Ceramics: Processes, Microstructures, and Properties
A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Polycrystalline Ceramics".
Deadline for manuscript submissions: 1 June 2024 | Viewed by 4536
Special Issue Editors
Interests: 3D/4D additive–subtractive manufacturing; shape memory ceramics; intelligent manufacturing equipment
Interests: ceramics; additive manufacturing; 3D printing; application
Special Issues, Collections and Topics in MDPI journals
Interests: structural ceramics; ceramic matrix composites
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Relative to polymers and metals, the processing of ceramics is challenging due to their extremely high melting points. The development of polymer-derived ceramics, prepared through the thermolysis of polymeric ceramic precursors, offers potential for manufacturing ceramics with tuneable microstructures and properties. Additive manufacturing (AM), also known as three-dimensional printing, has boomed over the last 30-40 years. AM is a material-oriented manufacturing technology, and printing resolution versus printing scalability/speed trade-off exists among various types of ceramic materials. The AM of ceramic structures is typically achieved with powder/slurry-based ceramic printing feedstocks, coating-film-based ceramic printing feedstocks, and polymeric precursor-based ceramic printing feedstocks. The rapid development of AM and other ceramic processing technologies is expected to broaden the applications of ceramic materials in aerospace, biomedical, electronics, and art fields. This Special Issue is mainly focused on the ceramic processes and microstructure of ceramics, including (but not limited to) the additive manufacturing of ceramics, ceramic matrix composites, polymer-derived ceramics, the microstructure of ceramics, materials characterization, thermal/environment barrier coatings, and bio-ceramics.
Dr. Guo Liu
Dr. Jiamin Wu
Dr. Rujie He
Guest Editors
Manuscript Submission Information
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Keywords
- additive manufacturing of ceramics
- ceramic matrix composites
- polymer-derived ceramics
- microstructure of ceramics
- materials characterization
- thermal/environment barrier coatings
- bio-ceramics
Planned Papers
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
The sintering mechanism of Si3N4 ceramics with SmF3 as sintering additives using gas pressure sintering
Shengwu Huang, Yanhui Li, Xingchen Yan
Abstract: Silicon nitride (Si3N4) ceramics are widely used in electronic devices due to their outstanding mechanical properties and high thermal conductivity. The thermal conductivity of Si3N4 ceramics is mainly affected by the density and microstructure, as porosity, grain size, grain orientation, grain boundary phase, and lattice oxygen. In this paper, the results revealed that the inclusion of an appropriate amount of SmF3 can effectively enhance the densification process and purity oxygen in Si3N4 grain boundary through the reaction between SmF3 and SiO2 on the surface of Si3N4 particles.