Adsorption isotherm and atomic force microscopy studies of the interactions between polymers and surfactants on steel surfaces in hydrocarbon media

2003 ◽  
Vol 263 (2) ◽  
pp. 343-349 ◽  
Author(s):  
S.D. Gurumayum Sharma ◽  
D. Moreton ◽  
B. Vincent
Keyword(s):  
Atomic Force Microscopy ◽  
Adsorption Isotherm ◽  
Force Microscopy ◽  
Atomic Force ◽  
Steel Surfaces ◽  
Hydrocarbon Media

Tribofilms Generated From ZDDP and DDP on Steel Surfaces: Part 1 — Growth, Wear and Morphology

2005 ◽  
Author(s):  
Z. Zhang ◽  
E. S. Yamaguchi ◽  
M. Kasrai ◽  
G. M. Bancroft
Keyword(s):  
Atomic Force Microscopy ◽  
Photoelectron Spectroscopy ◽  
Zinc Dialkyldithiophosphate ◽  
Edge Structure ◽  
X Ray ◽  
Force Microscopy ◽  
Atomic Force ◽  
Wide Range ◽  
Steel Surfaces ◽  
X Ray Absorption

The growth and morphology of tribofilms, generated from zinc dialkyldithiophosphate (ZDDP) and an ashless dialkyldithiophosphate (DDP) over a wide range of rubbing times (10 seconds to 10 hours) and concentrations (0.1 to 5 wt % ZDDP), have been examined using atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and X-ray absorption near edge structure (XANES) spectroscopy at the O, P and S K-edges, and the P, S, and Fe L-edges. The physical aspects of the growth and morphology of the tribofilms will be presented here (Part I) and the chemistry of the films will be discussed in (Part II).

Electrostatic Forces on the Surface of Metals as Measured by Atomic Force Microscopy

2000 ◽  
Vol 10 (1-2) ◽  
pp. 15
Author(s):  
Eugene Sprague ◽  
Julio C. Palmaz ◽  
Cristina Simon ◽  
Aaron Watson
Keyword(s):  
Atomic Force Microscopy ◽  
Electrostatic Forces ◽  
Force Microscopy ◽  
Atomic Force
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