Electrochemical and Oxidation Behavior of Yttria Stabilized Zirconia Coating on Zircaloy-4 Synthesized via Sol-Gel Process

Table 3

Parameters of equivalent electrical circuit for sol-gel coated samples immersed in 3.5 wt.% NaCl electrolyte.

Sample	𝑅𝑠 (Ωcm^2)	CPEox		𝑅ox (Ωcm^2)	𝑅ct (Ωcm^2)	CPEdl
		𝑌0 (F⋅cm^2)	𝑛			𝑌0 (F⋅cm^2)	𝑛
Bare	32	—	—	—	1.68𝐸+5	3.00𝐸−6	1
a	16	2.00𝐸−4	0.98	1.00𝐸+5	902	8.20𝐸−6	0.52
b	21	1.00𝐸−9	0.93	6.3𝐸+7	1.90𝐸+5	5.40𝐸−9	0.95
c	27	—	—	—	1.90𝐸+8	6.00𝐸−9	0.96