| 摘要 |
PURPOSE:To obtain easily a powdery silicon carbide of high purity, hydrolyzing a disilane compound expressed by a specific general formula in the presence of carbon powder, and reducing the hydrolysis product at a given temperature in a monoxidizing atmosphere. CONSTITUTION:A disilane compound expressed by the formula (R is H or the same or different monofunctional hydrocarbon group; X is halogen atom; n is an integer 1-5) is hydrolyzed in the presence of carbon powder to give a fine powdery silica obtained by hydrolysis of the disilane compound as a mixture thereof with the carbon powder. The resultant mixture is then reduced at 1,600- 2,100 deg.C in a monoixidizing atmosphere to give easily powdery silicon arbide. The above-mentioned disilane compound as a starting material can be easily purified highly by distillation, etc. at a low cost, and the aimed silicon carbide can be obtained economically in high purity.
|
