Plasma-assisted process of ceramization of polymer precursor on surface, surface comprising ceramic polymer

A ceramization process of a polymer precursor suspension containing at least one polymer precursor and at least one active filler or a mixture of the at least one active filler with at least one inert filler on at least one component surface, wherein the at least one inert filler is an agent added to stabilize distribution of the at least one active filler in the suspension, reducing sedimentation effects during the process, the process comprising the steps of:

• (a) preparation of the suspension comprising:
• said at least one polymer precursor;
• the at least one active filler;
• at least one solvent;
• and
• at least one dispersant;
• (b) application of said suspension on the at least one component surface, forming at least one suspension coated component surface;
• and
• (c) plasma-assisted pyrolysis heat treatment of the at least one suspension coated component surface in a medium that contains at least one reactive species from dissociation of molecules of at least one molecular species selected from the group consisting of hydrogen, nitrogen, hydrocarbons or combinations thereof, wherein the plasma-assisted pyrolysis heat treatment is DC plasma-assisted pyrolysis, and wherein the plasma-assisted pyrolysis heat treatment is performed at a pressure of about 1.33×101 Pascal (0.1 Torr) to 1.33×104 Pascal (100 Torr) and is carried out for 30 minutes to 300 minutes at a temperature of 800 to 1200° C.;
• and
• with the heat treatment by DC plasma-assisted pyrolysis, obtaining, from the at least one suspension coated component surface, a polymer derived crystalline ceramic from the at least one polymer precursor, wherein the polymer derived crystalline ceramic comprises a phase formed by reaction of the at least one active filler with the at least one reactive species.