This volume is an attempt to summarize the knowledge obtained during the 1990s in the modelling of the main powder metallurgy (P/M) operations. In addition to extensive reviews of achieved results to-date, new ideas in P/M modelling are presented and discussed. The book also contains examples of successful modelling applications in industrial problems. Discussions on some advanced powder processing technologies are also included. This volume provides a concise review of the state-of-the-art in computer modelling of P/M operation. It should be interesting for students and professors as an introduction to the mechanical behaviour of powders and porous materials under loading at various temperatures. Mechanical and materials engineers should find information on the practical application of P/M modelling as well as information about interesting developments in the powder technologies: fast field activated sintering, self-propagating high-temperature synthesis, HIP technology for production of large discs for high-performance gas-turbine engines and processing of functionally graded materials.