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US 2016/0107940 A1Published application
Ceramic matrix composites and methods for producing ceramic matrix composites
AssigneeROLLS-ROYCE plc
InventorsAndrew J. Lazur, Adam L. Chamberlain
Life of this patent
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Abstract
A ceramic matrix composite includes a plurality of fibers embedded in a matrix. The composition of the matrix is selected to achieve a desired relationship between the mechanical and thermal properties of the matrix and the fibers.
Claims32
A method of producing a ceramic matrix composite, comprising the steps of:
- forming a network of fibers;
- and
- depositing a matrix material comprising silicon and carbon onto the fibers to form silicon carbide;
- wherein the depositing the matrix material comprises at least one of the group consisting of (1) depositing substantial amounts of silicon or carbon in excess of silicon carbide stoichiometric amounts, (2) introducing an oxygen containing gas, (3) introducing a halogen gaseous species, (4) introducing an organometallic gaseous species, or (5) a combination thereof.
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A method of producing a ceramic matrix composite, comprising the steps of:
- forming a network of fibers;
- and
- depositing a matrix material comprising silicon and carbon onto the fibers to form silicon carbide,
- wherein the deposited matrix material comprises at least one of the group consisting of 1) an amount of silicon or carbon in excess of silicon carbide stoichiometric amounts, 2) at least one element selected from the group consisting of aluminum, zirconium, boron, nitrogen, titanium, niobium, molybdenum, yttrium, ytterbium, oxygen or a combination thereof, or 3) a combination of (1) and (2).
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Dependencies are inferred from the claim text.