for manuscript submissions: closed (20 October 2022) | Viewed by 13028

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Special Issue Editor

Dr. Antonello Marocco

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Guest Editor

Department of Civil and Mechanical Engineering, Università degli Studi di Cassino e del Lazio Meridionale, UNICAS, Cassino, Italy
Interests: zeolites; advanced ceramics; metal–ceramic composites; nanostructured materials; adsorption; magnetic ceramics; lunar dust simulant

Special Issue Information

Dear colleagues,

In past times, it seemed that the technologies concerning the development, production and fields of use of metallic and ceramic materials had to be decidedly different from each other. Actually, the metallurgical and the ceramic sectors remained two deeply distinct realities, although their conceptual approaches were partly in common. The occurrence of metal-ceramic composite materials upset this point of view, as they may offer different, more advantageous solutions in many practical situations. This possibility arises from the almost infinite potential offered by nanotechnologies, which allows the scientific fantasy of researchers and technologist to no longer move in watertight compartments. The development of metal-ceramic composite materials occurred by setting up innovative interdisciplinary production techniques. Such techniques have multifarious goals such as: 1) their ecological sustainability; 2) the improved technological performance of the finished product; 3) the cost containment. On the whole, metal-ceramic composite materials exhibit a huge potential for practical applications and exploiting a good part of it represents a great challenge for the researchers and technologists all over the world. Thus, this special issue of Materials aims at giving to the reader a faithful portray of the state of the art of the research in the field of metal-ceramic composite materials by collecting valuable and, possibly, innovative works and reviews concerning all the aspects of their science and technology. In particular, knowledge regarding the development, characterization and use of nanostructured metal-ceramic composite materials, where the metal and ceramic phase are assembled effectively, are welcomed. The basic idea is to break down the cultural frontiers that separate researchers and technologists studying ceramic matrix rather than metallic matrix metal ceramic composites, thus creating a collection of works which will act as reference in the next few years. Hoping that you will be involved in the same my enthusiasm, I look forward to receiving numerous works from you.

Best regards

Dr. Antonello Marocco

Guest Editor

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Keywords

Metal-Ceramic Composites
Nanomaterials
Structural Properties
Functional Properties
Innovative Processes
Materials Characterization
Applications

Published Papers (5 papers)

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Research

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15 pages, 5310 KiB

Open AccessArticle

Residual Stress Induced by Addition of Nanosized TiC in Titanium Matrix Composite

by Hanna Myalska-Głowacka, Bartosz Chmiela, Marcin Godzierz and Maria Sozańska

Materials 2022, 15(7), 2517; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15072517 - 29 Mar 2022

Cited by 3 | Viewed by 1805

Abstract

A hot pressing process was employed to produce titanium-based composites. Nanosized TiC particles were incorporated in order to improve mechanical properties of the base material. The amount of nanosized additions in the composites was 0.5, 1.0, and 2.0 wt %, respectively. Moreover, a TiB phase was produced by in situ method during sintering process. The microstructure of the Ti–TiB–TiC composites was characterized by scanning electron microscopy (SEM), electron probe microanalysis (EPMA), electron backscatter diffraction (EBSD), and X-ray diffraction (XRD) techniques. Due to the hot pressing process the morphology of primary TiC particles was changed. Observed changes in the size and shape of the reinforcing phase suggest the transformation of primary carbides into secondary carbides. Moreover, an in situ formation of TiB phase was observed in the material. Additionally, residual stress measurements were performed and revealed a mostly compressive nature with the fine contribution of shear. With an increase in TiC content, linear stress decreased, which was also related with the presence of the TiB phase. Full article

(This article belongs to the Special Issue Applications, Preparation and Characterization of Metal-Ceramic Nanocomposites)

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12 pages, 4838 KiB

Open AccessArticle

Sintering and Mechanical Properties of (SiC + TiC_x)_p/Fe Composites Synthesized from Ti₃AlC₂, SiC, and Fe Powders

by Mingtao Wang, Zecheng Wang, Zhiyue Yang, Jianfeng Jin, Guoping Ling and Yaping Zong

Materials 2021, 14(9), 2453; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14092453 - 09 May 2021

Cited by 2 | Viewed by 1896

Abstract

Ceramic-particle-reinforced iron matrix composites (CPR-IMCs) have been used in many fields due to their excellent performance. In this study, using the fast resistance-sintering technology developed by our team, iron matrix composites (IMCs) reinforced by both SiC and TiC_x particles were fabricated via the addition of SiC and Ti₃AlC₂ particles, and the resulting relative densities of the sintering products were up to 98%. The XRD and EDS analyses confirmed the in situ formation of the TiC_x from the decomposition of Ti₃AlC₂ during sintering. A significant hybrid reinforcing effect was discovered in the (SiC + TiC_x)_p/Fe composites, where the experimental strength and hardness of the (SiC + TiC_x)_p/Fe composites were higher than the composites of monolithic SiC_p/Fe and (TiC_x)_p/Fe. While, under the condition of constant particle content, the elongation of the samples reinforced using TiC_x was the best, those reinforced by SiC was the lowest, and those reinforced by (SiC + TiC_x) fell in between, which means the plastic response of (SiC + TiC_x)_p/Fe composites obeyed the rule of mixture. The successful preparation of IMCs based on the hybrid reinforcement mechanism provides an idea for the optimization of IMCs. Full article

(This article belongs to the Special Issue Applications, Preparation and Characterization of Metal-Ceramic Nanocomposites)

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9 pages, 2897 KiB

Open AccessArticle

Transforming Pt-SnO₂ Nanoparticles into Pt-SnO₂ Composite Nanoceramics for Room-Temperature Hydrogen-Sensing Applications

by Ming Liu, Caochuang Wang, Pengcheng Li, Liang Cheng, Yongming Hu, Yao Xiong, Shishang Guo, Haoshuang Gu and Wanping Chen

Materials 2021, 14(9), 2123; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14092123 - 22 Apr 2021

Cited by 7 | Viewed by 1498

Abstract

Many low-dimensional nanostructured metal oxides (MOXs) with impressive room-temperature gas-sensing characteristics have been synthesized, yet transforming them into relatively robust bulk materials has been quite neglected. Pt-decorated SnO₂ nanoparticles with 0.25–2.5 wt% Pt were prepared, and highly attractive room-temperature hydrogen-sensing characteristics were observed for them all through pressing them into pellets. Some pressed pellets were further sintered over a wide temperature range of 600–1200 °C. Though the room-temperature hydrogen-sensing characteristics were greatly degraded in many samples after sintering, those samples with 0.25 wt% Pt and sintered at 800 °C exhibited impressive room-temperature hydrogen-sensing characteristics comparable to those of their counterparts of as-pressed pellets. The variation of room-temperature hydrogen-sensing characteristics among the samples was explained by the facts that the connectivity between SnO₂ grains increases with increasing sintering temperature, and Pt promotes oxidation of SnO₂ at high temperatures. These results clearly demonstrate that some low-dimensional MOX nanocrystals can be successfully transformed into bulk MOXs with improved robustness and comparable room-temperature gas-sensing characteristics. Full article

(This article belongs to the Special Issue Applications, Preparation and Characterization of Metal-Ceramic Nanocomposites)

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8 pages, 2006 KiB

Open AccessArticle

Focused Ion Beam Milling of Single-Crystal Sapphire with A-, C-, and M-Orientations

by Qiuling Wen, Xinyu Wei, Feng Jiang, Jing Lu and Xipeng Xu

Materials 2020, 13(12), 2871; https://0-doi-org.brum.beds.ac.uk/10.3390/ma13122871 - 26 Jun 2020

Cited by 18 | Viewed by 3709

Abstract

Sapphire substrates with different crystal orientations are widely used in optoelectronic applications. In this work, focused ion beam (FIB) milling of single-crystal sapphire with A-, C-, and M-orientations was performed. The material removal rate (MRR) and surface roughness (Sa) of sapphire with the three crystal orientations after FIB etching were derived. The experimental results show that: The MRR of A-plane sapphire is slightly higher than that of C-plane and M-plane sapphires; the Sa of A-plane sapphire after FIB treatment is the smallest among the three different crystal orientations. These results imply that A-plane sapphire allows easier material removal during FIB milling compared with C-plane and M-plane sapphires. Moreover, the surface quality of A-plane sapphire after FIB milling is better than that of C-plane and M-plane sapphires. The theoretical calculation results show that the removal energy of aluminum ions and oxygen ions per square nanometer on the outermost surface of A-plane sapphire is the smallest. This also implies that material is more easily removed from the surface of A-plane sapphire than the surface of C-plane and M-plane sapphires by FIB milling. In addition, it is also found that higher MRR leads to lower Sa and better surface quality of sapphire for FIB etching. Full article

(This article belongs to the Special Issue Applications, Preparation and Characterization of Metal-Ceramic Nanocomposites)

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Review

Jump to: Research

36 pages, 2745 KiB

Open AccessReview

Mechanical and Tribological Properties of Co-Electrodeposited Particulate-Reinforced Metal Matrix Composites: A Critical Review with Interfacial Aspects

by Piotr Jenczyk, Hubert Grzywacz, Michał Milczarek and Dariusz M. Jarząbek

Materials 2021, 14(12), 3181; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14123181 - 09 Jun 2021

Cited by 24 | Viewed by 3272

Abstract

Particulate-reinforced metal matrix composites (PRMMCs) with excellent tribo-mechanical properties are important engineering materials and have attracted constant scientific interest over the years. Among the various fabrication methods used, co-electrodeposition (CED) is valued due to its efficiency, accuracy, and affordability. However, the way this easy-to-perform process is carried out is inconsistent, with researchers using different methods for volume fraction measurement and tribo-mechanical testing, as well as failing to carry out proper interface characterization. The main contribution of this work lies in its determination of the gaps in the tribo-mechanical research of CED PRMMCs. For mechanical properties, hardness is described with respect to measurement methods, models, and experiments concerning CED PRMMCs. The tribology of such composites is described, taking into account the reinforcement volume fraction, size, and composite fabrication route (direct/pulsed current). Interfacial aspects are discussed using experimental direct strength measurements. Each part includes a critical overview, and future prospects are anticipated. This review paper provides an overview of the tribo-mechanical parameters of Ni-based co-electrodeposited particulate-reinforced metal matrix composite coatings with an interfacial viewpoint and a focus on hardness, wear, and friction behavior. Full article

(This article belongs to the Special Issue Applications, Preparation and Characterization of Metal-Ceramic Nanocomposites)

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