Abstract: An adhesion promoter composition is including one or more reactive silanes, one or more swelling agents, and one or more organic solvents, where the one or more reactive silanes forms a complex with the one or more swelling agents is disclosed. The one or more reactive silanes may include an amine functional group, an epoxy functional group, a mercapto functional group, an isocyanate functional group, or a combination thereof. The one or more swelling agents is selected from a group which may include phenol or naphthol derivatives. A composite part including the adhesion promoter composition and a method for applying the adhesion promoter composition is also disclosed.

Abstract: An adhesion promoter composition is including one or more reactive silanes, one or more swelling agents, and one or more organic solvents, where the one or more reactive silanes forms a complex with the one or more swelling agents is disclosed. The one or more reactive silanes may include an amine functional group, an epoxy functional group, a mercapto functional group, an isocyanate functional group, or a combination thereof. The one or more swelling agents is selected from a group which may include phenol or naphthol derivatives. A composite part including the adhesion promoter composition and a method for applying the adhesion promoter composition is also disclosed.

Abstract: A process for the production of dense polycrystalline silicon carbide shaped articles, includes the steps: (a) heating a powder compact containing silicon carbide and alumina or a precursor thereof together with a secondary sintering assist, to an intermediate temperature for an extended dwell, and then (b) heating the product of step (a) to a higher temperature for sufficient time to produce a dense polycrystalline silicon carbide product. The secondary sintering assist includes one or more rare earths or their precursors, for example scandia, yttria or dysprosia.