Diamond film coating for mating parts
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United States of America Patent
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-
Jun 8, 1999
Grant Date -
N/A
app pub date -
Mar 9, 1993
filing date -
Mar 9, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
At least one of the mating wear surfaces of a sliding mechanical seal is coated with diamond. The coating includes an underlayer of high resistance to wear and an overlayer with a reduced resistance to wear as compared to that of the underlayer. The reduced wear resistance of the overlayer prevents damage by the diamond to the opposing mating surface during the wear-in period of use.
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