Metallic Coatings: Al-Zn Alloys

Steel sheet has one major drawback, it is attacked by moisture at low temperatures and oxygen at high temperatures. Fortunately, coatings can provide protection to steel sheet from corrosion. Aluminum and aluminum zinc coatings can be applied by different methods. These are chemical vapor deposition coating (CVD), slurry coating, vacuum coating, spray coating, cladding, electroplating, electrophoresis, diffusion coatings, cementation, calorizing and hot dipping. This paper aims at providing a survey of these processes.

Novel Energetic Composite Materials

A screening of novel energetic materials is presented. These materials are selected according to their energy content and heat release during ignition. These material mixtures will be fabricated into composites that can also perform structural functions. A composite fabrication route is developed using fluidized bed chemical vapor deposition; coating a metallic layer onto the particles as a method to control mechanical properties and reaction kinetics. These reactive metal matrix composites can be developed to offer optimum performance with specific strength, modulus and energetic capabilities.