CERAMIC BALL MATERIAL, METHOD FOR MANUFACTURING CERAMIC BALL USING SAME, AND CERAMIC BALL
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United States of America
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Issued Date -
Mar 6, 2025
app pub date -
Nov 20, 2024
filing date -
Nov 20, 2024
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Abstract
A ceramic ball material according to an embodiment includes a spherical portion; and a band-shaped portion formed over a circumference of a surface of the spherical portion. The ceramic ball material has a ratio R1/R2 of 0.3 or more and less than 1.0, where R1 denotes a surface roughness of an end portion of the band-shaped portion; and R2 denotes a surface roughness of a center portion of the band-shaped portion.
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