Results 41 to 50 of about 4,317 (295)

Experimental Research on Insufficient Water Lubrication of Marine Stern Tube Journal Bearing with Elastic Polymer Bush

Polish Maritime Research, 2020
Water-lubricated bearings with polymer bushes are steadily gaining popularity due to their advantages, including environmental friendliness, relatively simple construction and long-term operation.
Barszczewska Agnieszka
doaj   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Friction-Induced Vibration in Ship Water-Lubricated Bearings: A Review

Lubricants
As key components in efforts to achieve green and sustainable development in machinery, water-lubricated stern bearings are increasingly replacing traditional oil-lubricated bearings.
Xu Guo, Xincong Zhou, Jian Huang, Ziyang Yan, Yun Yang, Ruichen Liu, Wu Ouyang, Yong Jin   +7 more
doaj   +1 more source

Research Progress on Tribological Properties of Polymer Composite Materials for Water-Lubricated Bearings [PDF]

Cailiao Baohu
Polymer composite materials have attracted considerable attention due to their excellent self-lubricating properties，high chemical stability and vibration damping and noise reduction characteristics.Water-lubricated bearings，which utilize water as the ...
TIAN Ying, CHE Qinglun, HE Ren, ZHANG Ga, ZHENG Shaomei
doaj   +1 more source

Development of porous ceramic air bearings [PDF]

, 2001
Porous air bearings enjoy some important advantages over conventional air bearing types such as increased load carrying capacity, higher stiffness and improved damping.
Roach, C.J., Roach, Christopher James
core  

Influence of Surface Finish on the Tribological Performance of AlTiBN Coatings Deposited on Forming Tools

Advanced Engineering Materials, EarlyView.
Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver, Iker Alfonso, Eneko Barba, Javier León, José Antonio García, Iñaki Zalakain, Iván Fernández Martínez, Arley García‐Carrero, Christian Almeyda, Daniel Salcedo   +9 more
wiley   +1 more source

Research Progress on High Molecular Polymer Water-Lubricated Bearing Materials

Shiyou huagong gaodeng xuexiao xuebao
Polymer composites are the primary materials for water-lubricated bearings owing to their superior wear resistance, low friction coefficient, and resistance to water and corrosion. Their performance directly governs the safety, reliability, and operating
Dandan LÜ, Ruize YUAN, Yuanbo ZHANG, Dongxiu ZHANG, Meiyue QIAO, Xiaohong SHANG, Shiwei WANG   +6 more
doaj   +1 more source

Fundamental Study of Water-Lubricated Ceramic Bearings.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1995
The accurate values of low friction coefficient of ceramics (SiC, Si3N4, Al2O3) sliding against itself in water were measured. Stribeck curves of SiC, Si3N4 and Al2O3 in water were obtained. The observed lowest value of friction coefficient is 0.001 8 for Si3N4, 0.003 8 for SiC and 0.004 2 for Al2O3.
Wong, Ho-Chieh, Umehara, Noritsugu, Kato, Koji, Nii, Katsutoshi   +3 more
openaire   +2 more sources

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

A New Method to Calculate Water Film Stiffness and Damping for Water Lubricated Bearing with Multiple Axial Grooves

Chinese Journal of Mechanical Engineering, 2020
Water lubricated guide bearings for hydro turbines and pumps are conventionally designed with multiple axial grooves to provide effectively cooling and flushing away abrasives.
Guojun Ren
doaj   +1 more source