- PII
- S0044453725060143-1
- DOI
- 10.31857/S0044453725060143
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 99 / Issue number 6
- Pages
- 942-951
- Abstract
- The structure of integral curves obtained by processing chronopotentiograms (CPG) of an aluminum anode polarized by a weak (at the level of one to several μA/cm) current in chloride-containing medium is self-similar. This universal property allows us to find their fitting function and calculate the reduced (compressed dependence; the initial number of points is 1000, described by the number of AFC-14 modes). The initial curve is invariant with respect to its transformed counterpart after five-fold compression. For two different types of data, obtained with open circuit and with metal polarization by microcurrent, a common fitting platform related to its parameters can be obtained. There are various methods of detrending: i.e., obtaining a trend from the original trendless noise. The simplest method of obtaining a trend that does not give computational errors is obtained from a numerical integration formula using the trapezoidal method. It is this trend, obtained from the original trendless sequence without additional data processing errors, that it makes sense to define as a clear trend. The approximation parameters can be used to compare various random processes, including those caused by reactions on the metal surface with changes in its microrelief during redox processes.
- Keywords
- алюминий хлоридсодержащий раствор анодная поляризация ток хроноионограмма флуктуации принцип самоподобия
- Date of publication
- 07.12.2024
- Year of publication
- 2024
- Number of purchasers
- 0
- Views
- 11
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