Patent ID: 8158204
Filing Date: 2012-04-17
Classification: C23C,Y10S

Abstract:
1. A method of producing a thin and poorly soluble coating layer on a substrate, the method comprising: I. applying at least one precursor to a surface of the substrate so as to form a precursor layer thereon, II. drying the precursor layer by at least one of a stream of inert gas and evaporation, III. gassing the precursor layer with a moist reactant gas so as to convert the precursor layer into an intermediate layer including at least one of a hydroxide layer and a complex layer, the moist reactant gas being formed by bubbling nitrogen through a solution of aqueous ammonia, and IV. thermally treating the intermediate layer so as to produce the coating layer on the substrate, the coating layer being at least one of ceiamic and oxidic, and, wherein steps I-IV are repeated until the coating layer is of a desired thickness.