Research Article
Study of Zn-Ni Alloy Coatings Modified by Nano-SiO
2
Particles Incorporation
Table 5
Data obtained by electrochemical impedance spectroscopy of coatings immersed in 3% NaCl solution for 24 h.
| | Coating systems | (ohm · cm2) | (F · cm−2) | Rp (ohm · cm2) | Composition analyses (±0.2 wt.%) |
| | Zn-Ni alloy coating | 0.4 | | 320 | Zn | Ni | Cl | Fe | Si | | 71 | 6 | 10.8 | 1.30 | — | | Zn-Ni alloy composite | 6.5 | 3 × 10−6 | 560 | 85.5 | 9.73 | 4 | 0.47 | 0.8 |
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