| abstract |
The present invention provides a method for producing a silicon-SiC composite powder, wherein a gas stream I containing SiH 4 , Si 2 H 6 and / or Si 3 H 8 and at least one hydrocarbon selected from ethylene and / or acetylene and hydrogen The coaxial gas stream II is fed to a hot wall reactor, where the gas stream II forms a jacketed flow related to the gas stream I, and at least the gas stream I reacts at a temperature of 900 ° C to 1100 ° C and is subsequently in the hot wall reactor At the outlet, the reaction mixture is cooled or left to cool and the powdered reaction product is separated from the gaseous material. |