| abstract |
(57) [Abstract] [Purpose] A coating composition which is excellent in heat resistance, abrasion resistance, and corrosion resistance at low temperature (150 to 350 ° C) baking or without baking, and gives a dense coating film without cracks, To provide the construction method. An alcohol-added polysilazane having an alcohol / polysilazane atomic ratio of 0.001 to 2 and a number average molecular weight of about 100 to 500,000 obtained by heating a polysilazane having a number average molecular weight of 100 to 50,000 with an alcohol. A coating composition containing: When this composition is applied to a substrate and then fired at 50 ° C. or higher, or kept at less than 50 ° C., Si—N—O or Si—N—O—C ceramics having excellent heat resistance, wear resistance, and corrosion resistance. A film is obtained. |