METHOD OF FABRICATING A CERAMIC ARTICLE

摘要

A method of fabricating a ceramic article includes serially depositing first, second and third different materials within a porous structure using, respectively, first, second and third different processing techniques, to form a ceramic-containing article. The first, second and third materials differ by at least one of composition and microstructure. The first, second and third different processing techniques differ by at least one of modes of delivery of precursor materials into the porous structure and formation mechanisms of the first, second and third different materials from the precursor materials. The deposition of the first material is controlled such that there are first residual voids in the porous structure in which the second material is deposited. The deposition of a second material is controlled such that there are second residual voids in the porous structure in which the third material is deposited.

主权项

1. A method of fabricating a ceramic article, the method comprising:
serially depositing first, second and third different materials within a porous structure using, respectively, first, second and third different processing techniques, to form a ceramic-containing article, the first, second and third different materials differing by at least one of:
composition andmicrostructure, and the first, second and third different processing techniques differing by at least one of:
modes of delivery of precursor materials into the porous structure andformation mechanisms of the first, second and third different materials from the precursor materials, the depositing of the first material being controlled such that there are first residual voids in the porous structure into which the second material is deposited and the depositing of the second material being controlled such that there are second residual voids in the porous structure into which the third material is deposited.