BEHAVIOR OF BLOCKING (INERT) ELECTRODE / SOLID ELECTROLYTE INTERFACE  IN GALVANOGARMONIC CHARGING MODE. CASE OF DECELERATED DIFFUSION  AND ADSORPTION –DESORPTION OF TWO DIFFERENT KINDS OF PARTICLES

Electrochemical behavior of a cell with an interface of blocking electrode /solid electrolyte was studied in galvanogarmonic mode of charge. The possibility of application of simple and more graphic calculation technique and separation of electrochemical impedance schemes into active and reactive constituents was shown. The Jacobsen-West diffusion model was used as an equivalent electric circuit, which is valid for relatively large times or low AC frequencies. The plotting of dependences of active and reactive impedance components on AC frequency was used in order to estimate the values of parameters for studied equivalent electric circuits.

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KINETICS OF CHARGING INTERFACE OF BLOCKED ELECTRODE-SOLID ELECTROLYTE IN GALVANODYNAMIC AND POTENTIODYNAMIC MODES. CASE OF DELAYED DIFFUSION AND ADSORPTION-DESORBTION OF TWO PARTICLE OF DIFFERENT KIND

IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA ◽

10.6060/tcct.20165902.5259 ◽

2018 ◽

Vol 59 (2) ◽

pp. 41

Author(s):

Rizvan M. Guseiynov ◽

Zumrud N. Bakhmudkadieva ◽

Zaripat A. Zaiynutdinova ◽

Kheiyrulla M. Makhmudov ◽

Radzhab A. Rabzhabov

Keyword(s):

Solid Electrolyte ◽

Impedance Method ◽

Active Particles ◽

Electrochemically Active ◽

Inert Electrode ◽

Blocked Electrode ◽

Operational Impedance ◽

Long Time ◽

Adsorption Desorption ◽

Kinetics Of

The kinetics of charging the blocked (inert) electrode/ solid electrolyte interface was studied by operational impedance method in the galvanodynamic and potentiodynamic modes. For calculations the equivalent electrical scheme of Jacobsen and West method was used which is suitable in the case of long time of charging. The participation of two different electrochemically active particles in a process of delayed diffusion and adsorption-desorption was taken into account.

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“The Electro-Mechanical Analogy in Oscillation Theory”

Journal of the Royal Aeronautical Society ◽

10.1017/s036839310010361x ◽

1943 ◽

Vol 47 (385) ◽

pp. 22-26 ◽

Cited By ~ 2

Author(s):

R. G. Manley

Keyword(s):

Dynamic Stiffness ◽

Mechanical Vibration ◽

Electric Circuit ◽

Mechanical Impedance ◽

Oscillation Theory ◽

Full Description ◽

Torsional Motion ◽

Rational Basis ◽

Equivalent Electric Circuit ◽

Electric Circuits

It has long been realised that there is a precise analogy between the properties of vibrating mechanical systems and those of alternating current electric circuits. It was from this analogy that the concept of “ mechanical impedance ” (more appropriately termed “ dynamic stiffness ”) was derived, thus enabling the theory of certain types of mechanical vibration, notably torsional motion, to be put on a more rational basis.By means of analogous elements it is possible to represent a mechanical vibrating system, provided it includes no bending elements, by an equivalent electric circuit. The author has been unable to discover any full description of the process, and the object of the present paper is to set out the principles underlying the procedure and to illustrate them briefly by examples.

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Performance Assessment of Electrodeposited Thin Epoxy Films

MRS Proceedings ◽

10.1557/proc-781-z3.1 ◽

2003 ◽

Vol 781 ◽

Author(s):

Agustin Santana Lopez ◽

Mihai V. Popa ◽

Paula Drob ◽

Ecaterina Vasilescu ◽

Iulia Mirza-Rosca ◽

...

Keyword(s):

Carbon Steel ◽

Performance Assessment ◽

High Performance ◽

Electrochemical Impedance ◽

Steel Substrate ◽

Electrochemical Techniques ◽

Electric Circuit ◽

Equivalent Electric Circuit ◽

Total Period ◽

Anodic Electrodeposition

AbstractThe paper presents the experimental results concerning the performance assessment of electrodeposited epoxy films using electrochemical techniques (electrochemical impedance spectroscopy–EIS and anodic polarization) assisted by microscopical studies. The films were formed during the cathodic and anodic electrodeposition of a modified epoxy resin on carbon steel substrate. The specimens were tested in a normal aerated 3% NaCl solution at room temperature for a total period up to 1500 hours. Analysis of the impedance spectra has established an equivalent electric circuit with two time constants fitted to describe the electrodeposited epoxy film/carbon steel/electrolyte system. The time monitoring of the principal elements from the equivalent electric circuit were used to determine protective properties of the electrodeposited epoxy films. Results show a high performance of electrodeposited epoxy films, characterized by uniformity, insignificant porosity, very low water and ions permeability.

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The study of the electrochemical properties of zinc-rich coating on the base of water sodium silicate

Practice of Anticorrosive Protection ◽

10.31615/j.corros.prot.2019.94.4-6 ◽

2019 ◽

Vol 24 (4) ◽

pp. 51-58

Author(s):

Le Hong Quan ◽

Nguyen Van Chi ◽

Mai Van Minh ◽

Nong Quoc Quang ◽

Dong Van Kien

Keyword(s):

Carbon Steel ◽

Electrochemical Properties ◽

Sodium Silicate ◽

Cathodic Protection ◽

Electrochemical Impedance ◽

Steel Substrate ◽

Electrical Contact ◽

Electrochemical Impedance Spectra ◽

Pure Zinc ◽

Electric Circuits

The study examines the electrochemical properties of a coating based on water sodium silicate and pure zinc dust (ZSC, working title - TTL-VN) using the Electrochemical Impedance Spectra (EIS) with AutoLAB PGSTAT204N. The system consists of three electrodes: Ag/AgCl (SCE) reference electrode in 3 M solution of KCl, auxiliary electrode Pt (8x8 mm) and working electrodes (carbon steel with surface treatment up to Sa 2.5) for determination of corrosion potential (Ecorr) and calculation of equivalent electric circuits used for explanation of impedance measurement results. It was shown that electrochemical method is effective for study of corrosion characteristics of ZSC on steel. We proposed an interpretation of the deterioration over time of the ability of zinc particles in paint to provide cathodic protection for carbon steel. The results show that the value of Ecorr is between -0,9 and -1,1 V / SCE for ten days of diving. This means that there is an electrical contact between the zinc particles, which provides good cathodic protection for the steel substrate and most of the zinc particles were involved in the osmosis process. The good characteristics of the TTL-VN coating during immersion in a 3,5% NaCl solution can also be explained by the preservation of corrosive zinc products in the coating, which allows the creation of random barrier properties.

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МАКРОМОДЕЛИРОВАНИЕ СХЕМЫ ФАПЧ С ИСПОЛЬЗОВАНИЕМ ПОЛНОЙ ПРИНЦИПИАЛЬНОЙ СХЕМЫ ФАЗОВОГО ДЕТЕКТОРА

Nanoindustry Russia ◽

10.22184/1993-8578.2020.13.3s.295.299 ◽

2020 ◽

Vol 96 (3s) ◽

pp. 295-299

Author(s):

М.М. Гурарий ◽

М.М. Жаров ◽

Л.П. Ионов ◽

И.И. Мухин ◽

С.Г. Русаков ◽

...

Keyword(s):

Electric Circuit ◽

Schematic Diagram ◽

Equivalent Electric Circuit ◽

Phase Frequency Detector ◽

Frequency Detector ◽

A Current

В работе рассмотрены проблемы анализа схем ФАПЧ с учетом наличия неидеальностей в схеме частотно-фазового детектора с токовым ключом. Для снижения затрат на моделирование предложено использовать эквивалентную электрическую схему, содержащую полную принципиальную схему ЧФД и схемные эквиваленты макромоделей остальных блоков ФАПЧ. The paper considers the problems of analyzing the PLL circuit taking into account the presence of nonidealities in the phase-frequency detector with a current key. To reduce the simulation efforts, it has been proposed to apply an equivalent electric circuit containing the complete schematic diagram of the PFD and circuit equivalents of the macromodels of other PLL blocks.

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