Results 31 to 40 of about 36,990 (292)

Grease film evolution in rolling elastohydrodynamic lubrication contacts

Friction, 2020
Although most rolling element bearings are grease lubricated, the underlying mechanisms of grease lubrication has not been fully explored. This study investigates grease film evolution with glass disc revolutions in rolling elastohydrodynamic lubrication
Xinming Li, Feng Guo, Gerhard Poll, Yang Fei, Ping Yang   +4 more
doaj   +1 more source

Formulation of fumed silica grease from waste transformer oil as base oil

Egyptian Journal of Petroleum, 2019
This study aimed to formulate fumed silica (FS) grease using waste transformer oil (WTO) and to investigate the grease properties. Various unexplored application of the reused WTO due to its reusable characteristic.
N. Suhaila A. Japar, M. Aizudin A. Aziz, Mohd Najib Razali   +2 more
doaj   +1 more source

Film Thickness Evolution Behavior and Mechanism of Lubricating Grease at High Speeds

Lubricants
In most cases, lubricating grease serves as the primary lubricating medium for rolling bearings, ensuring normal operation by facilitating lubrication between bearing components.
Lingtong Sun, Wenzhong Wang, Zhi Chen, Jianlong Liu, He Liang   +4 more
doaj   +1 more source

Exploring The Co-composting Potentials of Raw Grease Trap and Grease Trap-Derived Soaps: Insights into Grease Trap Modification, Calcium Supplementation, and Microbial Community Analysis

Applied Environmental Research
Managing waste with grease traps poses a challenge because of the potential environmental issues associated with its disposal. In this study, two approaches were investigated to increase the biodegradability of grease trap waste: 1) converting raw grease
Pokchat Chutivisut, Panaya Kotchaplai , Bualuang Faiyue, Nattapong Tuntiwiwattanapun   +3 more
doaj   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

Advanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang, Jianxiang Zhao, Zhaoqi Chen, Hao Gong, Yinsen Yan, Junlei Tao, Yong Yang   +6 more
wiley   +1 more source

An Experimental Study on the Distribution of Grease in Cylindrical Roller Bearings

Lubricants
The lubrication performance of bearings is greatly influenced by the distribution of the lubricant. In this study, a cylindrical rolling bearing test rig was constructed and presented.
He Liang, Yan Lu, Wenzhong Wang, Yi Sun, Jingjing Zhao, Yulong Guo   +5 more
doaj   +1 more source

Upcycling Keratin‐Based Textile Waste Into High‐Performance Hybrid Fibers Via Tuning the Interfacial Interactions

Advanced Functional Materials, EarlyView.
Keratin recovered from animal‐hair textile waste is fractionated and blended with cellulose to produce continuously spun hybrid fibers. Selecting the high‐molecular‐weight keratin fraction enables 30 wt.% keratin incorporation while maintaining high strength in dry and wet states.
Mian Zhai, Daniel Van Opdenbosch, Inge Schlapp‐Hackl, Teemu Välisalmi, Markus Linder, Michael Hummel, Wenwen Fang   +6 more
wiley   +1 more source

Ionic Gating of Liquid‐Crystal‐Like Pteridine Assemblies Enables Tunable Light Scattering

Advanced Materials, EarlyView.
Tunable optical properties emerge through developmentally regulated ionic gating, which transforms disordered, ultraviolet (UV)‐absorbing organelles into concentrically ordered, liquid‐crystal‐like light scatterers. By integrating analyses of pteridine composition, potassium‐dependent assembly, hierarchical ultrastructure, and optical behavior, the ...
Sourabh Bera, Zohar Eyal, Yael Noy, Yuval Barzilay, Siddharth Sahoo, Srikant Moharana, Avi Baram, Tali Lerer‐Goldshtein, Neta Varsano, Bar Bader, Lothar Houben, Uwe Heinig, Iddo Pinkas, Moshe Goldsmith, Tamar Unger, Shira Albeck, Andrea Sorrentino, Maxim Itkin, Sergey Malitsky, Ziv Porat, Ido Hadar, Venkata Jayasurya Yallapragada, Dvir Gur   +22 more
wiley   +1 more source

THERMAL STABILITY STUDY OF GREASE FORMULATED FROM INDUSTRIAL WASTE OIL

Platform, a Journal of Engineering, 2020
This is aimed to investigate the effect of additives on thermal stability of grease formulated with waste transformer oil (WTO). One of the key factors of grease functionality is thermal stability.
W. Rahman, Mohd Aizuddin Abdul Aziz, Norasiha Hamid, N.S.A. Japar   +3 more
doaj  

Numerical analysis of dam breaking behavior of Bingham pseudoplastic fluid by using the explicit MPS method

Nihon Kikai Gakkai ronbunshu, 2019
Grease lubrication in ball bearings is one of key technologies to reduce energy consumption and enhance lifetime in design of spacecrafts as well as general industrial machineries.
Hideyo NEGISHI, Hiroaki AMAKAWA, Kazuaki MANIWA, Shingo OBARA, Makoto HAYAMA, Daming DONG   +5 more
doaj   +1 more source