Chemical vapor composites (CVC)

Abstract
The Chemical Vapor Composite, CVC®, process fabricates composite material by simply mixing particles (powders and or fibers) with CVD reactants which are transported and co-depositedo n a hot substrate. A key feature of the CVC process is the control provided by varing the density, geometry (aspect ratio) and composition of the entrained particles in the matrix material, during deposition. The process can fabricate composite components to net shape (± 0.013 mm) on a machined substrate in a single step. The microstructure of the deposit is described and several examples of different types of particles in the matrix are illustrated. Mechanical properties of SiC composite material fabricated with SiC powder and fiber will be presented. Several examples of low cost ceramic composite products will be shown.