Method for producing a sized coated ceramic fiber and coated fiber

A method of producing a sized ceramic fiber, wherein the method comprises the steps of:

• 1) applying to a ceramic fiber selected from silicon carbide fibers, silicon oxycarbide fibers, silicon oxynitride fibers, silicon carbide fibers containing titanium, silicon oxycarbonitride fibers, and silicon nitride fibers;
• a non-aqueous sizing composition consisting essentially of
• (a) 1 to 98% by weight of a sizing compound selected from the group consisting of multifunctional acrylate monomers, multifunctional methacrylate monomers and multifunctional acrylate polymers;
• (b) 1 to 20% by weight of a curing agent selected from the group consisting of ultra-violet photoinitiators and free-radical initiators;
• and
• (c) 1 to 98% by weight of a dry solvent;
• and
• 2) curing the sizing compound to form a sized ceramic fiber.