Advanced in Ceramic Matrix Composites

A special issue of Journal of Composites Science (ISSN 2504-477X). This special issue belongs to the section "Metal Composites".

Deadline for manuscript submissions: 15 November 2024 | Viewed by 3191

Special Issue Editor

The Spark Plasma Sintering Research Laboratory, Moscow State Technological University Stankin, Moscow, Russia
Interests: powders; powder technology; nanomaterials synthesis; materials processing; advanced materials; nanocomposites; ceramic materials; composite material; biomaterials; sintering; material characterization; microstructure; mechanical properties; material characteristics; materials testing; tribology; fatigue
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Ceramics have great potential in various fields due to their hardness, strength, heat and wear resistance, compatibility with the physiological environment, etc. However, one of the most important drawbacks of ceramic materials is their brittle nature characterized by low fracture toughness. The load applied to the brittle ceramic can result in the very fast catastrophic growth of micro-cracks, existing in virtually any material, and can consequently lead to the final unpredictable fracture. In order to avoid this, ceramic matrix composites have been developed. The individual properties of the constituent compositions are effectively utilized in composite design. The properties of composite materials depend on the composition of the components, the quantitative ratio and the bond strength between them. By combining the volumetric content of the components, it is possible, depending on the purpose, to obtain materials with the required values of strength, heat resistance, elastic modulus, etc. or to obtain composites with the necessary special properties, such as magnetic, electric, etc. This Special Issue provides an overview of the recent advances in ceramic matrix composites and what impact they have (or may have) on the development of various fields of high technology. Our goal is to give scientists the opportunity to publish experimental and theoretical results in the form of short communications, full papers, or reviews corresponding to this Special Issue.

The following topics may be covered, but are not limited to, the following:

  • Powder synthesis, ceramic composites processing and shaping;
  • Sintering: conventional, cold sintering, flash sintering, field-assisted sintering, pressure-assisted sintering;
  • Use of secondary phases or multiple phases to achieve outstanding properties;
  • Additive fabrication.

Dr. Anton Smirnov
Guest Editor

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. Journal of Composites Science 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 1800 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

  • ceramic matrix composites
  • structural design
  • processing methods
  • additive manufacturing
  • structural characterization
  • mechanical testing, tribological properties
  • thermal testing
  • corrosion and oxidation
  • modelling

Published Papers (3 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

13 pages, 3528 KiB  
Article
Experimental and Statistical Modeling for Effect of Nozzle Diameter, Filling Pattern, and Layer Height of FDM-Printed Ceramic–Polymer Green Body on Biaxial Flexural Strength of Sintered Alumina Ceramic
J. Compos. Sci. 2023, 7(9), 381; https://doi.org/10.3390/jcs7090381 - 12 Sep 2023
Cited by 1 | Viewed by 1087
Abstract
This paper deals with the application of statistical analysis in the study of the dependence of the flexural strength of sintered alumina (Al2O3) disks on the parameters (nozzle diameter of the printer print head, layer height, and filling pattern) [...] Read more.
This paper deals with the application of statistical analysis in the study of the dependence of the flexural strength of sintered alumina (Al2O3) disks on the parameters (nozzle diameter of the printer print head, layer height, and filling pattern) of the fused deposition method (FDM) printing of ceramic–polymer filament containing 60 vol.% alumina and 40 vol.% polylactide. By means of a correlation analysis applied to the results of flexural tests, a linear relationship was found between the thickness of the printed layer and the strength of the sintered specimens. A statistically significant linear relationship was found between the geometric parameters and the weight of both printed ceramic–polymer and sintered ceramic samples, as well as the diameter of the nozzle used in the printing of the workpiece. It was found that the highest strength is achieved with a layer thickness equal to 0.4 mm, and the smallest scatter of mass values and geometric dimensions of ceramic samples is achieved using a nozzle diameter of 0.6 mm. As a result of the conducted research, linear equations allowing the prediction of changes in the geometry and mass of samples after sintering, as well as the strength properties of sintered samples, taking into account the geometry and mass of FDMed samples, were obtained. Full article
(This article belongs to the Special Issue Advanced in Ceramic Matrix Composites)
Show Figures

Figure 1

11 pages, 7435 KiB  
Article
The Effect of Lithium Doping on the Dielectric Properties of Solid Solutions LixCa(1−x)Cu3Ti4O12 (x = 0.01–0.1)
J. Compos. Sci. 2023, 7(7), 282; https://doi.org/10.3390/jcs7070282 - 09 Jul 2023
Cited by 1 | Viewed by 877
Abstract
In this paper, LixCa(1−x)Cu3Ti4O12 (LCCTO) solid solutions were successfully synthesized. XRD diagrams showed that dopant acceptor Li+ cations, in a concentration range of x = 0.01–0.10, were successfully merged into CCTO structure. It [...] Read more.
In this paper, LixCa(1−x)Cu3Ti4O12 (LCCTO) solid solutions were successfully synthesized. XRD diagrams showed that dopant acceptor Li+ cations, in a concentration range of x = 0.01–0.10, were successfully merged into CCTO structure. It was found that doping with low concentrations of lithium (x < 0.05) inhibited grain growth during annealing; however, for x > 0.05, the grain growth process resumed. Permittivity and dielectric losses of obtained LCCTO ceramics were analyzed by the means of impedance spectroscopy in a frequency range from 10−1 to 106 Hz. It was revealed that acceptor doping with lithium at an appropriate concentration of x = 0.05 allowed to obtain ceramics with a permittivity level of ε′ = 3 × 104 and low dielectric losses tanδ < 0.1 at 1 kHz. Further addition of lithium in a concentration range of x = 0.075–0.10 led to a sharp decline in permittivity and an increase in dielectric losses. It was discovered that lithium addition to CCTO ceramics drastically decreased grain boundary resistivity from 115 MΩ·cm to 5–40 MΩ·cm at x = 0.01–0.10. Using Havriliak–Negami equation, the relaxation times for grain dipoles and grain boundary dipoles were found to be ranging from 0.8 × 10−6 to 1.7 × 10−6 s and from 0.4 × 10−4 to 7.1 × 10−4 s, respectively. The developed materials can be used in the manufacture of Multilayer Ceramic Capacitors (MLCC) as a dielectric. Full article
(This article belongs to the Special Issue Advanced in Ceramic Matrix Composites)
Show Figures

Figure 1

14 pages, 3198 KiB  
Article
Study of Radiation Damage Kinetics in Dispersed Nuclear Fuel on Zirconium Dioxide Doped with Cerium Dioxide
J. Compos. Sci. 2023, 7(7), 277; https://doi.org/10.3390/jcs7070277 - 05 Jul 2023
Cited by 1 | Viewed by 865
Abstract
One area that holds promise for nuclear energy advancement, which is the most attractive industry for eliminating the imbalance in the energy sector and reducing the world’s energy shortage for the long term, is the replacement of traditional uranium fuel with plutonium fuel. [...] Read more.
One area that holds promise for nuclear energy advancement, which is the most attractive industry for eliminating the imbalance in the energy sector and reducing the world’s energy shortage for the long term, is the replacement of traditional uranium fuel with plutonium fuel. The focus on this research area is due to the growing concern of the world community about the problem of handling spent nuclear fuel, including its further use or storage and disposal. The main aims of this paper are to study the resistance of composite ceramics based on zirconium and cerium dioxide to the hydrogenation processes and subsequent destructive embrittlement, and to identify patterns of growth stability attributable to the occurrence of interfacial boundaries and changes in the phase composition of ceramics. Studies have shown that the main effects of the structural distortion of the crystalline structure of ceramics are caused primarily by tensile deformation distortions, resulting in the accumulation of radiation-induced damage. The formation of Zr0.85Ce0.15O2 tetragonal phase of replacement in the structure of ceramics results in a more than two-fold reduction in the deformation distortion degree in cases of high-dose radiation with protons. The evaluation of the alteration in the strength properties of ceramics revealed that the variation in the phase composition due to polymorphic transformation of the monoclinic Zr0.98Ce0.02O2 → tetragonal Zr0.85Ce0.15O2 type results in the strengthening of the damaged layers and the improvement of the resistance to radiation-induced embrittlement and softening. Full article
(This article belongs to the Special Issue Advanced in Ceramic Matrix Composites)
Show Figures

Figure 1

Back to TopTop