MODIFIED ATMOSPHERE MELT INFILTRATION
First Claim
Patent Images
1. A ceramic matrix composite component for use in a gas turbine engine, the component comprisinga body comprising a silicon containing ceramic composite;
- andan outer region on an outer surface of the body, the outer region comprising whiskers embedded in a matrix, the whiskers comprising silicon carbide, and the matrix comprising a majority of silicon metal.
2 Assignments
0 Petitions
Accused Products
Abstract
A ceramic matrix composite component for use in a gas turbine engine and method for making the same are described herein. The component comprising a body and an outer region. The body having a silicon containing ceramic composite. The outer region on an outer surface of the body.
21 Citations
20 Claims
-
1. A ceramic matrix composite component for use in a gas turbine engine, the component comprising
a body comprising a silicon containing ceramic composite; - and
an outer region on an outer surface of the body, the outer region comprising whiskers embedded in a matrix, the whiskers comprising silicon carbide, and the matrix comprising a majority of silicon metal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- and
-
13. An in situ method for forming a silicon rich outer region along a ceramic matrix composite component for use in a gas turbine engine, the method comprising
melt infiltrating a silicon metal or alloy into a ceramic preform to form a body; -
cooling the component after the melt infiltrating; adding hydrocarbon gas to an atmosphere in contact with the body during at least a portion of the melt infiltrating, the cooling or any combination thereof; and chemically reacting the hydrocarbon gas with silicon in the body to form silicon carbide on an outer region of the body. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification