Results 31 to 40 of about 18,687 (301)

The lubricating role of water in the shuttling of rotaxanes

Chemical Science, 2017
The special properties of water make it an effective lubricant in rotaxanes to enhance their shuttling.
Haohao Fu, Xueguang Shao, Christophe Chipot, Wensheng Cai   +3 more
openaire   +3 more sources

Influence of Alkali Ions on Tribological Properties of Silicon Surface [PDF]

, 2015
Tribological properties of surfaces (friction, adhesion and wear) provide challenging limitations to the design of reliable machines on the micro- and nanometer scale as the surface to volume area increases and volume, mass and inertia of the mobile ...
Siewert, Dorota, Fabianowski, Wojciech, Jarzabek, Dariusz M., Rymuza, Zygmunt, Jung, Thomas, Schift, Helmut   +5 more
core   +1 more source

Analysis of Load and Lubrication State of Racks and Pinions of Three Gorges Ship Lift Based on Actual Service Conditions

Jixie chuandong, 2023
The rack and pinion of the three gorges ship lift is a low speed and heavy load open gear transmission with hard tooth surface. Once the lubrication is poor, it is easy to cause damage such as tooth surface scuffing, which will affect the operation ...
Chen Zhuo, Shi Lubing, Feng Panpan, Li Xuefei, Chen Lin, Liu Zhongming   +5 more
doaj  

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Biomimetic approach to water lubrication with biomolecular additives

, 2011
The aim of this study is to find a connection between mechanical engineering and biotechnology by utilizing biomimetics in lubrication. The objective is to improve boundary lubrication by biomolecules in water-based systems.
T Ahlroos, M B Linder, K Holmberg, P Laaksonen, S Varjus, T J Hakala, R Mahlberg, A Helle   +7 more
core   +2 more sources

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Si3N4 as a biomaterial and its tribo-characterization under water lubrication

, 2016
Hip implant wear is recognised as the main cause of hip implant failure therefore has been widely investigated both experimentally and clinically, demonstrating the coexistence of abrasive, adhesive, fatigue and corrosive wear.
Özmen, Yılmaz
core   +1 more source

Study on Tribological Characteristics of Ultra-High Molecular Weight Polyethylene under Unsaturated Lubrication of Water and Brine

, 2022
The tribological characteristics of ultra-high molecular weight polyethylene (UHMWPE) under unsaturated lubrication of water and brine were studied. The friction coefficients and wear rates of UHMWPE at different applied loads and sliding speeds were ...
Wenhao Li, Jinzhu Zhang, Ningning Liu, Zhenhua Wang, Li, Wenhao, Liu, Ningning, Wang, Zhenhua, Zhang, Jinzhu   +7 more
core   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

A Theoretical Method for Evaluating the Lubrication Performance of the Meshing Pair Profiles in Water Flooded Single Screw Compressors Based on the Micro Deflecting Motion Trajectory

Applied Sciences, 2020
To improve the life of the meshing pair in single screw compressor (SSC), several meshing pair profiles (MPP) were proposed for raising the lubrication properties. Therefore, it is necessary to evaluate the lubrication performance of the MPPs.
Ting Li, Wei Jiang, Xuetao Gan, Diyi Chen, Rui Huang, Quanke Feng   +5 more
doaj   +1 more source