Results 81 to 90 of about 387 (132)

Voltage-Driven Growth of Phosphorus Tribofilms

Abstract Ashless phosphorus-based lubricant additives, which are increasingly deployed in next-generation formulations, often suffer from slow tribofilm formation and poor film stability, limiting their effectiveness under demanding operating conditions.
Yun Zhao, Jie Zhang, Hugh A. Spikes, JANET S. S. WONG   +3 more
openaire   +1 more source

Covalently bonded Ti3C2Tx/attapulgite sheet-rod heterostructure enabling synergistic lubrication

Frontiers in Materials
To overcome the poor dispersion and limited load-bearing capacity of two-dimensional lubricant additives in oils, we designed and synthesized a novel Ti3C2Tx MXene/Attapulgite (ATP) sheet-rod heterostructure as a high-performance lubricant additive.
Peng Zhao, Na Ma, Ming Wei, Huaiyi Wu, Zhengang Wu   +4 more
doaj   +1 more source

Synergistic tribofilm evolution and multi-scale surface transformation in hybrid CuO–Al₂O₃ nano-lubricated diesel cylinder liner interfaces

Results in Engineering
Tribological losses at the cylinder liner–piston ring interface significantly affect the efficiency and durability of diesel engines, necessitating advanced lubrication strategies.
Ponnusamy Baskar
doaj   +1 more source

Modelling of wear and tribofilm growth

, 2012
Wear is a consequence of nature which becomes costly if uncontrolled. Basic wear protection is provided by lubrication which will decrease the severity of the contact between asperities. If the conditions of a contact are such that there can be no hydrodynamic lift off by the oil and most of the contact occurs in between such asperities, the protection
openaire   +1 more source

In-situ catalysis of green lubricants into graphitic carbon by iron single atoms to reduce friction and wear

Nature Communications
Reducing friction and wear in moving mechanical systems is essential for their intended functionality. This is currently accomplished by using a large variety of anti-friction and anti-wear additives, that usually contain sulfur and phosphorous both of ...
Wei Song, Chongyang Zeng, Xiaoyang Ma, Janet S. S. Wong, Chuke Ouyang, Shouyi Sun, Weiwei Zhang, Jianbin Luo, Xing Chen, Jinjin Li   +9 more
doaj   +1 more source

Tribofilm Formation and Friction Reduction Performance on Laser-Textured Surface with Micro-Grooved Structures

Lubricants
Tribofilms, resulting from tribochemical reactions involving lubricants, additives, and metal surfaces, are pivotal in reducing friction, preventing adhesion, and minimizing wear.
Qianru Li, Renguo Lu, Hiroshi Tani, Shohei Kawada, Shinji Koganezawa, Xujun Liu, Peihong Cong   +6 more
doaj   +1 more source

Tribological Properties and Wear Mechanisms of Carbide-Bonded Graphene Coating on Silicon Substrate

C
Carbide-bonded graphene (CBG) coating, with its unique 3D cross-linked network structure, shows significant potential for protecting silicon substrates.
Xiaomeng Zhu, Xiaojun Liu, Lihua Li, Kun Liu, Jian Zhou   +4 more
doaj   +1 more source

Role of friction in tribofilm formation: Tribochemical evolution of proteins under AFM single-asperity friction

Friction
Recent studies have indicated that tribochemical reaction layers form on metal-on-metal-bearing surfaces, which may play a significant role in the performance and longevity of artificial joints.
Jiachen Chen, Heng Liu, Yu Yan
doaj   +1 more source

Influence of ZDDP tribofilm on micropitting formation and progression

Tribology International
This paper presents insights into how Zinc Dialkyl Dithiophosphate (ZDDP) influences the formation and progression of micropitting. Experimental investigations were conducted using a twin-disc tribometer in rolling-sliding contacts under mixed or boundary lubrication conditions, focusing on the impact of ZDDP on micropitting in bearing steel samples ...
Tian, Zaihao, Lu, Ping, Wang, Shuncai, Merk, Daniel, Wood, Robert   +4 more
openaire   +3 more sources

Tribofilms in Solid Lubricants [PDF]

, 2013
openaire   +1 more source