Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS

FP5

NANOMAG Berichtzusammenfassung

Project ID: G1RD-CT-2002-00692
Gefördert unter: FP5-GROWTH
Land: Italy

Pre-treatment procedure of Mg surface for improving the adhesion of PECVD coating

A process for depositing a compact SiOx thin film to coat metallic and polymeric surface for different application such as protection from corrosion of metals, protection from tarnish of silver containing surfaces, gas and liquid barrier, etc. has been obtained utilizing RF plasma fed with hexamethyldisiloxane, oxygen and Ar mixtures.

Magnesium alloys surface are contaminated by carbon containing species and by Mg-oxides and hydroxides. These contaminations affect negatively the surface properties of the metal and in particular the adhesion of coatings of different nature. It has been demonstrated that this problem can be solved by means of a pre-treatment in an RF - H2 plasma at low power density and high pressure.

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Dipartimento di Chimica Università di Bari
Via Orabona, 4
70126 Bari
Italy
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