APPLICATION OF IMPEDANCE SPECTROSCOPY FOR RESEARCH OF THE MICRO-ARC OXIDATION PROCESS

Pavel Golubkov, E.A. PECHERSKAYA, G.V. KOZLOV, T.O. ZINCHENKO, O.A. MELNIKOV, J.V. SHEPELEVA
Penza State University, Penza, Russian Federation

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Daniil Emlin 2020-09-20 01:06
Stage 1 was wihtout treatment, i.e. were controled schema and wires; Stage 2 - testing after oxidation. Is possible to select only change of the obtaining impedance data and to explain some reasons of such modification?
The device was "home-made" or not?
PG
Pavel Golubkov 2020-09-20 01:06
Daniil Emlin 2020-09-18 17:32
Stage 1 was wihtout treatment, i.e. were controled schema and wires; Stage 2 - testing after oxidation. Is possible to select only change of the obtaining impedance data and to explain some reasons of such modification? The device was "home-made"
1. When we measure without processing (in step 1), the sample is an electrode and an adjacent electrolyte. The impedance of such a sample will include not only the active resistance of the electrode and the electrolyte (and, of course, the wires), but also the capacitance of the double electric layer at the metal-electrolyte interface, which will be significant due to the small thickness of these layers.
Therefore, measuring the impedance of a raw sample makes sense.
2. Yes, the device is "home-made".

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