Audi Ag

Matthieu Schwartz

Andreas Kienzle

Johann Daimer

Jens Rosenlöcher

Rudi Beck

Otto Mederle

Rudi Back

Otto Mederie

A method for treating workpieces that consist of porous carbon material with liquid silicon with the formation of silicon carbide, comprising the steps: Preheating porous carbon workpieces under inert gas to the selected operating temperature T, feeding liquid silicon to the porous carbon workpieces at an operating pressure pand an operating temperature T, and impregnating the porous carbon workpieces with liquid silicon, reaction of the liquid silicon in the workpiece at a temperature Twith the formation of silicon carbide that consists of carbon and silicon, gassing the workpiece with inert gas and cooling from the operating temperature Tto the conditioning temperature T, cooling the workpieces to room temperature, the temperature Tbeing greater than or equal to the temperature T, and the workpiece in step d of the method no longer being in contact with liquid silicon outside of the workpiece.

Method for siliconizing carbon-containing materials

A method for treating workpieces that consist of porous carbon material with liquid silicon with the formation of silicon carbide, comprising the steps: Preheating porous carbon workpieces under inert gas to the selected operating temperature T1, feeding liquid silicon to the porous carbon workpieces at an operating pressure p2 and an operating temperature T2, and impregnating the porous carbon workpieces with liquid silicon, reaction of the liquid silicon in the workpiece at a temperature T3 with the formation of silicon carbide that consists of carbon and silicon, gassing the workpiece with inert gas and cooling from the operating temperature T3 to the conditioning temperature T, cooling the workpieces to room temperature, the temperature T3 being greater than or equal to the temperature T2, and the workpiece in step d of the method no longer being in contact with liquid silicon outside of the workpiece.

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Augsburg, Germany

Matthieu Schwartz