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pro vyhledávání: '"William C Barnhill"'
Autor:
William C Barnhill, Hong eGao, Bassem A. Kheireddin, Brian L Papke, Huimin eLuo, Brian H West, Jun eQu
Publikováno v:
Frontiers in Mechanical Engineering, Vol 1 (2015)
We have previously reported an oil-miscible phosphonium-organophosphate ionic liquid (IL) with effective anti-wear functionality when added to a base oil by itself or combined with a conventional zinc dialkyldithiophosphate (ZDDP) for a synergistic e
Externí odkaz:
https://doaj.org/article/4c6a3e8f39974aa29b561a515eba65dc
Publikováno v:
Wear. :78-82
This article examines the elasticity, hardness, and resistance-to-plastic-deformation (P/S2) measured via nanoindentation of several tribofilms and correlates these properties to friction and wear behavior. The tribofilms were generated by ball-on-pl
Autor:
William C. Barnhill, Jun Qu, Hong Gao, Sheng Dai, Donovan N. Leonard, Brian L. Papke, Alexander K. Landauer, Huimin Luo, Harry M. Meyer, Bassem Kheireddin
Publikováno v:
Advanced Materials. 27:4767-4774
Unique synergistic effects between phosphonium-alkylphosphate ionic liquids (ILs) and zinc dialkyldithiophosphate (ZDDP) are discovered when used together as lubricant additives, resulting in significant friction and wear reduction along with distinc
Autor:
Cheng Ma, Huimin Luo, Harry M. Meyer, Miaofang Chi, Jun Qu, William C. Barnhill, Brian L. Papke
Publikováno v:
Tribology Letters. 63
In this work, we investigated the feasibility of five quaternary (aprotic) and four tertiary (protic) ammonium ionic liquids (ILs) with an identical organophosphate anion as lubricant anti-wear additives. Viscosity, oil solubility, thermal stability
Autor:
Jun Qu, Cheng Ma, Harry M. Meyer, Miaofang Chi, William C. Barnhill, Brian L. Papke, Huimin Luo
Publikováno v:
ACS applied materialsinterfaces. 6(24)
Our previous work suggested great potential for a phosphonium-organophosphate ionic liquid (IL) as an antiwear lubricant additive. In this study, a set of five ILs were carefully designed and synthesized, with identical organophosphate anions but dis