Ternary carbide and nitride materials having tribological applications and methods of making same
AssigneeHoneywell International Inc.
InventorsSurojit Gupta, Thirumalai G. Palanisamy, Michel Barsoum, Chien-Wei Li
Life of this patent
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Abstract
A turbomachinery component includes a substrate having a surface, the surface being a material consisting essentially of at least one compound having the chemical formula Mn+1AXn, wherein M is at least one early transition metal selected from groups IIIB, IVB, VB, and VIB, A is at least one element selected from groups IIIA, IVA, VA, VIA, and VIIA, X is one or both of carbon and nitrogen, and n is an integer between 1 and 3. The component is made by forming a compact and sintered substrate with the material, or by coating a substrate with the material.
Claims8
A turbomachinery component, comprising:
- a shaft;
- and
- a bearing assembly mounted to and in contact with the shaft,
- wherein:
- one of the shaft and the bearing assembly comprises a substrate having a first surface, the first surface consisting essentially of at least one compound having the chemical formula Mn+1AXn, wherein M is at least one early transition metal selected from group VB, A is at least one element selected from group IIIA, X is carbon, and n is an integer between 1 and 3, and the at least one compound is organized as a solid phase having a rock salt crystal structure wherein the A components are interleaved with layers of the Mn+1Xn components, and
- the other of the shaft and the bearing assembly comprises a second surface comprising a superalloy, the second surface in friction contact with the first surface.
A turbomachinery component, comprising:
- a shaft;
- and
- a bearing assembly mounted to and in contact with the shaft,
- wherein:
- one of the shaft and the bearing assembly comprises a substrate having a first surface, the first surface consisting essentially of at least one aluminum-based compound selected from the group consisting of V2AlC, Ta2AlC, and Ta4AlC3, and the other of the shaft and the bearing assembly comprises a second surface comprising a superalloy, the second surface in friction contact with the first surface.
A turbomachinery component, comprising:
- a shaft;
- and
- a bearing assembly mounted to and in contact with the shaft,
- wherein:
- one of the shaft and the bearing assembly comprises a substrate having a first surface, the first surface consisting essentially of at least one compound having the chemical formula Mn+1AXn, wherein M is at least one early transition metal selected from the group consisting of V and Ta, A is at least one element selected from group IIIA, X is one or both of carbon and nitrogen, and n is an integer between 1 and 3 and
- the other of the shaft and the bearing assembly comprises a second surface comprising a superalloy, the second surface in friction contact with the first surface.
Dependencies are inferred from the claim text.