CERAMIC BODY COATED WITH DIAMOND LAYER AND METHOD FOR PREPARING SAME

摘要

PURPOSE: A ceramic body coated with a diamond film and a manufacturing method thereof are provided to maintain the excellent property of the ceramic body while changing only the surface of the ceramic body. CONSTITUTION: A manufacturing method of a ceramic body coated with a diamond film comprises the following steps: forming a surface layer including a reaction residue by occurring a chemical reaction on the surface of the ceramic body; forming the surface layer with an uneven embossment form by removing the reaction residue from the surface layer; and vaporizing the diamond film on the surface layer. The average illuminance of the surface layer is less than 50 micrometers. The ceramic body includes SiC or Si_3N_4.