The use of analytical surface tools in the fundamental study of wear

Buckley, D. H.

doi:10.1016/0043-1648(78)90109-6

Cited by 37 publications

(5 citation statements)

References 41 publications

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“…Adhesion, a manifestation of atomic bond strength over an appreciable area, has many causes, including deformation, fracture processes involved in cold welding, interface failure, and wear (Ref [1][2][3][4][5][6][7][8][16][17][18][19][20][21][22][23][24][25]. Adhesion undoubtedly depends on the area of real contact, the micromechanical properties and chemical bonding of the interface, and the modes of junction rupture.…”

Section: Adhesion Behavior In Low-pressure and Vacuum Environmentsmentioning

confidence: 99%

“…IN LOW-PRESSURE AND VACUUM ENVIRONMENTS, even a supposedly "clean" material surface will show a significant carbon, oxygen, and water contribution to the Auger electron spectroscopy (AES) and x-ray photoelectron spectroscopy (XPS) spectrum, because one or more layers of adsorbed hydrocarbons and oxides of carbon are present (Ref [1][2][3][4][5][6][7][8]. These contaminant layers mask the surface features of the solids in tribological contact.…”

mentioning

confidence: 99%

“…To understand the adhesion, friction, and wear behaviors of materials in vacuum environments, a simple experimental approach has been taken to control and characterize as carefully as possible the materials and environments in tribological studies (Ref [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. The highest-purity materials available are used in a vacuum chamber that contains an AES or XPS spectrometer, ion sputtering guns, and heating systems.…”

mentioning

confidence: 99%

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Adhesion, Friction, and Wear in Low-Pressure and Vacuum Environments

Miyoshi¹,

Abel

2017

Friction, Lubrication, and Wear Technology

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This article discusses the adhesion behavior of materials in low-pressure and vacuum environments and provides a schematic illustration of an apparatus for measuring adhesion and friction in ultrahigh vacuum. It describes the effects of low-oxygen pressures and vacuum environments on adhesion and friction, as well as the effects of defined exposure to oxygen on friction. The article discusses the wear of various metals in contact with ceramics, and alloying element effects on friction, wear, and transfer of materials. It also describes studies that characterize the contributions of surface contamination and chemical changes to tribology in low-pressure and vacuum environments.

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Section: Adhesion Behavior In Low-pressure and Vacuum Environmentsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Adhesion, Friction, and Wear in Low-Pressure and Vacuum Environments

Miyoshi¹,

Abel

2017

Friction, Lubrication, and Wear Technology

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“…This is a very important point. Most of the beautiful experiments by Buckley (1971Buckley ( , 1976Buckley ( , 1977Buckley ( , 1978 have been concerned with the force to pull clean metal surfaces apart. In some cases he finds a correlation with the number of d electrons in the metal and assumes that this is because this influences the strength of the bond.…”

Section: Interfacial Bonds Adhesion and Friction Of Metalsmentioning

confidence: 99%

Friction—The Present State of Our Understanding

Tabor¹

1981

Journal of Lubrication Technology

308

108

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This paper presents a general critical picture of our present understanding of the frictional process. In particular it emphasizes the three main elements involved, namely the true area of contact, the nature and strength of the ineljacial bonds formed at the regions of contact, and the way in which the material around the contacting regions is sheared and ruptured during sliding. Most of the paper deals with metals but reference is also made to ceramics, lamellar solids, polymers, and elastomers. The paper concludes with a discussion of areas where further progress is desirable.

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“…The vertical and lateral density distributions of adsorbed modifiers were evaluated using frequency-modulation atomic force microscopy [17]. Chemical changes in the sliding surfaces during tribology tests were analyzed using X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy [18][19][20]. which have higher surface sensitivity than electron probe microanalysis.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Study on the Tribological Characteristics of Organophosphates on Metal Surfaces

Koshima,

Hamano,

Tokairin

et al. 2024

Tribology Online

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Organophosphates are well-known as the canonical additives for lubricants. Thus, understanding of the additive behaviour is a key aspect in the design of films on metal surfaces. Different types of phosphates are added to improve their antiwear properties, but the contributions of individual esters to these properties has not been studied using a combination of practical and theoretical approaches. In this study, organophosphates were isolated with high purity and their tribological characteristics were evaluated by using a Bowdentype reciprocating friction tester and a four-ball wear tester. Mono-oleylphosphate had a lower friction than di-oleylphosphate and exhibited excellent antiwear characteristics. Analysis of the sliding surfaces using desorption electrospray ionization-mass spectrometry (DESI-MS) and X-ray photoelectron spectroscopy (XPS) indicated that the film structure could predict the occurrence factor of the tribological characteristics of the oleylphosphates. Then the adsorption energies of the monoester on iron and iron oxide surfaces were higher than those of the diester, as assessed using density functional theory (DFT) calculations, owing to the difference in their chemisorption processes, as confirmed by further DFT analysis. Studies on the reactivity of additives and their interactions with surfaces are important for understanding the tribochemistry of additives.

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The use of analytical surface tools in the fundamental study of wear

Cited by 37 publications

References 41 publications

Adhesion, Friction, and Wear in Low-Pressure and Vacuum Environments

Adhesion, Friction, and Wear in Low-Pressure and Vacuum Environments

Friction—The Present State of Our Understanding

Experimental and Theoretical Study on the Tribological Characteristics of Organophosphates on Metal Surfaces

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