Compliant layer for ceramic components and methods of forming the same
AssigneeROLLS-ROYCE plc
InventorsAdam Lee Chamberlain, Kang N. Lee, Andrew Joseph Lazur
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Abstract
An apparatus includes a ceramic matrix composite (CMC) component and an interface coating on the CMC component, wherein the interface coating includes a layer of at least one of the following compositions: 100 wt % Ir; 90-95 wt % Ir, 5-10 wt % Co, 1-2 wt % Al, 1-2 wt % Si; 40-50 wt % Nb, 28-42 wt % Al, 4-15 wt % Cr, 1-2 wt % Si; 90-92 wt % Mo, 4-5 wt % Si, 4-5 wt % B; or 60-80 wt % V, 20-30 wt % Cr, 2-15 wt % Ti.
Claims22
An apparatus, comprising:
- a ceramic matrix composite (CMC) component;
- and
- an interface coating on the CMC component,
- wherein the interface coating comprises a layer of
- 90-95 wt % Ir, 5-10 wt % Co, 1-2 wt % Al, 1-2 wt % Si.
A ceramic matrix composite (CMC) component with an interface coating system thereon, the interface coating system comprising;
- a bond coating on a surface of the CMC component, wherein the bond coating comprises Si;
- an interface coating on the bond coating,
- wherein the interface coating comprises a layer of
- 90-95 wt % Ir, 5-10 wt % Co, 1-2 wt % Al, 1-2 wt % Si;
- a corrosion-resistant coating on the interface coating, wherein the corrosion resistant coating comprises an alloy comprising at least one of Ti, Al, or V, an alloy comprising at least one of Ti, Al, Sn, Zr, or Mo, or an alloy comprising Ni and Cr;
- and
- a compliance-enhancing coating on the corrosion-resistant coating, wherein the compliance-enhancing coating comprises at least one of Pt, Ag, Cu, Ni, Cr, Co, or Mo.
A method, comprising:
- forming an interface coating on a ceramic matrix composite (CMC) component such that the interface coating is bonded to the ceramic component,
- wherein the interface coating comprises a layer of
- 90-95 wt % Ir, 5-10 wt % Co, 1-2 wt % Al, 1-2 wt % Si.
A turbine engine component comprising a ceramic matrix composite (CMC) component, wherein the CMC component is loaded against a metal part, wherein the CMC component comprises an interface coating adjacent to the metal part,
- the interface coating comprises a layer of
- 90-95 wt % Ir, 5-10 wt % Co, 1-2 wt % Al, 1-2 wt % Si.
Dependencies are inferred from the claim text.