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Inventi Impact - Tribology

Articles

  • Inventi:etb/62/14
    PHOSPHATE ESTERS, THIOPHOSPHATE ESTERS AND METAL THIOPHOSPHATES AS LUBRICANT ADDITIVES
    David W Johnson, John E Hils

    Phosphate esters, thiophosphate esters and metal thiophosphates have been used as lubricant additives for over 50 years. While their use has been extensive, a detailed knowledge of how they work has been a much more recent development. In this paper, the use of phosphate esters and thiophosphate esters as anti-wear or extreme pressure additives is reviewed with an emphasis on their mechanism of action. The review includes the use of alkyl phosphates, triaryl phosphates and metal containing thiophosphate esters. The mechanisms of these materials interacting with a range of iron and steel based bearing material are examined.

    How to Cite this Article
    CC Compliant Citation: David W Johnson, John E Hils, Phosphate Esters, Thiophosphate Esters and Metal Thiophosphates as Lubricant Additives, Lubricants 2013, 1, 132-148; doi:10.3390/lubricants1040132. This article is distributed under the Creative Commons Attribution License(http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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