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New Advances in SiC-Based Composite Materials

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

Deadline for manuscript submissions: closed (10 June 2023) | Viewed by 2703

Special Issue Editors


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Guest Editor
Instituto Universitario de Materiales de Alicante (IUMA), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
Interests: composite materials; bioinspired materials; carbon materials; Si-based ceramics; light alloys; materials chemistry
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Guest Editor
Materials Engineering Department, Purdue University, West Lafayette, IN 47907, USA
Interests: advanced ceramics; hierarchical porous ceramics; ceramic/metal composites; lightweight ceramic composites

Special Issue Information

Dear Colleagues,

Silicon-based ceramics are well known, at both academic and industrial research levels, for their outstanding room temperature and high-temperature properties, such as their elevated strength, hardness, stiffness, corrosion and oxidation resistance. A new drive for these materials has emerged in recent years because of their incorporation in turbine engines for airplanes. The need for complex geometries that can be incorporated into such engines makes manufacturing techniques, such as reactive infiltration, topics of high-interest. Furthermore, Si-based ceramics, in particular silicon carbide (SiC), have been considered a leading candidate for use in certain parts of future fusion reactors. However, there are still technical and scientific difficulties that require further research and development, such as the inherent lack of toughness of these ceramics. Beyond its unique properties, SiC has been used to synthesize the most pristine graphene sheets through the sublimation of Si atoms from its surface. This kind of composite material represents one of the most promising candidates for next generation electronics.

The aim of this Issue is to collect research from various points of view, ranging from basic science, such as the study of the interaction between molten metals and SiC by both reactive and non-reactive wetting techniques, to the most applied aspects, such as the manufacture of prototypes or property measurements, with a particular focus on SiC development.

Prof. Dr. Javier Narciso
Dr. Mario R. Caccia
Guest Editors

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Keywords

  • SiC
  • SiC composites
  • wettability
  • infiltration
  • reactive infiltration

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Published Papers (2 papers)

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Research

12 pages, 2497 KiB  
Article
Manufacture of SiC: Effect of Carbon Precursor
by Enrique V. Ramos-Fernández and Javier Narciso
Materials 2023, 16(5), 2034; https://doi.org/10.3390/ma16052034 - 1 Mar 2023
Cited by 3 | Viewed by 2096
Abstract
SiC is one of the most important ceramics at present due to its excellent properties and wide range of applications. The industrial production method, known as the Acheson method, has not changed in 125 years. Because the synthesis method in the laboratory is [...] Read more.
SiC is one of the most important ceramics at present due to its excellent properties and wide range of applications. The industrial production method, known as the Acheson method, has not changed in 125 years. Because the synthesis method in the laboratory is completely different, laboratory optimisation may not be extrapolated to the industrial level. In the present study, the results at the industrial level and at the laboratory level of the synthesis of SiC are compared. These results show that it is necessary to make a more detailed analysis of the coke than the traditional one; therefore, the Optical Texture Index (OTI) should be included, as well as the analysis of the metals that form the ashes. It has been found that the main influencing factors are OTI and the presence of Fe and Ni in the ashes. It has been determined that the higher the OTI, as well as the Fe and Ni content, the better the results obtained. Therefore, the use of regular coke is recommended in the industrial synthesis of SiC. Full article
(This article belongs to the Special Issue New Advances in SiC-Based Composite Materials)
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11 pages, 2656 KiB  
Article
Angle-Dependent Raman Scattering Studies on Anisotropic Properties of Crystalline Hexagonal 4H-SiC
by Zhe Chuan Feng, Dishu Zhao, Lingyu Wan, Weijie Lu, Jeffrey Yiin, Benjamin Klein and Ian T. Ferguson
Materials 2022, 15(24), 8751; https://doi.org/10.3390/ma15248751 - 8 Dec 2022
Cited by 5 | Viewed by 1867
Abstract
Raman scattering spectroscopy (RSS) has the merits of non-destructiveness, fast analysis, and identification of SiC polytype materials. By way of angle-dependent Raman scattering (ADRS), the isotropic characteristics are confirmed for c-face 4H-SiC, while the anisotropic properties of a-face 4H-SiC are revealed and studied [...] Read more.
Raman scattering spectroscopy (RSS) has the merits of non-destructiveness, fast analysis, and identification of SiC polytype materials. By way of angle-dependent Raman scattering (ADRS), the isotropic characteristics are confirmed for c-face 4H-SiC, while the anisotropic properties of a-face 4H-SiC are revealed and studied in detail via combined experiments and theoretical calculation. The variation functional relationship of the angle between the incident laser polarization direction and the parallel (perpendicular) polarization direction was well established. The selection rules of wurtzite 4H-SiC are deduced, and the intensity variations of the A1, E2, and E1 Raman phonon modes dependent on the incident angle are calculated, and well-matched with experimental data. Raman tensor elements of various modes are determined. Full article
(This article belongs to the Special Issue New Advances in SiC-Based Composite Materials)
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