초록 ▼

An oxide ceramic composite suitable for fabricating components of combustion turbines and similar high temperature environments. The composite is fabricated by dispersing metal particles in a fiber preform and infiltrating the fiber preform with sol-gel matrix precursor material. Alternatively, the

An oxide ceramic composite suitable for fabricating components of combustion turbines and similar high temperature environments. The composite is fabricated by dispersing metal particles in a fiber preform and infiltrating the fiber preform with sol-gel matrix precursor material. Alternatively, the metal particles are mixed into the sol-gel matrix precursor material and the preform is infiltrated with the mixture. Later in the fabrication process, the metal particles oxidize and become oxidized metal when the sol-gel matrix precursor material is sintered. The oxidized metal has more volume and mass than the metal particles. As a result, the oxidized metal contributes to increasing the density of the composite so that it is suitable for use in combustion turbines and similar high temperature environments.

대표청구항 ▼

[ What is claimed is:] [1.] A method of fabricating an oxide ceramic composite comprising the steps of:providing a fiber preform defining a volume;dispersing metal particles throughout at least a portion of the volume;infiltrating at least a portion of the volume with a sol-gel matrix precursor mate

[ What is claimed is:] [1.] A method of fabricating an oxide ceramic composite comprising the steps of:providing a fiber preform defining a volume;dispersing metal particles throughout at least a portion of the volume;infiltrating at least a portion of the volume with a sol-gel matrix precursor material to fabricate an infiltrated preform;sintering the infiltrated preform; andoxidizing at least a portion of the dispersed metal particles.