No abstract is provided for this article.
This manuscript is a critical appraisal of our recent studies on the possible parameters influencing the interfacial bonding properties between carboxylic polymers and Zn surfaces as well as approaches to effectively understand interfacial phenomena. It has been shown that different surface pretreatments result in a set of ranging chemical compositions, morphologies, roughnesses and semiconductor properties, while each parameter in turn influences the interfacial properties. Moreover, polymer functional groups available for interfacial interactions effectively influence the interfacial phenomena. To overcome the limited analytical depths of the available spectroscopic techniques to study underneath thick polymer coatings, i.e. buried interfaces, several approaches are examined in this study. Polymer and metal interfaces are modeled by adsorption of the representative functional molecules forming thin semi-monolayers on the metal surface. Towards understanding the real polymer and metal interactions, polymer coatings were mechanically removed from the metal surface and residue layers were shown to exhibit the metal and polymer interface. Moreover, interfaces were analyzed by means of Kretschmann geometry in which a thin metallic substrate was deposited on an internal reflection element. In this case, an electric filed passes the metallic substrate and reaches the metal and polymer interfaces. Both formation and degradation of the interfacial bonding in dry and wet conditions were analyzed respectively. The later case was integrated with electrochemical impedance spectroscopy to obtain a thorough understanding of the ongoing polymer degradation and interfacial electrochemical interactions.
No abstract is provided for this article.
Rolling of aluminium alloys is known to alter the surface properties. Radiofrequency glow discharge optical emission spectrometry (RF GDOES) was introduced to study the elemental composition of the surface and near‐surface regions of a commercial AA3005 hot‐rolled aluminium alloy, before and after annealing treatments for full (bulk) recrystallization. Qualitative GDOES depth profiles (signal intensity as a function of sputtering time) suggest enrichment of some and depletion of other alloying elements as well as the introduction of impurity elements within the disturbed surface layer of the alloy. The depth profiles are correlated with SEM/EDXA observations in the GDOES craters. Copyright © 2004 John Wiley & Sons, Ltd.
