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Extreme‐pressure behaviour of lubricated ceramic/steel couples
Author(s) -
Bartelt G.,
Becker R.,
Zimmermann B.
Publication year - 1997
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.3010100103
Subject(s) - lubrication , ceramic , materials science , metallurgy , ball (mathematics) , zinc , hexadecane , composite material , chemistry , mathematics , organic chemistry , mathematical analysis
The friction and wear behaviour of lubricated ceramic/steel couples was studied, for increasing loads, with a four‐ball tester. For the steel spheres of ceramic/steel couples, a transition point to severe wear was observed, which occurred at loads four to five times higher than the transition for the corresponding steel/steel couple. The extreme‐pressure behaviour for conditions of lubrication with pure hexadecane is compared with the results for lubrication with solutions containing zinc di‐n‐butyl dithiophosphate or zinc di‐sec‐butyl dithiophosphate.