Table 8 Electrochemical impedance values of Ti-6Al-4V, and 10Co/HA/T coating.

From: Effect of cobalt ions doping on morphology and electrochemical properties of hydroxyapatite coatings for biomedical applications

Sample

Day

CPEcoat

Rcoat (kΩ cm2)

CPEdl

Rct (MΩ × cm2)

Fitting error

Y0 × 10−5 (Ω−1cm−2Sn)

n

Y0 × 10−5 (Ω−1cm−2Sn)

n

Ti-6Al-4V

–

–

–

–

2.60

0.84

0.14

0.00113

10Co/HA/T

First day

2.34

0.80

8.64

1.80

0.88

13.40

0.00169

10Co/HA/T

10 days

0.39

0.89

20.81

0.54

0.75

9.05

0.00610

10Co/HA/T

20 days

1.70

0.88

1.03

2.27

0.68

8.60

0.00217

10Co/HA/T

30 days

0.67

0.86

9.22

1.14

0.61

1.89

0.00114

10Co/HA/T

40 days

0.52

0.89

1.15

1.19

0.61

0.75

0.00558

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