Sliding member and method of manufacturing sliding member
AssigneeKYOCERA Corporation
InventorsTakayuki MURAKAMI, Taito NAKAMURA, Junji IKEDA
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Abstract
To provide a sliding member having improved wear resistance, and a method of manufacturing the sliding member. A femoral head ball according to an aspect of the present disclosure includes a composite ceramic containing alumina and at least one oxide other than alumina. A surface roughness Ra of the sliding surface when the femoral head ball slides against a constituent member constituting an artificial joint is not more than 0.01 μm. The sliding surface includes a plurality of recessed portions each having an opening diameter of not more than 2 μm.
Claims20
1-8. (canceled)
A method for manufacturing a sliding member, the method comprising:
- immersing a surface of a base material in a one or more strong acid solution or acid washing the surface of the base material, the base material comprising a composite ceramic, the composite ceramic including an alumina and at least one oxide except alumina.
A sliding member, comprising:
- a sliding surface configured to slide against a constituent member constituting an artificial joint;
- and
- a composite ceramic containing alumina and at least one oxide other than alumina, wherein
- the sliding surface includes a plurality of recessed portions each having an opening diameter of not more than 2 μm, and
- a surface roughness Ra of the sliding surface is not more than 0.01 μm.
Dependencies are inferred from the claim text.