In general, the strength of ceramic materials is influenced by the presence of flaws, originating during the material processing and representing fracture origins to be accordingly a reason of material fracture. In this book, fabrication processes of particle reinforced ceramic are introduced, which provide a useful set of variables for model experimental and theoretical studies. Toughening mechanisms of particle dispersion reinforced ceramic matrix composites are also discussed, and the practice of the composites containing the latest research results are introduced. In addition, the authors discuss the application of the contact and four-point bending tests on monolithic ceramic materials at room temperature to determine the strength of ceramic materials. Other chapters in this book examine fibre reinforced plastics, which are used world-wide in various applications. A novel nanofabrication strategy to develop high dielectric constant nanocomposite is also introduced, as well as a novel approach for systematic investigation of polymer nanocomposites.