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Alternative to ZDDP Additive: Study of Zinc Dialkylphosphate Lubricant Properties

[+] Author Affiliations
Clotilde Minfray, Thierry le Mogne, Jean-Michel Martin

Ecole Centrale de Lyon, Ecully, France

Teppei Tsujimoto, Jinichi Igarashi

ENEOS, Yokohama, Japan

Paper No. IJTC2008-71095, pp. 217-219; 3 pages
  • STLE/ASME 2008 International Joint Tribology Conference
  • STLE/ASME 2008 International Joint Tribology Conference
  • Miami, Florida, USA, October 20–22, 2008
  • Conference Sponsors: Tribology Division
  • ISBN: 0-7918-4336-9 | eISBN: 978-0-7918-3837-2
  • Copyright © 2008 by ASME


The friction and wear behavior of ZP additive is investigated as an alternative to ZDDP (poisonous for catalyst-based emission control systems). The effect of temperature (25°C and 100°C), of load (200 N and 320 N) and the wear kinetics (5 min and 60 min experiments) were studied. Physico-chemical characterization of the wear tracks were performed by XPS. A protection against wear even at ambient temperature was found. This feature was attributed to the presence of zinc polyphosphate in the tribofilm.

Copyright © 2008 by ASME



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