Key Engineering Materials
Understanding the manner in which damage evolves in engineering materials, systems or structures is currently the focus of extensive research. The object of the present book is to report recent advances in the areas of damage detection, assessment and quantification.
The application of ceramic materials is currently expanding into a wide range of areas, e.g. gas turbine assembly, engine components, electronic devices, bio-materials etc. But because ceramics pose problems with respect to their brittleness and low reliability, due to their intrinsic nature and/or processing defects, research related to the deformation and fracture of ceramics is still a subject of high priority.
High performance materials are needed in many thermomechanical applications, such as advanced jet engines or gas turbines, thermal protection of space planes, thermal engineering and nuclear fusion. Ceramic-matrix composites, reinforced with long fibers, are expected to be the most promising candidates for such applications. However, several key problems will have to be solved in the near future. These problems include, above all, the development of a superior thermomechanical performance and oxidation resistance for ceramic fibers and composites, highly efficient protection against corrosion, better fiber/matrix interface design and performance, and cost effective processing.
A total of 147 peer-reviewed papers were presented during EnCera' 98. The topics covered included: "Modeling of Microstructural Evolution", "Novel Processing", "Advanced Oxide Ceramics", "Advanced Non-oxide Ceramics", "Particulate, Platelet and Whisker Reinforced Composites", "Nanostructured Ceramics and Nanocomposites", "Synergy Ceramics", "Fracture, Deformation and Mechanical Reliability", "Advanced Refractories", and "Joining, FGM and Applications" .
Ceramics have long been recognized as one of the key materials for the 21st century because of their various unique properties which cannot be duplicated by any other existing material.
Electroceramics have long furthered the development of electronics, and underpin modern-day high-technology. The development of electroceramics in Japan has been especially marked: many new electroceramics such as ferrites, varistors and sensors, as well as superior manufacturing technologies have been the result.
This process-oriented book focuses on the basic principles of composite fabrication. Upon studying these processes, one is immediately struck by the diversity of ideas and techniques. In some cases, these have been borrowed from other technologies and were designed for use with quite different materials. In other cases some very clever new means have been developed which take account of the characteristics of metals and ceramics and the higher temperatures which are typically involved in their processing.
Sol-gel technology is an important route for the fabrication of inorganic and inorganic-organic composite materials. As is typical of chemical synthesis routes, a wide range of parameters can be used to tailor the product.