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US 12,351,531 B2Granted
Protective coating for ceramic matrix composites
AssigneeRtx Corporation
InventorImelda P. Smyth
Life of this patent
Estimating the term…
Abstract
An article has a substrate and a layer atop the substrate. The layer has: a matrix comprising at least one of hafnium silicate (HfSiO4) and ytterbium disilicate (Yb2Si2O7); and barium magnesium alumino silicate (BMAS).
Claims20
A method for coating a substrate, the method comprising:
- applying, in a single slurry, a combination of:
- at least one of hafnium oxide (HfO2) and ytterbium oxide (Yb2O3);
- silicon carbide (SiC);
- and
- barium magnesium aluminosilicate (BMAS);
- and
- heating.
4 more elements
Dependencies are inferred from the claim text.