초록 ▼

A ceramic composition produced by the consolidation of a blend of starting components. The composition comprises a matrix with one or more of the carbides, nitrides and carbonitrides of hafnium, molybdenum, zirconium, tantalum, niobium, vanadium and tungsten, titanium nitride, and titanium carbonitr

A ceramic composition produced by the consolidation of a blend of starting components. The composition comprises a matrix with one or more of the carbides, nitrides and carbonitrides of hafnium, molybdenum, zirconium, tantalum, niobium, vanadium and tungsten, titanium nitride, and titanium carbonitride in an amount that is greater than 50 volume percent of the matrix. The matrix comprises between 60 and 99.8 volume percent of the composition. Ceramic whiskers are uniformly dispersed throughout the matrix wherein the ceramic whiskers comprises between 0.2 and 40 volume percent of the composition.

대표청구항 ▼

[What is claimed is:] [1.]a matrix comprising one or more of the carbides, nitrides and carbonitrides of hafnium, molybdenum, tungsten, zirconium, tantalum, niobium, vanadium, titanium, and solid solutions thereof in an amount that is greater than 50 volume percent of the matrix, the matrix further

[What is claimed is:] [1.]a matrix comprising one or more of the carbides, nitrides and carbonitrides of hafnium, molybdenum, tungsten, zirconium, tantalum, niobium, vanadium, titanium, and solid solutions thereof in an amount that is greater than 50 volume percent of the matrix, the matrix further includes sintering aid residue present from the use of one or more sintering aids as a starting component in an amount less than 0.5 weight percent of the starting components wherein the sintering aid comprises one or more of yttria, magnesia and zirconia, the matrix comprising between 60 and 99.8 volume percent of the composition; andceramic whiskers uniformly dispersed throughout the matrix, the ceramic whiskers comprising between 0.2 and 40 volume percent of the composition.