Article
Engineering, Mechanical
Neha Singh, Sujeet K. Sinha
Summary: This study investigated hybrid polymeric composites of epoxy with UHMWPE and MoS2 fillers, where the addition of base oil SN150 showed excellent tribological performance under constant contact pressure and speed, with low wear rate and friction coefficient. The fillers also imparted hydrophobic properties to the epoxy surface, reducing adhesion and friction.
Review
Polymer Science
Mohammed Abdul Samad
Summary: Polymer coatings have gained attention due to their low cost, ease of coating, low friction, and good anti-corrosion properties. Among various polymers, UHMWPE stands out for its excellent tribological properties, despite limitations such as low load-bearing capacity and low thermal stability. Researchers have developed various routes, including composite coatings, film systems, and dual film systems, to improve the tribological performance of UHMWPE coatings.
Article
Materials Science, Multidisciplinary
Jianing Xu, Chenhui Zhang, Jianbin Luo
Summary: Embedding polyelectrolyte brushes into UHMWPE provides a promising method for preparing artificial joints with prolonged lubrication and improved stability.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Engineering, Mechanical
Wojciech Litwin, Steffen Kropp
Summary: Water lubricated sliding journal bearings are commonly used in shipbuilding, pumps, and hydropower. This research investigates the wear process of sliding bearings lubricated with water containing solid particles of mineral origin, and finds that the geometry of the bearing and the size of the particles significantly affect wear.
Article
Chemistry, Physical
Sung-Jun Lee, Yoon-Chul Sohn, Chang-Lae Kim
Summary: This study evaluated the friction and wear characteristics of graphene coatings with lubricants containing different ratios of graphene ink to deionized water. Dry graphene ink and pure DI water led to peeling of the coating and rapid increase in friction coefficient, while lubricants with graphene ink added to DI water formed a lubricating film on the coating and significantly reduced the friction coefficient. Severe wear morphologies were observed under dry and pure DI water conditions, but insignificant wear morphologies were formed with the lubricant containing graphene ink. A mixing ratio of 100:10 and 100:5 of DI water to graphene ink resulted in the lowest friction coefficient and wear rate, respectively. Long-term experiments confirmed that the lubricant with a 100:10 mixing ratio exhibited excellent lubrication properties, significantly reducing the friction coefficient and wear rate compared to dry or pure DI water lubrication conditions.
Article
Engineering, Mechanical
Tao Yu, Feng Guo, Xiaohan Zhang, Hao Ji, Wenbin Duan, Peng Liang
Summary: This paper demonstrated the use of silicone oil as a secondary lubricant in water lubrication, which could significantly reduce friction and wear in short-term severe working conditions. The friction reduction ratio decreases initially with increasing ring speed but slightly increases thereafter. The wear reduction is more prominent at higher ring speeds and larger viscosity. Formation of water-excluded lubrication film by silicone oil in the whole contact zone explains the friction and wear reduction. The wettability of silicone oil on the lubrication track is reduced in a water environment, enhancing oil replenishment and increasing the film thickness.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Lupeng Wu, Le Gu, Ranran Jian
Summary: The study showed that adding graphene during lubrication of Si3N4 ceramic/GCr15 steel components can reduce friction and improve wear resistance. Graphene can act as a protective agent through lubrication mechanism, reducing wear on the rubbing surfaces.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Coatings & Films
Gozde Celebi Efe, Elif Yenilmez, Ibrahim Altinsoy, Serbulent Turk, Cuma Bindal
Summary: The present study successfully coated a UHMWPE-HAp composite film on the surface of Ti6Al4V alloy, achieving surface modification of the material. Various analyses were conducted on the composite coating, demonstrating strong adhesion, good wear resistance, and potential application in artificial hip joint replacements.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Recep Demirsoz, Mehmet Erdi Korkmaz, Munish Kumar Gupta
Summary: This study focuses on the tribological behavior of 316 L stainless steel against 100 Cr6 alloy under various cooling environments, finding that the combination of cryo and MQL cooling conditions can improve tribological performance while minimizing material volume loss and wear rates.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Engineering, Mechanical
Chaozhen Yang, Xincong Zhou, Jian Huang, Fuming Kuang, Xueshen Liu
Summary: The study analyzed the tribological performance of water-lubricated rubber bearings under different sediment particle sizes and sand types, finding that NBR worn by SiO2 particles was worse than that by sediment within a certain particle size range. Additionally, the largest wear volume of NBR occurred at particle size of 75-90 mu m, while the friction coefficient exhibited a negative correlation with sliding speed.
Article
Engineering, Mechanical
Pranav Dev Srivyas, M. F. Wani, Rakesh Sehgal, Chandra Shekhar Singh Bisht, M. S. Charoo, Ankush Raina, Mir Irfan Ul Haq
Summary: The study suggests that the combination of graphene as a solid lubricant and surface texturing can effectively reduce friction and wear in hybrid aluminum composite and chromium plated chrome steel tribopairs. Textured surfaces consistently showed lower coefficient of friction and wear volume compared to non-textured surfaces under both dry sliding and lubricated conditions.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Chemistry, Physical
Liang Huang, Qingwen Dai, Wei Huang, Xiaolei Wang
Summary: By fabricating Ni/Si3N4 composite coatings with high particle content, achieving ultra-low friction coefficient in water sliding against Si3N4 ball is possible. The essential conditions for this include the formation of smooth contact interface and the presence of silicon hydroxide as a tribo-chemical product. This behavior of ceramic composite coating may provide a new approach for low energy loss water lubrication systems.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Mechanical
Neha Singh, Sujeet K. Sinha
Summary: This study compares the properties of epoxy-based composites with different fillers and in situ liquid lubricants. The results show that the epoxy composite with base oil as the lubricant exhibits superior tribological performance, mainly due to the formation of transfer film with oil pockets on the friction surfaces, reducing adhesive interaction and friction.
Article
Chemistry, Physical
Yanfei Liu, Shengtao Yu, Wenzhong Wang
Summary: The study proposes a novel strategy for macroscale lubrication using non-layered 2D nanodiamond plates, which significantly reduce the coefficient of friction compared to conventional layered materials. This development has implications for engineering applications seeking to enhance lubrication systems at the macroscale.
Article
Engineering, Biomedical
Vidushi Sharma, Rajeev K. Gupta, Satish Kailas, Bikramjit Basu
Summary: This study critically evaluates and analyzes the tribological performance of a chemically modified graphene oxide reinforced HDPE/UHMWPE bionanocomposite as an acetabular liner material for total hip joint replacement. The results show that the modified bionanocomposite exhibits lower friction coefficient and wear rate compared to traditional materials, making it a suitable biomaterial for hip-joint prosthesis.
JOURNAL OF BIOMATERIALS APPLICATIONS
(2022)
Article
Polymer Science
Dahiru Lawal, Annas Bin Ali, Abdul Samad Mohammed
JOURNAL OF APPLIED POLYMER SCIENCE
(2016)
Article
Engineering, Mechanical
Abdul Samad Mohammed, Annas bin Ali, Merah Nesar
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
(2017)
Correction
Engineering, Chemical
Abdul Samad Mohammed, Annas Bin Ali, Nesar Merah
Article
Chemistry, Multidisciplinary
Annas Bin Ali, Franz Renz, Julian Koch, Christoph Tegenkamp, Ralf Sindelar
Article
Chemistry, Multidisciplinary
Aaron Schirra, Annas Bin Ali, Franz Renz, Ralf Sindelar, Simone Pedrazzi, Giulio Allesina
Summary: This study explores the possibility of using milled gasification biochar as an additive in the preparation of electrospinning solutions. The results show that biochar grains disperse well among the fiber mat and after carbonization, the resulting fibers have a carbon content exceeding 97%.
APPLIED SCIENCES-BASEL
(2022)