Results 191 to 200 of about 5,642,087 (236)

Tribological properties of a binderless carbide

Wear, 1999
The tribological properties of a binderless carbide (BL) have been evaluated in abrasion and sliding wear tests. Conventional cemented carbides and ceramics were used as reference materials. The worn surfaces were studied with scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX).
H Engqvist, N Axén, S Hogmark
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Tribological and Mechanical Properties

1980
Publisher Summary This chapter explores the interactions between ion beams and metal surfaces that can lead to changes in mechanical properties. Tribology is a study of friction, lubrication, and wear of engineering surfaces with a view to understanding surface interactions in detail and prescribing improvements in given applications.
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Tribological properties of COPNA resin

Wear, 1992
Abstract In this study, the effects of the addition of several solid lubricants on the hardness, bending strength, impact strength and tribological properties of COPNA (SK) resin were evaluated. The solid lubricants were polytetrafluoroethylene (PTFE), molybdenum disulphide (MoS 2 ) and graphite (GP). The results are summarized as follows. 1. (1)
Isamu Sekiguchi, Kazuhisa Kubota, Yasushi Oyanagi, Masao Kosaka, Yoshihisa Sone   +4 more
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Tribological Properties of Copper Alloys

2021
Abstract This chapter covers the friction and wear behaviors of copper alloys. It describes the compositions and forms of copper available and their suitability for applications involving friction, different types of erosion, and adhesive and abrasive wear.
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Synthesis and tribological properties of nanogrease

Industrial Lubrication and Tribology, 2018
Purpose To enhance the tribological properties of nanogrease, one of the new technologies was used to synthesize a nanogrease having carbon nanotubes (CNTs) nanoparticles (NPs) with different concentrations. The microstructures of the synthesized NPs were characterized and evaluated by x-ray diffraction spectroscopy (XRD) and transmission electron ...
Alaa Mohamed, Mohamed Hamdy, Mohamed Bayoumi, Tarek Osman   +3 more
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On Tribological Properties of HCR-Gears

Trybologia, 1998
The advantages of the high contact ratio (HCR) involute gears (contact ratio in excess of 2) compared with the standard gears (contact ratio less than 2) are: bigger load capacity, more uniform torque transmission and noise reduction. This is the result of double and triple teeth pair contact alternatively, instead of single and double contact.
Lovrin, Neven, Križan, Božidar
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Anisotropic tribological properties of SiC

Wear, 1982
Abstract The anisotropic friction, deformation and fracture behavior of singlecrystal SiC surfaces were investigated in two categories. The first is that in which friction and wear of SiC arises primarily from adhesion between sliding solid surfaces in contact and the second is where friction and wear of SiC occur as a result of the surface sliding ...
Kazuhisa Miyoshi, Donald H. Buckley
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Tribological Properties of Limonene Bisphosphonates

Tribology Letters, 2015
Limonene was chemically modified by reacting it with dialkyl phosphites of varying alkyl structures under inert atmosphere in the presence of free radical initiators. The reaction gave a mixture of mono- and di-adduct products and was optimized to produce only the di-adduct product limonene bisphosphonate by forcing both limonene double bonds to react ...
Girma Biresaw, Grigor B. Bantchev
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Tribological properties of carbonized photoresist

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1991
AISI 52100 bearing steel samples were coated with 0.3 to 0.8 μ.m AZ 5210 photoresist by conventional spinning techniques. Ion bombardment with N, Al, and P ions in the dose range of 1016 cm−2 and at an energy of 200 keV was conducted to carbonize the resist and to mix the carbonlike layer with the steel substrate.
R. Öchsner, A. Kluge, L. Frey, H. Ryssel   +3 more
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Tribological Properties of Drilling Fluids, Use of Polymer Additives to Improve Tribological Properties

Drilling fluids can be clay-based, oil-based, and polymer-based. Polymer drilling fluids reduce friction in the drill string. Polymer drilling fluids also prevent jamming of the drilling tool and perform an anti-corrosion function. Friction is one of the key characteristics of drilling equipment wear. Reducing friction reduces metal wear, which in turn
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