Tribological behavior and nature of tribofilms generated from fluorinated ZDDP in comparison to ZDDP under extreme pressure conditions—Part 1: Structure and chemistry of tribofilms

Mourhatch, Ramoun; Aswath, Pranesh B.

doi:10.1016/j.triboint.2010.10.018

Cited by 73 publications

(67 citation statements)

References 46 publications

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“…Raman spectroscopy confirmed the depolymerization of the zinc metaphosphate in zinc orthophosphate while EDX showed amazingly the diffusion of iron atoms into the tribofilm leading to the formation of a mixed zinc/iron phosphate compound in the tribofilm, near the steel substrate. These results are consistent with some XANES studies with ZDDP that indicate that both Zn and Fe phosphates are present in tribofilms [17]. The use of inert surfaces (sapphire) for carrying out the tribological tests confirmed that the presence of iron oxide was necessary to observe both a depolymerization of the zinc metaphosphate and the formation of a tribofilm.…”

Section: Discussionsupporting

confidence: 89%

Model formation of ZDDP tribofilm from a mixture of zinc metaphosphate and goethite

Berkani

Dassenoy

Minfray

et al. 2014

Tribology International

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Section: Discussionsupporting

confidence: 89%

Model formation of ZDDP tribofilm from a mixture of zinc metaphosphate and goethite

Berkani

Dassenoy

Minfray

et al. 2014

Tribology International

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“…In recent years, zinc dialkyl dithiophosphate (ZDDP), a traditional lubricating additive containing sulfur, phosphorus or zinc, is utilized widely in engine oils as AW/EP additive [Zhang, et al, 1999a;Kim and Mourhatch, 2010;Morina, et al, 2006;Taylor and Spikes, 2003]. However, this additive could cause air pollution by directly releasing these toxic gases into the air or indirectly poisoning the emission-control catalysts and block the filters in car exhaust system [Mourhatch and Aswath, 2010]. Therefore, to develop the environmental-friendly non-S, P and zinc additives was the current tendency [Yang, et al, 2013;Zhu, et al, 2009].…”

Section: Introductionmentioning

confidence: 99%

Tribological properties and action mechanism of a highly hydrolytically stable N-containing heterocyclic borate ester

Yang

Huang

Zhang

et al. 2016

ILT

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Tribological properties and action mechanism of a highly hydrolytically stable N-containing heterocyclic borate ester", Industrial Lubrication and Tribology, Vol. 68 Iss 5 pp. -Permanent link to this document: http://dx.If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation.

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“…Lower wear rate of 5% ZDDP (6.62 × 10 −8 mm 3 /Nm) than the 3% ZDDP (7.58x10 −8 mm 3 /Nm) can be explained by the higher quantity of ZnO, while their tribofilms had a similar quantity of ZnS and metaphosphate . Detected oxygen in the tribochemical composition of the ZDDP‐derived tribofilms had a fundamental function, which was bonding to Zn, P, and S elements each other . It was observed from the 3 and 5% ZDDP+boric acid tribofilm XPS analyses that increase in the concentration of oxygen carried out stronger tribofilm.…”

Section: Discussionmentioning

confidence: 92%

Tribological behavior of the low‐concentration boric acid and ZDDP lubricating oil mixtures

Özkan

Sulukan

2019

Surface & Interface Analysis

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Zinc dithiophosphate (ZDDP)‐free environmental friendly lubricating oil research studies have gained importance due to the governmental regulations over the last decade. In this study, low concentration boric acid‐base oil and ZDDP‐base oil mixtures were investigated with a ball on flat reciprocating tribometer to evaluate their tribological performances. The tribological performances of 1, 3, and 5% additive and base oil mixtures were evaluated at boundary lubrication condition in three main contexts including wear rates, surface tribochemistry, and friction. Results showed that there was no significant difference between boric acid and ZDDP friction coefficients. However, boric acid showed poor wear resistance when compared with ZDDP and it cannot be an alternative additive alone to ZDDPs.

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Tribological behavior and nature of tribofilms generated from fluorinated ZDDP in comparison to ZDDP under extreme pressure conditions—Part 1: Structure and chemistry of tribofilms

Cited by 73 publications

References 46 publications

Model formation of ZDDP tribofilm from a mixture of zinc metaphosphate and goethite

Model formation of ZDDP tribofilm from a mixture of zinc metaphosphate and goethite

Tribological properties and action mechanism of a highly hydrolytically stable N-containing heterocyclic borate ester

Tribological behavior of the low‐concentration boric acid and ZDDP lubricating oil mixtures

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