Sic composite and method for manufacturing the same
AssigneeKorea Institute of Machinery & Materials
InventorsSea-Hoon LEE, Ji-An GU, Hee-Jung LEE
Life of this patent
Estimating the term…
Abstract
The present invention relates to a SiC composite and a method for manufacturing the same. More particularly, the present invention relates to a slurry composition for ceramic matrix composites which can not only reduce the number of precursor impregnation pyrolysis (PIP) cycles but also be useful in the PIP process to increase hardness, thermal stability, and relative density.
Claims12
A slurry composition for ceramic matrix composites, comprising:
- at least 58 vol % of a SiC filler;
- a dispersion medium;
- and
- a dispersant
- wherein the SiC filler consists of only fine particles having a D50 diameter of 200 nm or less or consists of the fine particles and coarse particles having a D50 diameter of 3 μm or more in a ratio of 2:1 to 4.5:1.
A SiC/SiC composite material as a matrix of a ceramic matrix composite, the SiC/SiC composite material comprising a SiC filler and a SiC-based precursor-derived ceramic, wherein a volume ratio of the SiC filler is 60 vol % or more based on the total volume, and wherein the relative density of a green body manufactured by a slurry molding is 60% or more.
Dependencies are inferred from the claim text.