REINFORCED COMPOSITE FIBER CERAMICS AND INFILTRATED OF CASTED METAL AND PROCEDURE FOR THE MANUFACTURE OF THE SAME.

摘要

The invention relates to composite ceramics reinforced with fibers infiltrated with molten metal and comprising high temperature resistant fibers, in particular based on Si / C / B / N, which are attached to a matrix based on Si, by reaction. The invention also relates to a method of manufacturing said ceramics. The silicon used for the infiltration contains additions of iron, chromium, titanium, molybdenum, nickel or aluminum, preferably the ground silicon contains approximately 5 to 50% by weight of iron and approximately 1 to 10% by weight of chromium. The manufacturing process is simpler than conventional ground silicon processes and confers improved properties to composite ceramics.