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Tribology Letters
Published in: Tribology Letters 1/2007

01-07-2007

Ostwald ripening: a decisive cause of cylinder corrosive wear

Authors: Jianzhong Fu, Kyriakos D. Papadopoulos, Yunfeng Lu, Curt B. Campbell

Published in: Tribology Letters | Issue 1/2007

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Abstract

Acids formed from fuel combustion and lubricating oil breakdown can promote corrosive engine wear. Using capillary video-microcopy to investigate the neutralization of sulfuric acid droplets by overbased additives in lubricating oil, we have found that the Ostwald ripening of acid droplets may be a decisive factor of corrosive wear because it prolongs the lifetime of larger acid droplets. This finding provides a new understanding of how acids corrode engine parts, and in particular, why the most corrosive engine wear often occurs at piston top dead center, and may lead to new strategies for engine designs and lubricating oil additives.
previous article Tribological properties of asperity arrays coated with self-assembled monolayers
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Metadata
Title
Ostwald ripening: a decisive cause of cylinder corrosive wear
Authors
Jianzhong Fu
Kyriakos D. Papadopoulos
Yunfeng Lu
Curt B. Campbell
Publication date
01-07-2007
Published in
Tribology Letters / Issue 1/2007
Print ISSN: 1023-8883
Electronic ISSN: 1573-2711
DOI
https://doi.org/10.1007/s11249-007-9198-9

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