Study of the synthesis of C:H coating by PECVD for protecting Mg‐based nano‐objects

Abstract

In the context of protecting Mg-based nano-objects for potential hydrogen storage applications, the potential of C:H layer as a barrier polymer material deposited by the plasma-enhanced chemical vapor deposition process is examined. Corrosion tests reveal (a) good barrier properties of the C:H layer and (b) suggest an increase in the internal stress with the power dissipated in the plasma. The latter is attributed to an increase in the crosslinking density of the coatings accompanied by an increase in the stiffness as shown by nanoindentation measurements. Finally, for a given set of plasma parameters, Mg-based nanowires were successfully enrobed by the C:H coatings as evidenced by scanning electron microscopy measurements.

Unlocking the Potential of Liquid Plasma Polymer Films: Characterizing Aging Effects and Their Impact on the Wrinkling Phenomenon

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Designing Nanostructured Organic-Based Material by Combining Plasma Polymerization and the Wrinkling Approach

“…Briefly, plasma polymerization consists of the activation of an organic vapor into a plasma phase, resulting in the formation of reactive species (including radicals and to a lesser extent ions), followed by their condensation on surfaces exposed to the discharge. The molecular growth mechanism, comprising a complex interplay between surface and gas phase reactions, triggers the uniqueness of PPF such as the absence of a repeating unit in their polymeric network and the outstanding range of chemical compositions they can exhibit, combined with their thermal stability and their good adhesion properties on all kinds of substrates (i.e., metals, polymers, oxides) for instance. , Furthermore, the easiness and the low environmental impact of the process coupled with the long-term economic interests of an investment makes the plasma polymerization process a reliable technique for surface engineering with a high applicative potential in the biomedical field, , for corrosion protection, , in electronics, , etc. However, nowadays, one of the limiting factors for further developments in the field is the restricted panel of possibilities to produce nanostructured plasma polymers.…”