Results 41 to 50 of about 12,744 (195)

Synthesis of trimethylolpropane trioleate by using stannous oxalate catalyst

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study was conducted to synthesize trimethylolpropane trioleate (TMPTO) using a stannous oxalate catalyst and investigate the dependence of the esterification rate on reaction variables. The highest esterification rate of approximately 99% was achieved at a 2.75:1 oleic acid/trimethylolpropane, 1.5% catalyst amount, 180°C reaction ...
Oguzhan Ilgen, Sumeyye Bilgic
wiley   +1 more source

Evaluation of the tribological and mechanical behavior of SiC nanofiber/hybrid dental restorative composites

Materials Research Express
This study aimed to develop and characterize dental composites with enhanced mechanical and tribological properties. The primary objective was to systematically evaluate the effect of silicon carbide (SiC) nanofiber and nanohybrid (nanofiber/nanoparticle)
Samar E Salem, Abdallah Shokry, A H Badran, W Y Ali, Ameer Ali Kamel   +4 more
doaj   +1 more source

Correlation of Tribological Behavior and Fatigue Properties of Filled and Unfilled TPUs

Lubricants, 2019
For a long service time, fatigue has been a typical problem that mechanical sealing materials face. How does it relate to tribological performance? In this study, filled and unfilled thermoplastic polyurethanes (TPUs) were investigated.
Chao Wang, Tanja Stiller, Andreas Hausberger, Gerald Pinter, Florian Grün, Thomas Schwarz   +5 more
doaj   +1 more source

Low‐Cost Friction‐Based Force‐Limiting Connection With Reduced Sensitivity to Machining Tolerances and Accelerated Repairability

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This paper presents a novel yet practical friction‐based structural component design for low‐damage earthquake‐resistant structures. The proposed connection design is based on a conventional slotted‐bolted configuration with the novelty being the use of loose steel washer plates to establish the friction‐sliding interface.
Kaixin Chen, Georgios Tsampras, Chung‐Che Chou, Huang‐Zuo Lin, Chi‐Jeng Wu, Alvaro Córdova, Chia‐Ming Uang, Shih‐Ho Chao   +7 more
wiley   +1 more source

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

Energy 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, Bisma Ali, Turali Narayana, Mohammad Reza Chalak Qazani, Rehan Khan, Adnan Qayoum, Tabrez Qureshi, Mohd Mujtaba Ahmed   +7 more
wiley   +1 more source

Investigation on the electrical conductivity and tribological properties of NbSe2-doped lubricating grease

Materials Research Express, 2022
Developing lubricants with good electrical conductivity and good tribological properties is necessary for the power equipment. Here, niobium selenide (NbSe _2 ) and boron nitride (BN) were employed to act as additives to fabricate the lubricating greases
Lining Wu, Jie Yan, Zhengfeng Cao, Yanqiu Xia, Hao Wu   +4 more
doaj   +1 more source

Uncovering the Impact of Homogenization and Dietary Fiber on the In Vitro Digestion of Cod Protein Composite Gel

Food Safety and Health, EarlyView.
The cod protein composite gels produced through homogenization had excellent taste properties and met the requirements for Level 6—“soft and bite‐sized” of the International Dysphagia Diets Standardization Initiative Framework, making it suitable for individuals with special needs for food texture.
Yisha Xie, Yizhen Huang, Sangeeta Prakash, Yang Zhu, Xiuping Dong   +4 more
wiley   +1 more source

Tribological Properties of AlSi17Cu5Mg Alloy Modified with CuP Master Alloy with Various Speeds of Friction

Archives of Foundry Engineering, 2016
The paper presents the influence of modification with phosphorus (CuP10) on the tribological properties of the alloy AlSi17Cu5Mg coupled abrasively with cast-iron EN GJL-350.
Piątkowski J., Wieszała R.
doaj   +1 more source

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

Knee 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, Graciosa Quelhas Teixeira, Maria Ahrens, Benjamin Mayer, Cornelia Horsch, Anita Ignatius, Andreas Martin Seitz   +6 more
wiley   +1 more source

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

Lubrication 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, Pooja Sharma, Albano Cavaleiro, Arménio C. Serra, Jorge F. J. Coelho, Fabio Ferreira   +5 more
wiley   +1 more source