Results 41 to 50 of about 3,603 (225)

Tribological properties of polyimide composites reinforced with fibers rubbing against Al2O3

Friction, 2020
Reinforcing fillers are of great importance in tribological performance and tribofilm formation of polymeric composites. In this study, the tribological properties of aramid particle (AP) and short carbon fiber (SCF) reinforced polyimide (PI) composites ...
Huimin Qi, Ga Zhang, Zhiqin Zheng, Jiaxin Yu, Chao Hu   +4 more
doaj   +1 more source

Influence of Succinimide Dispersants on Film Formation, Friction and Antiwear Properties of Zinc Dialkyl Dithiophosphate [PDF]

, 2012
ZDDP (zinc dialkyldithiophosphate) is arguably the most successful antiwear additive ever employed in crankcase engine lubricants. It was originally used as an antioxidant and shortly afterwards recognized for its antiwear and extreme pressure ...
Zhang, Jie, Zhang, Jie
core   +1 more source

Tribological synergy between classical ZDDP and innovative MoS2 and MoO3 nanotube additives at elevated temperatures; pp. 178-184 [PDF]

Proceedings of the Estonian Academy of Sciences, 2019
One of the most important drawbacks limiting the application of MoS2 nanotubes (NTs) as an oil additive is their temperature sensitivity. Recent studies showed that MoS2 NTs can be substituted by MoO3 NTs in conjunction with S-containing lubricants by ...
Agnieszka Maria Tomala, Manel Rodríguez Ripoll, Remigiusz Michalczewski   +2 more
doaj   +1 more source

Transmission electron microscopy and energy dispersive X-ray spectroscopy on the worn surface of nano-structured TiAlN/VN multilayer coating [PDF]

, 2006
Nano-structured TiAIN/VN multilayer hard coatings grown by cathodic arc metal ion etching and unbalanced magnetron sputtering deposition have repeatedly shown low coefficients of friction and wear. In this paper, we employed the combined methods of cross-
Barnett, Blomberg, Constable, de Wit, Donohue, Erdemir, Erdemir, Helmersson, Hovsepian, Hovsepian, Koehler, Lewis, Lewis, Lim, Luo, Luo, Luo, Luo, Luo, Luo, Mayrhofer, Minfray, Münz, P. Eh. Hovsepian, Q. Luo, Rainforth, Williams, Woydt, Zhou   +28 more
core   +1 more source

Shear activation of ZDDP reaction films in the presence and absence of nanodiamonds

Applied Surface Science Advances, 2022
We explore the impact of shear stress and nanodiamond (ND) additives on the formation temperatures of thermal- and tribo- reaction films of steel samples immersed in basestock oils containing zinc dialkyl dithio-phosphate (ZDDP) additives.
Biplav Acharya, Caitlin M. Seed, Jacqueline Krim   +2 more
doaj   +1 more source

TEM-EELS study of low-friction superlattice TiAlN/VN coating: the wear mechanisms [PDF]

, 2006
A 20-50 nm thick tribofilm was generated on the worn surface of a multilayer coating TiAlN/VN after dry sliding test against an alumina counterpart. The tribofilm was characterized by applying analytical transmission electron microscopy techniques with ...
A. Erdemir, C. Mitterbauer, C. Mitterbauera, C.P. Constable, D. Bouchet, D.B. Lewis, D.B. Williams, D.S. Su, F. Hofer, G. Gassner, H. Engqvist, I.M. Ross, J.C. Sanchez-Lopez, J.C. Sanchez-Lopez, L.A. Donohue, M. Kalin, M. MacKenzie, P.Eh. Hovsepian, P.Eh. Hovsepian, P.Eh. Hovsepian, P.Eh. Hovsepian, P.H. Mayrhofer, Q. Luo, Q. Luo, Q. Luo, Q. Luo, Q. Luo, Q. Luo, S. Ruppi, S.K. Biswas, T.E. Fischer, T.E. Fischer, W. Sigle, W.D. Münz, W.M. Rainforth, W.M. Rainforth, Z. Zhou, Z. Zhou, Z. Zhou   +38 more
core   +1 more source

Tribochemical investigation of ZDDP tribofilm

, 2021
The current trend for using lower-viscosity lubricants with the aim of improving fuel efficiency of mechanical systems means that machine components are required to operate for longer periods in thin oil film, mixed and boundary lubrication conditions, where the risk of surface damage is increased. For this reason, the role of tribofilms generated from
openaire   +3 more sources

Investigation of the Effect of a Diamine-Based Friction Modifier on Micropitting and the Properties of Tribofilms in Rolling-Sliding Contacts [PDF]

, 2016
The effect of N-Tallow-1,3-DiaminoPropane (TDP) on friction, rolling wear and micropitting has been investigated with the ultimate objective of developing lubricants with no or minimal environmental impact.
Anne Neville, Ardian Morina, Eglin M, Heuberger R C, Ileana Nedelcu, Marcel C P van Eijk, Matsumoto K, Shiomi M, Siavash Soltanahmadi   +8 more
core   +1 more source

Lube Oil Wear Reduction via Organic Tribofilms [PDF]

Lubricants, 2017
Effective tribofilms are desirable to protect mechanical systems. In the research, the reduction in wear and friction were investigated through the use of organic additives. Graphene-based organic additives were prepared by surface modification of graphene using organic moiety that will provide tribochemical reaction with rubbing metal surface.
Nurul Ismail, Samira Bagheri
openaire   +3 more sources

The influence of anti-wear additive ZDDP on doped and undoped diamond-like carbon coatings [PDF]

, 2015
Diamond-like carbon (DLC) coatings are recognised as a promising way to reduce friction and improve wear performance of automotive engine components. DLC coatings provide new possibilities in the improvement of the tribological performance of automotive ...
Bull, Crobu, Daniels, Dearnaley, Dearnley, Donnet, Donnet, Erdemir, Erdemir, Fuller, Grill, Grill, Grill, Hainsworth, Haque, Haque, Haque, Haque, Hauert, Hauert, Holmberg, Jiang, Kalin, Lanigan, Lawes, Leyland, Martin, Moulder, Oliver, Podgornik, Podgornik, Renondeau, Richardson, Robertson, Robertson, Robertson, Stachowiak, Vengudusamy   +37 more
core   +1 more source