ABSTRACT
This chapter introduces the wide range of modern ceramic applications and the key characteristics that the ceramics must have to satisfy the application requirements. Although internal combustion engines are constructed mostly of metals, there are some ceramic components and there are benefits that could be achieved with broader use of ceramics. The most obvious use is the spark plug insulator. The ceramic must perform several engineering functions simultaneously. Ceramics have been the materials of choice for high-temperature applications. Many industrial processes involve high temperature and thus require materials that are stable under the temperature and chemical environment of the specific application. While many applications of ceramics are based upon temperature resistance, many others are based upon resistance to wear and chemical corrosion. Examples include seals, valves, pump parts, bearings, thread guides, papermaking equipment, and a variety of liners in equipment exposed to harsh chemical or erosive environments.
