Tribological studies of rhenium doped fullerene-like MoS2 nanoparticles in boundary, mixed and elasto-hydrodynamic lubrication conditions

Lena Yadgarov; Vincenzo Petrone; Rita Rosentsveig; Yishay Feldman; Reshef Tenne; Adolfo Senatore

doi:10.1016/j.wear.2012.11.084

Tribological studies of rhenium doped fullerene-like MoS2 nanoparticles in boundary, mixed and elasto-hydrodynamic lubrication conditions

Lena Yadgarov, Vincenzo Petrone, Rita Rosentsveig, Yishay Feldman, Reshef Tenne, Adolfo Senatore

Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

Abstract

The tribological properties of rhenium-doped inorganic fullerene-like MoS₂ nanoparticles were studied in poly alpha olefin oil, and compared to inorganic fullerene-like (IF) MS₂ (M=Mo,W) nanoparticles and 2H-MoS₂ platelets. For this purpose a rotational disc tribometer was used. Different regimes in the Stribeck curve, i.e., boundary, mixed and elasto-hydrodynamic lubrication conditions were studied. A precipitous reduction in friction and wear of oil suspensions with nanoparticles were observed for the entire IF samples. However, Re-doped IF exhibited the best results, presumably due to their reduced tribocharging and agglomeration. The various tribological mechanisms of solid state additives are discussed.

Original language	English
Pages (from-to)	1103-1110
Number of pages	8
Journal	Wear
Volume	297
Issue number	1-2
DOIs	https://doi.org/10.1016/j.wear.2012.11.084
State	Published - 5 Jan 2013

Keywords

Boundary lubrication
Inorganic fullerene-like nanostructures
Nanotribology
Solid nano lubricants
Stick-slip

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.wear.2012.11.084

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@article{121565c7955349b8b4e98c2d0ff221da,

title = "Tribological studies of rhenium doped fullerene-like MoS2 nanoparticles in boundary, mixed and elasto-hydrodynamic lubrication conditions",

abstract = "The tribological properties of rhenium-doped inorganic fullerene-like MoS2 nanoparticles were studied in poly alpha olefin oil, and compared to inorganic fullerene-like (IF) MS2 (M=Mo,W) nanoparticles and 2H-MoS2 platelets. For this purpose a rotational disc tribometer was used. Different regimes in the Stribeck curve, i.e., boundary, mixed and elasto-hydrodynamic lubrication conditions were studied. A precipitous reduction in friction and wear of oil suspensions with nanoparticles were observed for the entire IF samples. However, Re-doped IF exhibited the best results, presumably due to their reduced tribocharging and agglomeration. The various tribological mechanisms of solid state additives are discussed.",

keywords = "Boundary lubrication, Inorganic fullerene-like nanostructures, Nanotribology, Solid nano lubricants, Stick-slip",

author = "Lena Yadgarov and Vincenzo Petrone and Rita Rosentsveig and Yishay Feldman and Reshef Tenne and Adolfo Senatore",

note = "Funding Information: Support to this Research was provided by the European Commission through the 7th framework programme project AddNano on “The Development and scale-up of innovative nanotechnology-based processes into the value chain of the lubricants market” - FP7-NMP-2008-LARGE-2 Project No. 229284. R.T. gratefully acknowledges the support of ERC project INTIF 226639, the Israel Science Foundation , the Harold Perlman Foundation , the Irving and Azelle Waltcher Foundation , and the Irving and Cherna Moskowitz Center for Nano and Bio-Nano Imaging . R.T. is the Drake Family Chair in Nanotechnology and director of the Helen and Martin Kimmel Center for Nanoscale Science.",

year = "2013",

month = jan,

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doi = "10.1016/j.wear.2012.11.084",

language = "الإنجليزيّة",

volume = "297",

pages = "1103--1110",

journal = "Wear",

issn = "0043-1648",

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T1 - Tribological studies of rhenium doped fullerene-like MoS2 nanoparticles in boundary, mixed and elasto-hydrodynamic lubrication conditions

AU - Yadgarov, Lena

AU - Petrone, Vincenzo

AU - Rosentsveig, Rita

AU - Feldman, Yishay

AU - Tenne, Reshef

AU - Senatore, Adolfo

N1 - Funding Information: Support to this Research was provided by the European Commission through the 7th framework programme project AddNano on “The Development and scale-up of innovative nanotechnology-based processes into the value chain of the lubricants market” - FP7-NMP-2008-LARGE-2 Project No. 229284. R.T. gratefully acknowledges the support of ERC project INTIF 226639, the Israel Science Foundation , the Harold Perlman Foundation , the Irving and Azelle Waltcher Foundation , and the Irving and Cherna Moskowitz Center for Nano and Bio-Nano Imaging . R.T. is the Drake Family Chair in Nanotechnology and director of the Helen and Martin Kimmel Center for Nanoscale Science.

PY - 2013/1/5

Y1 - 2013/1/5

N2 - The tribological properties of rhenium-doped inorganic fullerene-like MoS2 nanoparticles were studied in poly alpha olefin oil, and compared to inorganic fullerene-like (IF) MS2 (M=Mo,W) nanoparticles and 2H-MoS2 platelets. For this purpose a rotational disc tribometer was used. Different regimes in the Stribeck curve, i.e., boundary, mixed and elasto-hydrodynamic lubrication conditions were studied. A precipitous reduction in friction and wear of oil suspensions with nanoparticles were observed for the entire IF samples. However, Re-doped IF exhibited the best results, presumably due to their reduced tribocharging and agglomeration. The various tribological mechanisms of solid state additives are discussed.

AB - The tribological properties of rhenium-doped inorganic fullerene-like MoS2 nanoparticles were studied in poly alpha olefin oil, and compared to inorganic fullerene-like (IF) MS2 (M=Mo,W) nanoparticles and 2H-MoS2 platelets. For this purpose a rotational disc tribometer was used. Different regimes in the Stribeck curve, i.e., boundary, mixed and elasto-hydrodynamic lubrication conditions were studied. A precipitous reduction in friction and wear of oil suspensions with nanoparticles were observed for the entire IF samples. However, Re-doped IF exhibited the best results, presumably due to their reduced tribocharging and agglomeration. The various tribological mechanisms of solid state additives are discussed.

KW - Boundary lubrication

KW - Inorganic fullerene-like nanostructures

KW - Nanotribology

KW - Solid nano lubricants

KW - Stick-slip

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DO - 10.1016/j.wear.2012.11.084

M3 - مقالة

SN - 0043-1648

VL - 297

SP - 1103

EP - 1110

JO - Wear

JF - Wear

IS - 1-2

ER -

Tribological studies of rhenium doped fullerene-like MoS2 nanoparticles in boundary, mixed and elasto-hydrodynamic lubrication conditions

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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