Mechanical Behavior and Reliability of Engineering Ceramics

A special issue of Ceramics (ISSN 2571-6131).

Deadline for manuscript submissions: 31 October 2024 | Viewed by 1509

Special Issue Editor


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Guest Editor
Université Mohamed V de Rabat, EMI, Avenue Ibn Sina, Rabat B.P. 765, Morocco
Interests: ceramics; ceramic composites; mechanical characterization; thermomechanical behavior; microstructure-property relations

Special Issue Information

Dear Colleagues,

Important developments have been made in recent decades concerning engineering ceramics, including the emergence of new materials and the use of innovative processing methods, such as additive manufacturing or spark plasma sintering. Due to the brittleness of these materials, their mechanical properties and reliability are highly dependent on the nature of the pre-existing flaws and their stability. Their optimization relies on a complete understanding of the influence of the microstructure and the processing routes on their failure behavior.

This Special Issue aims to bring together papers that advance understanding in this field. We invite you to propose short communications, full papers, or reviews corresponding to this Special Issue, for which the following topics can be addressed:

Mechanical strength;
Fracture toughness;
Static and cyclic fatigue;
Mechanisms of failure;
Statistical analysis;
Advanced mechanical characterization methods;
Relationship between microstructure and mechanical properties;
Influence of processing routes.

Prof. Dr. Malika Saadaoui
Guest Editor

Manuscript Submission Information

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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. Ceramics is an international peer-reviewed open access quarterly 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 1600 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

  • mechanical properties
  • mechanical behavior
  • crack propagation
  • reliability
  • microstructure
  • processing method
  • characterization methods

Published Papers (1 paper)

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Research

13 pages, 5233 KiB  
Article
Effects of Composition Variations on Mechanochemically Synthesized Lithium Metazirconate-Based Ceramics and Their Resistance to External Influences
by Bauyrzhan K. Abyshev, Sholpan G. Giniyatova and Artem L. Kozlovskiy
Ceramics 2023, 6(4), 2394-2406; https://doi.org/10.3390/ceramics6040147 - 15 Dec 2023
Viewed by 1231
Abstract
The study examines the influence of variations in the compositions of components for the production of lithium-containing ceramics based on lithium metazirconate obtained by the method of mechanochemical grinding and subsequent thermal sintering. For component variation, two compositions were used, consisting of zirconium [...] Read more.
The study examines the influence of variations in the compositions of components for the production of lithium-containing ceramics based on lithium metazirconate obtained by the method of mechanochemical grinding and subsequent thermal sintering. For component variation, two compositions were used, consisting of zirconium dioxide (ZrO2) and two distinct types of lithium-containing materials: lithium perchlorate (LiClO4·3H2O) and lithium carbonate (Li2CO3). Adjusting the concentration of these components allowed for the production of two-phase ceramics with varying levels of impurity phases. Using X-ray phase analysis methods, it was determined that the use of LiClO4·3H2O results in the formation of a monoclinic phase, Li2ZrO3, with impurity inclusions in the orthorhombic phase, LiO2. On the other hand, when Li2CO3 is used, the resulting ceramics comprise a mixture of two phases, Li2ZrO3 and Li6Zr2O7. During the studies, it was established that the formation of impurity inclusions in the composition of ceramics leads to an increase in the stability of strength properties with varying mechanical test conditions, as well as stabilization of thermophysical parameters and a decrease in thermal expansion during long-term high-temperature tests. It has been established that in the case of two-phase ceramics Li2ZrO3/Li6Zr2O7 in which the dominance of the Li6Zr2O7 phase is observed during high-temperature mechanical tests, a more pronounced decrease in resistance to cracking is observed, due to thermal expansion of the crystal lattice. Full article
(This article belongs to the Special Issue Mechanical Behavior and Reliability of Engineering Ceramics)
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