Results 91 to 100 of about 266,126 (206)

Rheological behavior of lithium grease with CNTs/GNPs hybrid nanocomposite as an additive

, 2018
Purpose The purpose of this paper is to investigate the rheological characteristics of graphene nanoplatelets (GNPs) and hybridized nanocomposite consisting of multi-walled carbon nanotubes (MWCNTs) and GNPs as an additive on lithium-based grease.
Abou Bakr Elshalakany, Alaa Mohamed, Tarek Osman, Aly Khatab, Mohamed Ashour   +4 more
core   +1 more source

The ROF+ methodology for grease life testing [PDF]

, 2013
Very often, the service life of grease lubricated rolling bearings is determined by the so called “grease life”. This can be tested on R0F test rigs, which have been available for this since more than 40 years.
van den Kommer, A., Deinhofer, L., Lugt, Pieter Martin, Lindgren, H.   +3 more
core   +1 more source

Grease-like coupling agent based on metal ionization method for low-frequency ultrasonic NDT

Results in Physics, 2019
In long-distance NDT based on ultrasonic guided waves with low-frequency excitation, the most commonly used industrial coupling agents are grease-like coupling agents.
Lei Zhang, Yuan Yang, Xiaoliang Yang, Xiaoyuan Wei   +3 more
doaj   +1 more source

A Model for Shear Degradation of Lithium Soap Grease at Ambient Temperature [PDF]

, 2017
In this article, the shear degradation of lithium 12-hydroxy stearate grease will be measured using an in-house-developed Couette aging machine. In this device the shear rate is well defined.
Lugt, Piet M., Bosman, Rob, Zhou, Yuxin, Lugt, Pieter Martin   +3 more
core   +2 more sources

UV laser radiation inhibits domain inversion in lithium niobate

, 2008
Continuous wave UV laser (λ=244 nm) irradiation of the +z face of lithium niobate single crystals inhibits ferroelectric domain inversion in the volume of the crystal which lies immediately below the UV exposed ...
Ying, Yongjun, Muir, Alistair C., C. L. Sones, T. Jungk, Y. J. Ying, Mailis, Sakellaris, R. W. Eason, A. C. Muir, Sones, Collin L., Eason, Robert W., Hoffmann, Ákos, A. Hoffmann, Jungk, Tobias, S. Mailis, Soergel, Elisabeth, E. Soergel   +15 more
core   +2 more sources

Study on the sliding tribological behavior of ZIF-8 under lubricating grease conditions

Nanotechnology and Precision Engineering
ZIF-8 is widely applied in lubrication, adsorption, and catalysis owing to its unique physicochemical properties. Previous experimental studies have demonstrated its feasibility as a lubricant additive. In the present work, the lubricating performance of
Ling Pan, Zhi Li, Yunli Wu, Kaikui Zheng, Yuqing Han   +4 more
doaj   +1 more source

Propiedades fisicoquímicas y tribológicas de una grasa grafitada de Jatropha curcas L y jabón de litio//Physicochemical and tribological properties of graphite grease based on Jatrophacurcas L oil and lithium soap

Ingeniería Mecánica, 2014
Las grasas lubricantes son consideradas una dispersión coloidal de un espesante en un fluido lubricante. Los aceites vegetales son ampliamente usados en muchas formulaciones de grasas.
Juliano‐Chitue de Assunção‐Nascimento, Francisco Lafargue‐Pérez, Luis Reyes‐Semanat, Manuel Díaz‐Velásquez   +3 more
doaj  

The application of biochar as an alternative to graphite in mineral greases – Tribological and rheological property studies

Industrial Crops and Products
This study aims to investigate the possibility of replacing a critical raw material - graphite - with an ecological biochar material used as a functional additive to mineral greases thickened with lithium stearate. Biochar is obtained by pyrolysing wheat
Monika Łożyńska, Jarosław Molenda, Rafał Kozdrach, Paweł Radulski, Karolina Dziosa, Monika Makowska   +5 more
doaj   +1 more source

Upcycling Lithium Oxalate into High-Performance Lithium Stearate Grease Thickeners for Electric Vehicle Lubrication

Lithium-ion battery recycling generates lithium-containing intermediates that offer potential for conversion into high-value products. Among these intermediates, lithium oxalate emerges as a promising alternative precursor for lubricant production ...
Julio Ignacio Urzúa, Dario F. Zambrano, Jessica Gutiérrez González, Andreas Rosenkranz, Bastián Espinoza, Javier Marqués-Henríquez, Cristian Castillo, Nicole Parra-Muñoz   +7 more
core   +1 more source

On the mechanism of the synergistic effect of PTFE and copper in a lithium grease lubricant

, 2011
PurposeThe purpose of this paper is to find a reason of a very high lubrication effectivity of a lithium grease filled with PTFE and copper powders when used as a lubricant between contacting steel surfaces under mixed friction conditions.Design ...
Stanisław Krawiec
core   +1 more source