Fibrous ceramic monoliths made from multi-phase ceramic filaments
AssigneeUchicago Argonne, LLC
InventorsKenneth C. Goretta, Dileep Singh, Bryant J. Polzin, Terry Cruse, John J. Picciolo
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Abstract
A method for producing composite ceramic material is provided wherein a core ceramic structure is produced and simultaneously enveloped with a sleeve of similar material.
Claims11
A monolith having an inner region and a peripheral region and comprising a plurality of multi-phase filaments, the filaments each having a cell phase and a boundary phase, whereby said boundary phase is concentrically arranged about the cell phase and coaxial to the cell phase, whereby the peripheral region of the monolith comprises a set of filaments wherein a majority of the peripheral region filaments consist of a 80/20 cell/boundary phase volume percent and the inner region of the same monolith comprises a set of filaments wherein a majority of the inner region filaments consist of ≦75 volume percent cell phase and ≧25 volume percent boundary phase.
A monolith having an inner region and a peripheral region consisting of a plurality of multi-phase filaments, the filaments each having a cell phase and a boundary phase, whereby the filaments residing in the peripheral region of the monolith consist of a 80/20 cell/boundary phase volume percent and the filaments residing in the inner region of the same monolith consist of ≦75 volume percent cell phase and ≧25 volume percent boundary phase.
Dependencies are inferred from the claim text.