Results 11 to 20 of about 484 (177)
Some azine and azole derivatives as antioxidant additives for lithium lubricating grease
Egyptian Journal of Petroleum, 2013 Lubricating greases undergo extensive deterioration under the operation conditions and storage. Hydrocarbon chain is one of the major factors resulting in loss of the base fluid quality by formation of products having negative effects on the ...
Nabila A Ismail
exaly +3 more sources
Tribological Stress of Lubricating Greases in the Light of System Entropy
Lubricants, 2016 Lubricating greases show a structural degradation due to friction stress. The shear process dissipates energy. This results in a breakdown of the thickener structure, heat and entropy generation. Tribo-systems are energy driven systems.
Erik Kuhn
exaly +3 more sources
Correlation between System Entropy and Structural Changes in Lubricating Grease
Lubricants, 2015 Lubricating greases are colloid disperse systems consisting of a base oil and a thickener (additional additives). The lubricant is modeled as a tribological system, and the reaction of a fluid friction stress is investigated.
Erik Kuhn
exaly +3 more sources
Classification and spectrum optimization method of grease based on infrared spectrum
Friction, 2023 The infrared (IR) absorption spectral data of 63 kinds of lubricating greases containing six different types of thickeners were obtained using the IR spectroscopy.
Xin Feng +3 more
doaj +1 more source
EFFECT OF POLYMERS DISPERSING LUBRICATING GREASES ON WEAR IN DUSTY ENVIRONMENT [PDF]
Journal of the Egyptian Society of Tribology, 2011 The operating environment in cement industry is particularly severe in terms of the high ambient dust concentrations. During the severe working conditions dust concentrations of the order of 100 to 500 times higher than the normal may be encountered. The
A. S. Al-Osaimy, W. Y. Ali
doaj +1 more source
The development of polyurea greases based on paraffin-naphthenic lubricating oil VHVI-4 [PDF]
E3S Web of Conferences, 2021 The purpose of this work was to improve the tribological characteristics and low-temperature properties of polyurea greases, as well as to expand the operating temperatures of their use.
Daudi D.I. +4 more
doaj +1 more source
Quantification of Tackiness of a Grease: The Road to a Method
Lubricants, 2021 In this work, we report on the most recent progress in studying temperature influence on tackiness of greases, as well as the reproducibility of the method.
Emmanuel P. Georgiou +5 more
doaj +1 more source
Applied Sciences, 2020 The applications of biogenic lubricating greases to machine elements play important roles in the reduction of friction energy and minimizing wear in a tribological contact, as well as the prevention of environmental pollution. The aim of this work was to
Nazli Acar +4 more
doaj +1 more source
Influence of Base Oil Polarity on the Transient Shear Flow of Biodegradable Lubricating Greases
Lubricants, 2015 The scope of this study is to elucidate the physical mechanisms influencing the transient flow behavior of lubricating greases based on biogenic oleochemicals from a polarity point of view.
Martin Fiedler +5 more
doaj +1 more source
Materials Research Express, 2022 Developing lubricants with good electrical conductivity and good tribological properties is necessary for the power equipment. Here, niobium selenide (NbSe _2 ) and boron nitride (BN) were employed to act as additives to fabricate the lubricating greases
Lining Wu +4 more
doaj +1 more source