Special Issue "Microstructural Design and Processing Control of Advanced Ceramics"
Deadline for manuscript submissions: closed (10 April 2022) | Viewed by 16507
A printed edition of this Special Issue is available here.
Interests: very high cycle fatigue (VHCF) & fracture; mechanics of advanced materials and structures
Advanced ceramics are referred to in various parts of the world as technical ceramics, high-tech ceramics, and high-performance ceramics. They represent an important technology which has considerable impact for a large variety of industries, branches, and markets. It is considered an enabling technology which has the potential to deliver high-value contributions for solving the challenges of our future. From a general point of view, the advanced ceramics sector comprises the following categories:
- Functional ceramics: Electrical and magnetic ceramics (i.e., dielectrics, piezoelectrics, ferromagnetics), ionic conductors, and superconductive ceramics;
- Structural ceramics: Monoliths and composites, e.g., oxides, nitrides, carbides, borides, and composite materials based on these materials;
- Bioceramics, e.g., hydroxyapatite and alumina;
- Ceramic coatings: Oxides, nitrides, carbides, borides, cermets, and diamond-like coatings, deposited by technologies such as spraying, vapor deposition, and sol–gel coating;
- Special glasses: processed flat glass, fire-resistant glazing, and glasses for optoelectronics.
First, advanced ceramics tend to lack a glassy component, i.e., they are “basically crystalline”. Second, microstructures are usually highly engineered, meaning that grain sizes, grain shapes, porosity, and phase distributions (for instance, the arrangements of second phases such as whiskers and fibers) can be carefully planned and controlled. Such planning and control require “detailed regulation” of composition and processing. Finally, such advanced ceramics with both well-designed microstructures tend to exhibit unique or superior functional attributes that can be “precisely specified” by careful processing and quality control. Examples include unique electrical properties such as superconductivity or superior mechanical properties, such as enhanced toughness or high-temperature strength.
Because of the attention to microstructural design and processing control, advanced ceramics are often high value-added products. Developments in advanced ceramic processing continue at a rapid pace, constituting what can be considered a revolution in the kind of materials and properties obtained.
Prof. Dr. Qingyuan Wang
Dr. Yu Chen
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- advanced ceramics
- chemical composition
- microstructural design
- processing control