Keramikmatrixverbundwerkstoff und Verfahren zu dessen Herstellung

NOVELTY - A ceramic matrix composite material comprises a silicon nitride or sialon matrix which contains a finely dispersed ternary Me-Si-N or binary Me-N compound filler. DETAILED DESCRIPTION - The ceramic matrix composite material comprises a Si3N4 or Si6-zAlzOzN8-z (z is less than or equal to 3) matrix containing a finely dispersed ternary Me-Si-N or binary Me-N compound filler. An INDEPENDENT CLAIM is also included for the production of the above composite material from a powder mixture by pressing and reaction sintering under nitrogen. Preferred Features: The metal constituent of the filler compound is selected from subgroup IV to VI elements, especially zirconium and/or titanium. USE - Especially for high temperature ceramic and metallurgical applications under complex corrosion and wear conditions. ADVANTAGE - The composite material has high resistance to corrosion e.g. by metal and/or silicate melts, has high strength and density, and exhibits low shrinkage and internal stress level and exhibits low wetting by iron melts.