Results 31 to 40 of about 38,019 (302)

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

Computational Analysis of Wall Slip and Cavitation in Lubricated Sliding Systems [PDF]

, 2012
Lubrication is applied to systems in which parts are in relative motion to avoid direct contact between the surfaces. The behavior of the fluid-film in sliding bearings depends on the boundary conditions at the interface between the liquid and the ...
M, Muchammad, D.J. , Schipper, J. , Jamari, M. , Tauviqirrahman   +3 more
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

Experimental Study on the Effects of Controllable Parameters on the Healthy Operation of SF-2A Material Water-Lubricated Stern Bearing in Multi-Point Ultra-Long Shaft Systems of Ships

Journal of Marine Science and Engineering
Effective control of the health operating condition of multi-support, ultra-long shaft system water-lubricated stern bearings is crucial for supporting the intelligent maintenance and health management of ships.
Xingshan Chang, Jie Liu, Xinping Yan, Feng Sun, Hanhua Zhu, Chengmin Wang   +5 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

Bearing defect diagnosis and acoustic emission. [PDF]

, 2003
Acoustic emission (AE) was originally developed for non-destructive testing of static structures, however, over the years its application has been extended to health monitoring of rotating machines and bearings.
Mba, David, A Morhain, D Mba, Morhain, A.   +3 more
core   +1 more source

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

Electrified Damage in Motion Systems

Advanced Engineering Materials, EarlyView.
The electrified damage in motion systems is a fundamental framework presenting the degradation pathway arising from the coupling of electrical energy transport with mechanical contact and interfacial chemistry. The framework positions electrified damage as a distinct degradation regime with unique characteristic surface morphologies and failures of ...
M. Humaun Kabir, Angelina Nguyen, Hong Liang   +2 more
wiley   +1 more source

Sustainable Electrochemical Synthesis of High‐Quality MXenes: Mechanistic Insights, Applications, Challenges, and Technological Prospects

Advanced Functional Materials, EarlyView.
Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh, Madhusudhana M Devadiga, Santosh K. Tiwari, AS Dhaliwal, Gurpreet Singh Selopal   +4 more
wiley   +1 more source

水润滑橡胶轴承不同结构的摩擦噪声分析

Jixie chuandong, 2011
The friction noise of water lubricated bearing system is analyzed by using ABAQUS software.By using the analysis method of finite element complex eigenvalue and based on the positive or negative of complex eignvalue real part,the possility of bearing ...
王家序, 刘静, 肖科, 李金明
doaj