Results 91 to 100 of about 64,500 (257)

Fretting wear of Ti(CxNy) PVD coatings under variable environmental conditions [PDF]

open access: yes, 2006
Fretting wear as a specific type of degradation is defined as an oscillatory motion at small amplitude between two nominally stationary solid bodies in mutual contact.
Blau P. J.   +4 more
core   +1 more source

Nanomaterials and Eco‐Friendly Refrigerants in Vapor Compression System: A Review of Performance and Sustainability

open access: yesEnergy Science &Engineering, EarlyView.
This review highlights how nano oils and eco‐friendly nano refrigerants enhance energy‐efficient refrigeration by improving thermal conductivity, lubrication, and system performance. The integration of rheological and tribological testing confirms reduced compressor work, better heat transfer, and higher COP using sustainable, low‐GWP refrigerants for ...
Mohammed Dilawar   +7 more
wiley   +1 more source

Gait alterations increase friction of degenerated articular cartilage: A tribological study

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To investigate the effect of gait alterations associated with osteoarthritis (OA) on the frictional properties of porcine articular cartilage (AC) in intact and degenerative conditions. Methods Forty‐eight cylindrical AC samples were harvested from 12 porcine femur condyles and equally divided between four groups with n = 12 samples ...
Luisa de Roy   +6 more
wiley   +1 more source

Influence of roughness on contact interface in fretting under dry and boundary lubricated sliding regimes [PDF]

open access: yes, 2009
This paper presents experimental results of wear process under dry and boundary lubricated metallic (AISI 1034/AISI 52100) contacting bodies with different surfaces morphologies subjected to a wide range of kinematic fretting conditions.
Kubiak, Krzysztof, Mathia, T.G.
core   +1 more source

Cobalt‐Doped Diamond‐Like Carbon Coatings Combined With Functionalised Polymers for Enhanced Tribological Performance

open access: yesLubrication Science, EarlyView.
ABSTRACT In recent years, doped diamond‐like carbon (DLC) coatings combined with functionalised copolymers have gained attention as a lubrication concept. While silicon‐doped DLC has been widely studied, polymer‐assisted lubrication on other doped DLC systems remains less explored.
Takeru Omiya   +5 more
wiley   +1 more source

Silver Matrix Composites - Structure and Properties

open access: yesArchives of Metallurgy and Materials, 2016
Phase compositions of composite materials determine their performance as well as physical and mechanical properties. Depending on the type of applied matrix and the kind, amount and morphology of the matrix reinforcement, it is possible to shape the ...
Wieczorek J.   +4 more
doaj   +1 more source

Dry sliding friction and wear response of WC-Co hardmetal pairs in linearly reciprocating and rotating contact [PDF]

open access: yes, 2011
This paper presents an experimental evaluation of friction and wear properties of WC-Co cemented carbides. A comparison is made between unlubricated rotating and linearly reciprocating pin-onplate sliding pairs. The plate specimens were WC-10wt%Co grades
Bonny, Koenraad   +7 more
core   +1 more source

Interaction of restoration processes with properties within copper‐graphene composites during direct consolidation Interaktion von Wiederherstellungsprozessen mit Eigenschaften innerhalb von Kupfer‐Graphen‐Verbundwerkstoffen während der direkten Konsolidierung

open access: yesMaterialwissenschaft und Werkstofftechnik, EarlyView.
By refining grains and additions of strengthening elements, mechanical properties of electro‐conductive copper can be increased. Fine‐grained coper‐graphene composites were directly consolidated from original powders by rotary swaging to achieve rods with enhanced mechanical properties and electric conductivity of up to 96% international annealed ...
L. Kunčická   +4 more
wiley   +1 more source

Enhanced structural and tribological performance of nanostructured Ti–15Nb alloy for biomedical applications

open access: yesResults in Physics, 2019
Low modulus β-type Ti-15Nb alloys were prepared by subjecting them to different sintering temperatures (800, 900, 1000 and 1100 °C) and their morphological and structural properties were evaluated.
Mamoun Fellah   +8 more
doaj   +1 more source

Results of a UK industrial tribological survey

open access: yes, 2013
During the summer of 2012, the National Centre for Advanced Tribology at Southampton (nCATS) undertook a UK-wide industrial tribological survey in order to assess the explicit need for tribological testing within the UK.
Harvey, T.J.   +3 more
core  

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