Results 31 to 40 of about 1,987,255 (280)

Tribological aspect of lubrication in form tapping of high strength steel [PDF]

, 2008
Collaboration avec le LTDSThis study aims at analyzing the tribochemical mechanisms of lubrication during the process of form tapping and consequently optimizing the formulation of the lubricant. In order to correlate the tribochemical reactions with the
GENET, Nicole, LE MOGNE, Thierry, FROMENTIN, Guillaume, MARTIN, Jean-Michel, BIERLA, Aleksandra   +4 more
core  

Trimethylolpropane trioleate as eco-friendly lubricant additive

Engineering Science and Technology, an International Journal, 2022
Approximately 17.9% of fuel energy is used to overcome engine friction in passenger cars with engine frictional losses further broken down into losses along hydrodynamic (40%), elastohydrodynamic – due to pure sliding motion (40%), mixed (10%) and ...
Chiew Tin Lee, Mei Bao Lee, Siti Hartini Hamdan, William Woei Fong Chong, Cheng Tung Chong, Hedong Zhang, Allan Woei Loon Chen   +6 more
doaj   +1 more source

Effects of Mg on Microstructure and Solidification of a Hypereutectic Zn–8 wt.%Al Alloy

Advanced Engineering Materials, EarlyView.
An appreciable set of results involving thermal data, microstructure, chemical composition, and microstructural growth laws is reported for ZnAlMg alloys. Such results demonstrate that ZnAlMg alloys have high potential for applications in automotive self‐lubricating components, batteries, and electrical systems.
Raí B. de Sousa, Jeverton L. Paixão, Daylla S. Silva, Bruno S. Sobral, Mucio D. de Medeiros, José E. Spinelli, Bismarck L. Silva   +6 more
wiley   +1 more source

Numerical study on the lubrication performance of compression ring-cylinder liner system with spherical dimples. [PDF]

PLoS ONE, 2017
The effects of surface texture on the lubrication performance of a compression ring-cylinder liner system are studied in this paper. By considering the surface roughness of the compression ring and cylinder liner, a mixed lubrication model is presented ...
Cheng Liu, Yan-Jun Lu, Yong-Fang Zhang, Sha Li, Norbert Müller   +4 more
doaj   +1 more source

3D‐Printed Titanium Gyroid Scaffold Structure Integrated With Tough Hybrid Materials for Cartilage Replacement

Advanced Engineering Materials, EarlyView.
This study proposes a potential device design for joint cartilage replacement. Silica‐polytetrahydrofuran (SiO2‐PolyTHF) hybrids with customizable mechanical properties were developed to mimic the characteristics of a natural meniscus. These were synthesized through a two‐pot sol–gel hybrid process.
Yu‐Chien Lin, Gloria R. Young, Francesca Tallia, Reece N. Oosterbeek, Shaaz Ghouse, Edward Spiers, Nupur Kohli, Tom Briggs, Marc Masen, Siwei Li, Ren‐Jei Chung, Jonathan R. T. Jeffers, Julian R. Jones   +12 more
wiley   +1 more source

The Role of Ultra‐Thin Passive Films and Organic Adsorbates on Aluminum Chips for a Friction‐Induced Solid‐State Recycling Process

Advanced Engineering Materials, EarlyView.
Despite benefits to storage stability and handleability of aluminum scrap, octadecyl phosphonic acid (ODPA) SAMs reduce the tensile strength of wires produced using friction‐induced recycling. Etching and methyl diphosphonic acid (MDPA) coatings, however, have little effect.
Timothy D. Goller, Steffen Gabsa, Werner Homberg, Guido Grundmeier   +3 more
wiley   +1 more source

Identification of Local Lubrication Regimes on Textured Surfaces by 3D Roughness Curvature Radius [PDF]

, 2014
This paper proposes a new method of 3D roughness peaks curvature radius calculation and its application to tribological contact analysis as a characteristic signature of tribological contact.
Bigerelle, M., Bigerelle, M, Dubar, L., L. Dubar, Kubiak, KJ, C. Hubert, Hubert, C., M. Bigerelle, K. J. Kubiak, Bigerelle, Maxence, Hubert, Cedric, Dubar, Laurent, Kubiak, Krzysztof, Dubar, L, Kubiak, K. J., Hubert, C   +15 more
core   +1 more source

Experimental and Numerical Study on Mixed Lubrication Performance of Journal Bearing Considering Misalignment and Thermal Effect

Lubricants, 2022
The shaft misalignment under mixed lubrication is an important factor affecting the running performance of the bearing, which can occur under heavy load and unsatisfactory assembly.
Hong Guo, Jianqiao Bao, Shaolin Zhang, Minghui Shi   +3 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Steady-state Friction Characteristics of Contact Mechanical Seal

Shiyou jixie, 2023
The contact mechanical seal is mainly in a mixed lubrication state during operation, and its end clearance and surface roughness are in the same order of magnitude.In order to explore the friction and wear characteristics of contact mechanical seal in ...
Hao Muming, Song Yong, Wang Shunji, Sun Pengtao, Ren Baojie, Li Yongfan, Wang Zengli   +6 more
doaj