CORROSION-RESISTANT CERAMIC MEMBER

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PROBLEM TO BE SOLVED : To provide a corrosion-resistant ceramic member which is not broken even in combustion gas such as the combustion gas from a gas turbine, which contains a large amount of steam, the temperature of which is high and which flows at high speed, and which has high strength and high corrosion resistance. SOLUTION : The corrosion-resistant ceramic member at least contains a rare earth element (RE), silicon (Si) and oxygen (O) and is characterized in that a nonoxide particle is dispersed in a ceramic matrix based on the phase of a crystal shown by RE2Si2O7 and/or the phase of a crystal shown by RE2SiO5. It is preferable that the nonoxide particle is dispersed mainly in a particle in the ceramic matrix. The nonoxide particle in the ceramic matrix is preferably at least one crystalline particle selected from silicon nitride, silicon carbide, titanium carbide, titanium nitride, tungsten carbide, tungsten silicide, molybdenum carbide and molybdenum silicide. COPYRIGHT : (C)2008, JPO&INPIT