Protection of silver-based alloys from tarnishing by means of plasma-enhanced chemical vapor deposition

被引：25

作者：

d'Agostino, R

Fracassi, F

Palumbo, F ^{[1
]}

Angelini, E

Grassini, S

Rosalbino, F

机构：

[1] Univ Bari, Dipartimento Chim, CNR, Ist Metodol Inorgan & Plasmi, Bari, Italy

[2] Politecn Torino, Dipartimento Sci Mat Ingn Chim, Turin, Italy

来源：

PLASMA PROCESSES AND POLYMERS | 2005年 / 2卷 / 02期

关键词：

plasma-enhanced chemical vapor deposition (PECVD); plasma treatment; silicon oxide; silver; tarnishing protection;

D O I：

10.1002/ppap.200400031

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

SiO2-like coatings have been deposited onto silver-based alloys by means of plasma-enhanced chemical vapor deposition (PECVD) fed with a tetraethoxysilane/ oxygen mixture in order to study their capability to protect the alloys from tarnishing. Chemical and morphological characterization of the coatings has been carried out by means of X-ray photoelectron spectroscopy (XPS), infrared absorption spectroscopy, and scanning electron microscopy, while tarnishing susceptibility has been evaluated by means of visual inspection after intermittent immersions in Na2S solution at room temperature. It has been found that coatings deposited from oxygen-rich mixtures at high input power are characterized by excellent protective properties.

引用

页码：91 / 96

页数：6

共 16 条

[1] Electrochemical impedance spectroscopy evaluation of the corrosion behaviour of Mg alloy coated with PECVD organosilicon thin film [J].