Physicochemical Properties and Performance Characteristics of Urea Greases Based on Group I Mineral Base Oils

2020 ◽  
Vol 60 (9) ◽  
pp. 1094-1099
Author(s):  
A. S. Lyadov ◽  
Yu. M. Yarmush ◽  
V. A. Ivlev
Keyword(s):  
Physicochemical Properties ◽  
Performance Characteristics ◽  
Base Oils ◽  
Group I ◽  
And Performance ◽  
Mineral Base

Effect of shale adhesion agents on the physicochemical properties and performance characteristics of bitumen emulsions

2017 ◽  
Vol 51 (2) ◽  
pp. 131-133
Author(s):  
S. B. Romadenkina ◽  
A. A. Sverchkov ◽  
A. Yu. Zemlyakov ◽  
O. V. Kleimenov
Keyword(s):  
Physicochemical Properties ◽  
Performance Characteristics ◽  
And Performance ◽  
Bitumen Emulsions

scholarly journals TRIBOLOGICAL PROPERTIES OF MINERAL BASE OILS WITH TUNGSTEN DISULPHIDE?(WS2) NANOPARTICLES IN BOUNDARY LUBRICATION CONDITIONS

2018 ◽  
Vol 39 (2) ◽  
pp. 91-100
Author(s):  
Setyo Widodo ◽  
M Hanifuddin ◽  
Rona Malam Karina
Keyword(s):  
Friction And Wear ◽  
Friction Modifier ◽  
Wear Characteristic ◽  
Base Oil ◽  
Tungsten Disulphide ◽  
Base Oils ◽  
Group I ◽  
Lubrication Conditions ◽  
Friction And Wear Characteristics ◽  
Mineral Base

Friction affects the efficiency of a mechanical system. This paper discusses the influence of Tungsten Disulphide (WS2) as a friction modifier (FM). Friction and wear characteristics of base oil as a result of the addition of 0.1% and 0.5 % weight of WS2 were studied. WS2 nanoparticles were mixed with base oil using magnetic stirrer at 50oC for 60 minutes, then were homogenized in an ultrasonic homogenizer for 1 hour. Friction and wear characteristic of these mixtures were tested using four-ball and HFRR test-rig. The results show that the addition of both 0.1% and 0.5% WS2 nanoparticles increased by around 40% the anti-wear characteristic of mineral base oil group I and 12% for other groups of base oils. The increase in friction coefficients was in a range of 7.5% to 35% as a result of the addition of additives.

Acoustic and Performance Characteristics of an Ideally Twisted Rotor in Hover

2021 ◽  
Author(s):  
Nicole A. Pettingill ◽  
Nikolas S. Zawodny ◽  
Christopher Thurman ◽  
Leonard V. Lopes
Keyword(s):  
Performance Characteristics ◽  
And Performance
Sign in / Sign up

Export Citation Format

Share Document