Developments in Microwave Processing of Materials

The principles of microwave heating are discussed with reference to dielectric properties and heating phenomena. Microwave processing has been emerging as a novel sintering method for many traditional ceramics, advanced ceramics and ceramic composites as well as polymer and polymer composites. Most recent potential applications involve steel making, used tires recycling and alternative sources for energy recovery (oil shale and capped oil wells). Many specialty ceramics, composites and metal powders have been successfully processed in microwave with improved properties. The aim of this paper is to provide an introduction to microwave heating, its mechanism and to illustrate its application in the field of synthesis.