Adhesion Science and Surface Analysis. Typical Examples

Romand, M.; Charbonnier, M.; Prakash, Natarajan; Deshayes, Laurent; Linossier, Isabelle

doi:10.1080/00218469509342403

Cited by 4 publications

(5 citation statements)

References 23 publications

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“…formulation as compared to the immersion in clean water. However, a differentiation cannot be performed concerning the chemical composition of a formed layer system, since both thinkable layers, namely magnesium hydroxide and polymer layers, are less photo-emitting than the metallic surface of the alloy, a finding also reported in the studies of aluminum surfaces by Romand et al [9]. From the OSEE investigations a kind of efficiency concerning the corrosion protection properties of the adsorbing p.c.i.…”

Section: Optically Stimulated Electron Emission (Osee)mentioning

confidence: 97%

“…the work function [7]. Modifications of the surface state of metals [8] or metals covered with self-assembled monolayers (SAM) [9], of ceramics [10], of polymers and also of CFRP [11] may result in a change of the detected electron flow [12] [13]. In case of metals, the presence of electrically nonconductive substances or films on the surface would interfere with the surface photoemission, resulting in a lower value read in the scale of arbitrary units [14].…”

Section: Introductionmentioning

confidence: 99%

“…This OSEE ability of giving evidence about layers on surfaces may be useful, for instance, to determine the optimal duration of surface treatments for various substrates, as degreasing or etching. However, the technique alone will not facilitate to clearly discriminate effects of different surface treatments, since identical values may be obtained from different chemical states of the surface under investigation [9]. In this way, the technique is supposed to work in its best condition when it only differentiates an initial and a final surface state by the presence or absence of a surface contaminant [14].…”

Section: Introductionmentioning

confidence: 99%

“…In this way, the technique is supposed to work in its best condition when it only differentiates an initial and a final surface state by the presence or absence of a surface contaminant [14]. On the other hand, the device also facilitates to follow the effects of a surface treatment as a function of time, as for example to determine the growth law of an oxide film on the surface of freshly emeried copper [9].…”

Section: Introductionmentioning

confidence: 99%

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Instantly Investigating the Adsorption of Polymeric Corrosion Inhibitors on Magnesium Alloys by Surface Analysis under Ambient Conditions

Gonçalves¹,

Sanchez²,

Stamboroski³

et al. 2014

JSEMAT

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Surface engineering of magnesium alloys requires adequate strategies, processes and materials permitting corrosion protection. Liquid formulations containing corrosion inhibitors often are to be optimized according to the demands of the respective substrate and following the service conditions during its application. As an interdisciplinary approach, a combination of several techniques for instantly monitoring or elaborately analyzing the surface state of magnesium was accomplished in order to characterize the performance of new adsorbing sustainable amphiphilic polymers which recently were developed to facilitate a multi-metal corrosion protection approach. The application of established techniques like Contact Angle measurements and X-ray Photoelectron Spectroscopy investigations was supplemented by introducing related and yet faster online-capable and larger-scale techniques like Aerosol Wetting Test and Optically Stimulated Electron Emission. Moreover, an inexpensive setup was configured for scaling the inset and the extent of degradation processes which occur at local electrochemical circuits and lead to hydrogen bubble formation. Using these analytical tools, changes of the surface state of emeried AM50 samples were investigated. Even in contact with water, being a moderate corrosive medium, the online techniques facilitated detecting surface degradation of the unprotected magnesium alloy within * Corresponding author. L. M. G. Gonçalves et al. 283 some seconds. In contrast, following contact with a 1 weight% formulation of a polymeric corrosion inhibitor, surface monitoring indicated a delay of the onset of degradation processes by approximately two orders of magnitude in time. Mainly based on the spectroscopic investigations, the corrosion inhibiting effects of the investigated polymer are attributed to the adsorption of a primary polymer layer with a thickness of a few nanometers which occurs within some seconds. Immersion of magnesium for several hours brings up a protective film with around ten nanometers thickness.

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Section: Optically Stimulated Electron Emission (Osee)mentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Instantly Investigating the Adsorption of Polymeric Corrosion Inhibitors on Magnesium Alloys by Surface Analysis under Ambient Conditions

Gonçalves¹,

Sanchez²,

Stamboroski³

et al. 2014

JSEMAT

View full text Add to dashboard Cite

show abstract

“…Reviews of surface characterization have appeared in Analytical Chemistry every two years since 1977 ( − ). During this time, the field has grown significantly in the volume of papers published as well as the number of applications and diversity of surface characterization tools.…”

mentioning

confidence: 99%