Results 271 to 280 of about 6,710,712 (351)

Lubrication in a Sea Water Environment

SAE Technical Paper Series, 1963
<div class="htmlview paragraph">Since the Navy's habitat is the ocean area of the world, sea water is an environmental factor which must be reckoned with and, if possible, used to advantage where lubrication of ship' s machinery is concerned. Three situations within the above concept are (<span class="xref">1</span>) protection from ...
W. V. SMITH, L. G. SCHNEIDER
openaire   +1 more source

Tribological and physical properties of PTFE-NBR self-lubricating composites under water lubrication

, 2020
Purpose This paper aims to explore the possibility of converting the nitrile butadiene rubber (NBR) water-lubricated bearing material into a self-lubricating bearing material by the action of polytetrafluoroethylene (PTFE) particles and water ...
Wei Feng, Lei Yin, Y. Han, Jiaxu Wang, K. Xiao, Junyang Li   +5 more
semanticscholar   +1 more source

Sliding friction characteristics of styrene butadiene rubbers with varied surface roughness under water lubrication

Tribology International, 2019
We investigated the effect of the surface topography of rubbers on their wet sliding friction characteristics. For six types of rubber samples with different viscoelastic properties, rubber specimens with five levels of surface roughness were prepared ...
T. Ido, Takeshi Yamaguchi, Kei Shibata, Kosuke Matsuki, K. Yumii, K. Hokkirigawa   +5 more
semanticscholar   +1 more source

Water Lubrication of Ni/Al2O3 Composite Coatings Sliding With Si3N4

, 2020
Inspired by the excellent water lubrication properties of Al2O3, two methods are used to fabricate Ni/Al2O3 composite coatings for water lubrication. One is the conventional composite electroplating technique (one-step process). The other is depositing
Jialong Huang, Q. Dai, Guanghu Jin, Wei Huang, Xiaolei Wang   +4 more
semanticscholar   +1 more source

Water droplet lubrication for micromachines

Materials Science, 2007
Water droplets placed on hydrophilic surface decrease the friction coefficient in the process of sliding over the hydrophobic surface. The droplets placed between these surfaces sustain loads of up to 170 mN and the friction coefficient for these surfaces is equal to 1.1 · 10−3.
K. Hiratsuka, A. Bohno, H. Mendo
openaire   +1 more source

Friction properties of polyacrylamide hydrogel particle/HDPE composite under water lubrication

Polymer, 2019
In order to apply the hydration lubrication of soft material in heavy load engineering fields, a series of polyacrylamide (PAAm) hydrogel particle/high-density polyethylene (HDPE) composites were prepared.
Chaobao Wang, Xiuqin Bai, C. Dong, Zhiwei Guo, C. Yuan   +4 more
semanticscholar   +1 more source

Water lubrication of PTFE composites

Industrial Lubrication and Tribology, 2015
Purpose– The paper aims to present results on the friction and the wear of polytetrafluoroethylene (PTFE) and eight commercially available composites with PTFE matrix, for tests done on shoe/roller tribotester with water lubrication in open circuit. There are pointed out particular tribological processes within the superficial layers of the composites ...
Lorena Deleanu, Constantin Georgescu
openaire   +1 more source

Branched polyethyleneimine modified carbon nanoparticles as the effective additives of water lubrication

Fullerenes, nanotubes, and carbon nanostructures, 2019
Branched polyethyleneimine (PEI) modified carbon nanoparticles (CNPs-PEI) with an average particle size of 20.1 nm were facile synthesized by hydrothermal treatment of citric acid and PEI.
Zihao Mou, Baogang Wang, Zhiyu Huang
semanticscholar   +1 more source

Experimental investigation on Stribeck curves of different elastic modulus materials under oil and water lubrication conditions

Industrial Lubrication and Tribology, 2019
Purpose The purpose of this paper is to study the influence of friction coefficient of materials with different elastic modulus on the variation of velocity and load under water lubrication and oil lubrication conditions.
Hua Zhang, Guangwu Zhou, P. Zhong, Kepeng Wu, Xingwu Ding   +4 more
semanticscholar   +1 more source

The excellent anti-wear and friction reduction properties of silica nanoparticles as ceramic water lubrication additives

Ceramics International, 2018
Water lubricated ceramics have gained extensive attention in recent years due to superior mechanical and environmental-friendly properties. Meanwhile nanoparticles have been found to greatly enhance the tribological properties when added into lubricants ...
Mei Ding, B. Lin, Tianyi Sui, Anying Wang, Shuai Yan, Qiang Yang   +5 more
semanticscholar   +1 more source