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US 2016/0102576 A1Published application
Braze materials and method for joining of ceramic matrix composites
AssigneesROLLS-ROYCE plc, Rolls-Royce North American Technologies Inc.
InventorsRaymond R. Xu, Ted J. Freeman
Life of this patent
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Abstract
A gas turbine engine includes at least two components. The first component is coupled to the second component by a melt alloy.
Claims20
A gas turbine engine vane assembly comprising:
- an airfoil made of a ceramic matrix composite material,
- a first platform made of a ceramic matrix composite material and located at a first end of the airfoil,
- a second platform made of a ceramic matrix composite material and located at a second end of the airfoil, and
- a melt alloy layer interconnecting the first and second platforms to the airfoil.
1 more element
A melt alloy comprising:
- a base element selected from the group consisting of titanium, tantalum, niobium, hafnium, silicon, and germanium, and
- at least one secondary element, different from the base element, the secondary element selected from the group consisting of chromium, aluminum, niobium, boron, silicon, germanium, and mixtures thereof.
A method of coupling two ceramic matrix composite components, the method comprising the operations of:
- procuring a first ceramic matrix composite component,
- procuring a second ceramic matrix composite component,
- applying a melt alloy between the first and second ceramic matrix components,
- heat treating the first ceramic matrix composite component, the second ceramic matrix composite component, and the melt alloy to a temperature,
- maintaining the temperature for a length of time, and
- cooling the first ceramic matrix composite component, the second ceramic matrix composite component, and the melt alloy.
3 more elements
Dependencies are inferred from the claim text.