Results 51 to 60 of about 844,277 (344)

Fretting wear of TiN PVD coating under variable relative humidity conditions – development of a “composite” wear law [PDF]

open access: yes, 2008
Fretting is defined as a small oscillatory displacement between two contacting bodies. The interface is damaged by debris generation and its ejection from the contact area.
Fouvry, S.   +3 more
core   +1 more source

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

open access: yesAdvanced 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   +4 more
wiley   +1 more source

Single asperity friction in the wear regime

open access: yesFriction, 2018
We used molecular dynamics simulation to investigate the friction of a single asperity against a rigid substrate, while generating debris. In the low wear regime (i.e., non-linear wear rate dependence on the contact stress, via atom-by-atom attrition ...
Yongjian Yang, Yunfeng Shi
doaj   +1 more source

Toughening β‐Ga2O3 via Mechanically Seeded Dislocations

open access: yesAdvanced Functional Materials, EarlyView.
β‐Ga2O3 is promising for next‐generation semiconductors but its brittleness limits flexible and high‐precision applications. Here, mechanically seeded dislocations introduced by surface deformation improved damage tolerance in (001) β‐Ga2O3. Nanoindentation and characterization show dislocations suppress cleavage cracks by enabling stable plastic ...
Zanlin Cheng   +5 more
wiley   +1 more source

Influence of Microstructure on Abrasive Wear Resistance of Al-12 wt% Si Alloy [PDF]

open access: yesEngineering and Technology Journal, 2012
Abrasive wear of as-cast Al-12 wt% Si alloy has been slid against SiC emery papers (grits 120 and 220). The wear rate and wear mechanism as a function of bearing pressure have been studied. The wear rate increased considerably with increasing the size of
Eman Adnan Anon
doaj   +1 more source

Dry Sliding Behavior of Qbe-2 Beryllium Bronze against 38CrMoAlA Steel in Pneumatic Downhole Motor under Different Loads

open access: yesMetals, 2021
In drilling engineering, the wear of tribo-pairs is the primary cause for the rapid failure of rotating seals in pneumatic downhole tools. In order to reduce the wear of tribo-pairs, a new type of rotating seals was designed in this work, which ...
Chenfan Liang   +3 more
doaj   +1 more source

The depletion of ZDDP additives within marine lubricants and associated cylinder liner wear in RNLI lifeboat engines [PDF]

open access: yes, 2017
Previous work of authors indicated the wear of cylinder liners in marine engines of RNLI lifeboats due to the intense lubricant degradation identified by inductively coupled plasma and Fourier Transform Infrared spectroscopy techniques.
Anand, Mayank   +3 more
core   +1 more source

Synergistic All‐in‐One Electroceutical Platform Utilizing a Plasma–Photodynamic Hybrid Approach for Enhanced Wound Healing

open access: yesAdvanced Functional Materials, EarlyView.
A flexible hybrid patch integrating a robust cold atmospheric plasma (CAP) system with a high‐power, ultrathin bio‐OLED was developed to enable synergistic wound healing. This multimodal therapy, combining plasma and photodynamic treatment, enhanced angiogenesis, cell proliferation, and collagen deposition, demonstrating superior in vivo efficacy and ...
Jun‐Yeop Song   +11 more
wiley   +1 more source

Effect of annealing on the wear resistance of CrN/CrTiSiN PVD nitride coatings

open access: yesJournal of Materials Research and Technology
Studying wear mechanisms is crucial in industry as wear significantly shortens the lifespan of equipment and components. This study investigated the effect of annealing temperatures on the wear mechanisms of CrN/CrTiSiN multilayer coatings.
Mohammadali Sohrabizadeh   +3 more
doaj   +1 more source

Composite reinforcement by oxide TiO2

open access: yesScience and Engineering of Composite Materials, 2013
This composite has been developed by solidification processing by the addition of 0.5–3. 5 wt% powders of oxide TiO2 to molten Al-Cu alloy. The dry sliding wear behavior of pins of cast composite, fabricated by the solidification of the melt-particle ...
Soltani Mehrdad, Hoseininejad Seid Abbas
doaj   +1 more source

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