초록 ▼

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

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.

대표청구항 ▼

We claim: 1. 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 th

We claim: 1. 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. 2. The turbomachinery component according to claim 1, wherein the material comprises at least one aluminum-based compound selected from the group consisting of V2AlC, and Ta4AlC3. 3. The turbomachinery component according to claim 1, wherein the substrate surface is a coating of the material consisting essentially of at least one compound having the chemical formula Mn+1AXn. 4. 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. 5. 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. 6. The turbomachinery component according to claim 5, wherein the group A element is at least one element selected from the group consisting of aluminum, gallium, indium, and tellurium. 7. The turbomachinery component according to claim 5, wherein the substrate surface is a coating of the material consisting essentially of at least one compound having the chemical formula Mn+AXn. 8. The turbomachinery component according to claim 5, wherein the material consisting essentially of at least one compound having the formula Mn+1AXn 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.