Research Article
Electroless Deposition of Ni-Cu-P Coatings Containing Nano-Al2O3 Particles and Study of Its Corrosion Protective Behaviour in 0.5 M H2SO4
Table 2
Corrosion parameters of coatings in 0.5 M H2SO4 derived from EIS measurements.
| | Concentration of nanoparticles in the bath (ppm) |
(Ω cm2) |
(Ω cm2) | CPE-Y
(Ω−1 cm−2) | |
| | 0 | 3.95 | 190.4 | 8.35 × 10−5 | 0.89 | | 5 | 2.36 | 216.0 | 9.02 × 10−5 | 0.86 | | 10 | 1.95 | 388.9 | 5.06 × 10−5 | 0.91 | | 20 | 2.19 | 799.9 | 4.77 × 10−5 | 0.93 | | 50 | 2.12 | 536.0 | 7.22 × 10−5 | 0.93 | | 100 | 2.01 | 393.1 | 6.89 × 10−5 | 0.91 | | 1000 | 2.20 | 328.6 | 7.36 × 10−5 | 0.91 |
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