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Showing 1-25 of 338 resultsfor "Index Terms":Tribology
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Overview of Green Tribology in Recent World: Fundamentals and Future Development
2023 International Conference on Science, Engineering and Business for Sustainable Development Goals (SEB-SDG)
Year: 2023 | Conference Paper |
This study centres on green tribology based on its ecological stability, environmental and biological implications. Green tribology focuses on the science and technology of low energy use, lower carbon emission, lesser environmental cost, and high standard of living $(3l+1h)$. This leads to the reduction of natural impact on the human mobility, energy assurance and innocuous to the biological syst...Show More
Railgun Tribology: Characterization and Control of Multishot Wear Debris
Railgun tribology describes the friction and wear sciences of interacting surfaces in relative motion. The novel tribological feature of railguns is the use of high-speed, high-current sliding electrical contacts for the conversion of the electrical energy in a current pulse into projectile kinetic energy. Several wear processes affect the life of components used to construct the bore of a railgun...Show More
Fomblin Multidentate Lubricants for Ultra-Low Magnetic Spacing
B. Marchon;X.-C. Guo;T. Karis;H. Deng;Q. Dai;J. Burns;R. Waltman
This paper discusses a new class of lubricants for disk application, designed for ultra-low magnetic spacing. By tying down the middle of the long perfluoropolyether (PFPE) Fomblin chain to the overcoat surface with additional functional groups, one can achieve the very low clearance needed for the future, sub-5 nm flying height head-disk interface. Bulk synthesis and characterization are describe...Show More
Lubricant Dynamics in the Sub-Nanometer Clearance Regime
IEEE Transactions on Magnetics
Cited by: Papers (21)
This paper reviews the present state of understanding of lubricant-slider interactions in a rigid disk drive. As slider flying heights are rapidly approaching the intrinsic limit of a disk topography (1-3 nm), it has become apparent that disk-slider clearance of less than a nanometer can be achieved, at least on a laboratory setup. We will discuss the implication of such low spacing on the lubrica...Show More
Humidity effects in magnetic recording
T.E. Karis;B. Marchon;M.D. Carter;P.R. Fitzpatrick;J.P. Oberhauser
IEEE Transactions on Magnetics
Cited by: Papers (10)
Humidity effects in magnetic recording are reviewed. We highlight the progress made toward quantifying water adsorption on lubricated overcoats, leading up to the present understanding of humidity effects on magnetic recording tribology. Recently, it was found that moisture is also absorbed by hygroscopic atmospheric contaminants to form liquid nanodroplets on the overcoat. Rheological and dielect...Show More
MEMS Rotary Actuator using an Integrated Ball Bearing and Air Turbine
TRANSDUCERS 2007 - 2007 International Solid-State Sensors, Actuators and Microsystems Conference
Year: 2007 | Conference Paper |
Cited by: Papers (8)
The first silicon air-driven rotary actuation mechanism based on encapsulated ball bearings is reported. The method of integrating a silicon air turbine with a ball bearing support mechanism has been developed for silicon turbomachinery and tribological investigations. Rotational speeds up to 37,000 rpm and continuous operation longer than 24 hours were measured. Qualitative analysis is also prese...Show More
Bio-inspired shaft seal in coolant pump for electric vehicles
Yoshitaka Nakanishi;Takuro Honda;Keiji Kasamura;Yuta Nakashima;Keisaku Nakano;Kenji Kondo;Hidehiko Higaki
2016 IEEE International Conference on Renewable Energy Research and Applications (ICRERA)
Year: 2016 | Conference Paper |
Cited by: Papers (6)
Electric vehicles require a high-power device, such as a semiconductor power device, for their power control. Power devices have the drawback of high heat-generation. Water-cooling is an effective method for cooling these power devices. Their durability is affected by the performance of the shaft seal in the coolant pump. The shaft seal, in which a rotating shaft passes between liquid phase and ga...Show More
Integrated Crayons for Adaptive Needs
2016 IEEE Frontiers in Education Conference (FIE)
Year: 2016 | Conference Paper |
Cited by: Papers (1)
Education is an inherent right for all individuals. In addition, all individuals no matter what their cognitive level or physical abilities, have a right to be able to experience and participate in educational activities just as their same aged peers do. It is the job of the professionals who work with these individuals to ensure that they have access to the tools that will allow them to be the mo...Show More
A proposal for construction of the surface pressure map distribution with tribological considerations at stump-liner interface in prosthetic application
Mariana Rotariu;Marius Turnea;Dragos Arotaritei;Robert Filep;Mihai Ilea
2013 E-Health and Bioengineering Conference (EHB)
Year: 2013 | Conference Paper |
Cited by: Papers (1)
The authors propose a construction of surface pressure maps based on a liner and taken into consideration the tribological aspects for the construction's optimization of prosthesis. The methodology proposed can be used in achieving individualized kinetic schemes that adapt in real time to ensure an optimal and functional system in the blunt-prosthesis. The construction of the pressure map is made ...Show More
Study of media design on acoustic emission and take-off velocity by using the Taguchi method
IEEE Transactions on Magnetics
Cited by: Papers (1)
This paper presents the results obtained from the optimization of disk design parameters to achieve the less acoustic emission (AE) signal and take-off velocity (TOV), and the steady and less stiction performance by using Taguchi experimental design with a four-factor three-level (L9) orthogonal array. The factors considered were laser bump height (BH), bump spacing (BS), overcoat type, and lubric...Show More
Investigation of tribological and mechanical properties of PEEK-TiO2 composites
2017 8th International Conference on Mechanical and Aerospace Engineering (ICMAE)
Year: 2017 | Conference Paper |
Cited by: Papers (1)
PEEK (poly-ether-ether-ketone) is a semi crystalline thermoplastic with excellent mechanical and chemical resistance properties. In this work the influence of TiO2 nanoparticle at various concentration (0.5, 1 and 1.5 wt. %) on tribological and mechanical properties of PEEK were investigated. The mechanical properties of PEEK Nano composites were studying to evaluate the influence of the nanoparti...Show More
This study investigates the tribology performance of padded sliders on different designs of laser zone texture in comparison with that of conventional slider. A one-sided change in the laser bump parameter will not satisfy tribological requirements. Optimization of stiction and micro-wear should be an important consideration in LZT design and padded slider design. It is found that the padded slide...Show More
Air-Bearing Design Towards Super Stable Head-Disk Interface
Bo Liu;MingSheng Zhang;Yijun Man;Shengkai Yu;Gonzaga Leonard;Yansheng Ma;Febianna Tjiptoharsono
Asia-Pacific Magnetic Recording Conference 2006
Year: 2006 | Conference Paper |
Pushing recording density towards Tb/in2 and beyond requires reducing flying height, the mechanical spacing between head-slider and disk-media, to 2.5~3 nm or even lower. One critical challenge at such ultra-low flying height is how to come up with super-stable head-disk interface design so as to achieve stable flying height even with the strong appearance of the short-range interaction forces, su...Show More
Nano-structured carbide-derived carbon films and their tribology
Carbide-derived carbon (CDC) is a form of carbon produced by reacting metal carbides, such as SiC or TiC, with halogens at temperatures high enough to produce fast kinetics, but too low to permit the rearrangement of the carbon atoms into an equilibrium graphitic structure. The structure of CDC is derivative of the original carbide structure and contains nanoscale porosity and both Sp2 and Sp3 bon...Show More
Coupling simulation between tribology and dynamic of flexible multi-body of piston crankshaft system
2010 International Conference on Mechanic Automation and Control Engineering
Year: 2010 | Conference Paper |
Based on a seven-cylinder diesel, coupling analysis between tribology and dynamics of flexible multi-body is studied. The flexible multi-body dynamic model is established using ADAMS and ANSYS, and the film forces models and computation program are constructed based hydrodynamic lubrication theory considering tribology action of cylinder-piston and crankshaft-bearing system, the coupling simulatio...Show More
Prediction on Tribology Behavior of PEEK Composites Using Back Propagation Artificial Neural Networks
2009 WASE International Conference on Information Engineering
Year: 2009 | Conference Paper |
A multi-layer back propagation artificial neural network (BPNN) was used to predict the friction coefficient and the specific wear rate of short fiber reinforced polyetheretherketone (PEEK) composites. The best network structure for property forecast is decided as 5-[29]1-2. The train function is trainlm, and the transfer functions from input to hidden layers and from hidden to output layers are l...Show More
Lubricant Dynamics in the Sub-Nanometer Clearance Regime
Asia-Pacific Magnetic Recording Conference 2006
Year: 2006 | Conference Paper |
This paper reviews the present state of understanding of lubricant-slider interactions in a rigid disk drive. As slider flying heights are rapidly approaching the intrinsic limit of a disk topography (1-3 nm), it has become apparent that disk-slider clearance of less than a nanometer can be achieved, at least on a laboratory set-up. We will discuss the implication of such low spacing on the lubric...Show More
Ultra-thin overcoats for future hard disks
E. Rismani;R. J. Yeo;N. Satyanarayana;S. K. Sinha;C. S. Bhatia
2012 Digest APMRC
Year: 2012 | Conference Paper |
One of the main limitations of increasing the areal density of modern hard disks is to reduce the magnetic spacing at the head-disk interface. This entails the reduction of the thicknesses of the DLC and the PFPE layers which may lead to insufficient protection of the magnetic media against wear and corrosion. This research aimed to resolve this issue by shallow embedment of energetic C+ ions into...Show More
Ultra-thin overcoats for future hard disks
E. Rismani;R. J. Yeo;N. Satyanarayana;S. K. Sinha;C. S. Bhatia
Year: 2012 | Conference Paper |
Essentials and Future Progress of Green Tribology in Industry 4.0
Adediran Adeolu A;Joseph F. Kayode;Sunday L Lawal;Sunday A. Afolalu;Elewa Remilekun Racheal
2024 International Conference on Science, Engineering and Business for Driving Sustainable Development Goals (SEB4SDG)
Year: 2024 | Conference Paper |
Tribology is a new branch of tribology, which is based on a combination of microelectromechanical systems (MEMS) and nanomaterials (NEMS). It has a wide range of applications in the fields of engineering, engineering, and nanotechnology. This review focuses on the current state of the art of the field of tribology and its applications in modern industry. It also discusses the importance of reducin...Show More
Green Tribology, Sustainable Lubrication Practices and Environmental Impact: A Mini Review
2024 International Conference on Science, Engineering and Business for Driving Sustainable Development Goals (SEB4SDG)
Year: 2024 | Conference Paper |
This research paper is a review of the environmental impact on sustainable lubrication. Sustainability is becoming a more prominent theme in the industrial scene, which is forcing companies to review their operational procedures. With an emphasis on environmentally friendly substitutes such synthetic and bio-based alternatives, this study investigates the function that lubricating practices play i...Show More
Modeling and analyzing of an H-drive precision XY stage
2010 International Conference on Mechanic Automation and Control Engineering
Year: 2010 | Conference Paper |
Cited by: Papers (6)
This paper discussed the model of an H-drive precision XY stage of asymmetric structure in order to improve the H-drive performance. It analyzed the characteristics of dual input dual output (DIDO) of the H-drive precision XY stage during different mass ratio of x slide and y beam as well as position of x slide. The analysis presented the changing rule of stage's mass center and payload ratio of t...Show More
Performance of high-speed grease lubricated hybrid ceramic ball bearing
To simplify the lubricating system for high-speed bearings and improve its reliability, grease lubricated high-speed hybrid ceramic bearings were theoretically and experimentally researched. Bearings with an outer race of 62 mm and eleven 9.525-mm balls were investigated. Traction coefficient and flash temperature between the bearing races and the balls were calculated and the results show that th...Show More
Tribological Testing and Standardization at the Micro‐ and Nanoscale
Metrology and Standardization for Nanotechnology: Protocols and Industrial Innovations
Year: 2017 | Book Chapter |
This chapter introduces tribology and discusses scale effects at macro‐, micro‐, and nanoscale. It highlights the lack of international standardization in micro‐ and nanotribology. With the increasing advance of computational capabilities, different numerical methods have been employed to predict the tribological behavior at the nanoscale. Analytical methods such as molecul...Show More
On-line tribology measuremtns on lubricated rigid disks
1990 IEEE International Magnetics Conference (INTERMAG)
Year: 1990 | Conference Paper |
First Page of the Article
Show MoreSelf‐Assembled and Supramolecular Nanomaterials
Essentials in Nanoscience and Nanotechnology
Year: 2016 | Book Chapter |
Summary In reality, magnetic interactions always compete with van der Waals forces (and possibly other types of forces), which become increasingly important with decreasing particle size. Self‐assembly also poses a number of substantial intellectual challenges. Molecular self‐assembly can be achieved by using three common approaches which includes self‐assembly through phys...Show More
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