초록 ▼

The present invention is to provide a production method of silicon carbide particles of high quality without generating a sulfur compound in the carbonizing and baking processes. More concretely, a production method of silicon carbide particles comprising a step of mixing at least one kind of a sili

The present invention is to provide a production method of silicon carbide particles of high quality without generating a sulfur compound in the carbonizing and baking processes. More concretely, a production method of silicon carbide particles comprising a step of mixing at least one kind of a silicon compound, which is liquid at ordinary temperatures, an organic compound having a functional group, which generates carbon by heating and is liquid at ordinary temperatures, and a polymerization or crosslinking catalyst, which can homogeneously dissolve with the organic compound to obtain a mixture, a step of homogeneously solidifying the mixture to obtain solid matter, and a step of heating and baking the solid matter in a non-oxidizing atmosphere, wherein the catalyst is a compound consisting of carbon atoms, hydrogen atoms and oxygen atoms, and has a carboxyl group.

대표청구항 ▼

[ What is claimed is that:] [1.]1. A production method of silicon carbide particles comprising:a step of mixing at least one silicon compound selected from the group consisting of a silica sol, alkoxysilanes and polymers of alkoxysilanes, and which is liquid at room temperature, with an organic comp

[ What is claimed is that:] [1.]1. A production method of silicon carbide particles comprising:a step of mixing at least one silicon compound selected from the group consisting of a silica sol, alkoxysilanes and polymers of alkoxysilanes, and which is liquid at room temperature, with an organic compound capable of polymerization or crosslinking having a functional group which generates carbon by heating and is liquid at room temperature and is different from the at least one silicon compound, and with a polymerization or crosslinking catalyst that is different from the at least one silicon compound and different from the organic compound and has a hydrophobic portion that has affinity with the silicon compound and a hydrophilic portion that has affinity with the organic compound which homogeneously dissolves with the organic compound and the at least one silicon compound to obtain a mixture;a step of homogeneously solidifying the mixture to obtain a solid matter; anda step of heating and baking the solid matter at a temperature of 1600.degree. C. to 1900.degree. C. in a non-oxidizing atmosphere,wherein the catalyst is at least one selected from the group consisting of maleic acid, maleic anhydride, acrylic acid and itaconic acid.