... at: dyzhang@xaut.edu.cn 28 04 2022 24 05 2022 01 06 2022 © Emerald Publishing Limited 2022 Emerald Publishing Limited Licensed re-use rights only Additives Oil lubrication Copper Composite additives Alkanolamine borate Copper wire drawing oil Friction coefficient Wear...

... a tensile tester. Hardness tests were performed using a Shore-D hardness tester with ASTM-D-22 standards. Findings Composite reinforced with 5% iron scale showed the highest tensile strength. The addition of higher amounts of iron scale particles reduced the tensile strength of the composites compared...

...Dilek Bulut; Tatjana Krups; Gerhard Poll; Ulrich Giese Purpose Elastomer seals are used in many applications. They are exposed to lubricants and additives at elevated temperatures, as well as mechanical stresses. They can only provide good sealing function when they have resistance to those...

.... Compared to the reference, the OWF tests of the additional processed samples show a slight reduction in frictional losses, though it does not justify the additional manufacturing effort (Figure 4 , right). For both cutting materials, the cylinder running surfaces honed with low contact pressure have...

... Additives ANOVA SEM Friction Wear Grease lubrication Aerodynamic lubrication Adhesive wear Antiwear Antiwear additives Spectrum load Aircraft grade bearing In grease lubrication under extreme contact load, surface asperities could benefit from milled powder MoS₂ (molybdenum...

... diffraction peaks. Figure 3 Representative XRD pattern of TiAl-10 Wt.% Ag fabricated by SPS Additives Surface analysis Solid lubricants Sliding wear Electron microscopy TiAl alloys, for their excellent mechanical properties and thermal behaviors, have been extensively developed...

...Camila Müller; Franco Leonardo Redondo; Mariana Dennehy; Andrés Eduardo Ciolino; Walter Roberto Tuckart Purpose The purpose of this study is to design a fluid formulation with good lubricant properties by using an environmentally friendly additive for: high and low contact pressure conditions...

... for metal-forming processes. Design/methodology/approach This paper studies the effect of nanoparticle additives of CuO and TiO₂ on the load-carrying capacity of a metal-forming polymer lubricant used for deep-drawing at varying temperatures. EP measurements are performed with a four-ball...

... scar while the EDS was used to analyze the deposit element on the rubbing surface of wear scar. Additives Environment Friction coefficient High temperature Environmental health and safety Brucite Lubricant Water-based In the metal forming, wear damage of tribological components...

... processing, polymeric compounds and additives. Design/methodology/approach Pure original beef tallow grease was used as a biological lubricating grease reference material for the tribological research. Beef tallow was modified and synthesized by adding special biological anti-oxidant additives, LZ anti...

...Bahaa M. Kamel; Alaa Mohamed; M. El Sherbiny; K.A. Abed Purpose The purpose of this paper is to fabricate composite nanogrease for tribological applications. Multi-walled carbon nanotubes (MWCNTs) with a size 10 nm average diameter and 5 μm in length were used as additives to calcium grease...

...Muhammad Ilman Hakimi Chua Abdullah; Mohd Fadzli Bin Abdollah; Noreffendy Tamaldin; Hilmi Amiruddin; Nur Rashid Mat Nuri Purpose This paper aims to investigate the effect of hexagonal boron nitride (hBN) nanoparticles on extreme pressure (EP) properties when used as an additive in lubricating oil...

...Laura Peña-Parás; Demófilo Maldonado-Cortés; Jaime Taha-Tijerina; Patricio García-Pineda; Gerardo Tadeo Garza; Mariana Irigoyen; Jorge Gutiérrez; Dario Sánchez Purpose – The purpose of this paper is to evaluate the extreme pressure properties of CuO and TiO₂ nanoparticle additives...

... surfaces during heat treatment and the tribological enhancement of antiwear additives when optimum concentration of fluorinated catalysts and PTFE is used in connection with reduced surface roughness and break in period. Findings – Design of Experiment software, scanning electron microscopy, energy...

... of thickener and modification with special biological additives. Design/methodology/approach – Rapeseed oil- and lard-based greases with sodium and lithium soap thickeners were mixed with either water or ethanol and modified with a special biological anti-wear additive. Tribological properties...

...Nehal S. Ahmed; Hamdy S. Abdel-Hameed; Ahmed F. El-Kafrawy; Amal M. Nassar Purpose – The aim of this paper is to solve the problem of carbonaceous deposits in automotive engines by preparing different ashless detergent/dispersant additives based on propylene oxide (PO) and different amines...

... temperature and nanoparticle volume fraction are experimentally investigated. A new correlation has been developed for correlating finding viscosity of nanofluid with varying nanoparticle volume fraction. © Emerald Group Publishing Limited 2015 Viscosity Additives Gear oils Density...

...Nehal S. Ahmed; Amal M. Nassar; Rabab M. Nasser Purpose – The purpose of this paper is to prepare novel types of copolymers and terpolymers depending on jojoba, and using them as additives for lubricating oil. Design/methodology/approach – Copolymerization of 1 mole of jojoba with 2 moles...

...Dogus Özkan; Hakan Kaleli; Yves BERTHIER; Levent Yüksek Purpose – This paper aims to investigate the wear mechanisms, formations and effectiveness of tribofilms of new developed, antiwear additive which is called mercapthocarboxylate. The mercapthocarboxylate is a sulphur-based and non-phosphorus...

... lubricating oil additives. Design/methodology/approach – To study the effect of morphology of nanoparticles on their tribological properties, rice-like CuO nanoparticles were synthesized. To improve the solubility of CuO nanoparticles in organic media, the in-situ surface modification method was used...