1. RF-PLASMA PROTECTIVE COATING ON SILVER- COPPER ALLOYS USING HDMSO/O2/AR PRECURSORS.
- Author
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Abd EL-Moaz, Y., Mohamed, W., Rifai, M., Morgan, N., and Abdel Ghany, N.
- Subjects
COPPER alloys ,PROTECTIVE coatings ,METAL coating ,CONTACT angle ,SILVER-copper alloys ,ANTHOLOGY films - Abstract
Due to its excellent adherence to the metal substrate, Hexamethyledisiloxan was employed in the present study to create transparent barrier coating films that protect metal artifacts from corrosion. The deposition procedure used radio frequency plasma enhanced chemical vapor deposition (RF-PECVD). Using scanning electron microscopy combined with energy dispersive X-ray (SEM-EDX) and Fourier-transform infrared spectroscopy (FT-IR), the surfaces of the deposited films were identified and characterized. Atomic force microscopy was used to examine surface topography and roughness (AFM). Water contact angle measurement was used to determine the hydrophobic property (WCA). Moreover, a spectroscopic ellipsometer was used to measure the film's thickness (SE). Following the Siloxane protective layer's PECVD deposition, colorimetric measurement (CM) was utilized to assess surface appearance alterations. Electr-ochemical impedance spectroscopy (EIS) was used to study how siloxane coatings for metal substrates protect against corrosion as a function of RF power and gas input composition. It was found that the siloxane thin film's adhesion characteristics to the silver-copper alloy substrate were affected by the substrate pretreatment process and the consumed power during the deposition process. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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