SLIDING MEMBER AND METHOD OF MANUFACTURING SLIDING MEMBER
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Dec 6, 2024
filing date -
Dec 6, 2024
priority date (Note) -
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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.
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