Studies of polarization resistance of corroding electrodes with a new bridge-like instrument (Record no. 174857)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02128nab a2200181 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2011 xxu |
| 245 00 - TITULO | |
| Título | Studies of polarization resistance of corroding electrodes with a new bridge-like instrument |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | |
| Nombre de publicador, distribuidor, etc. | |
| Fecha de publicación, distribución, etc. | abr. 2011 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 15/04/2011 ; 15/04/2011 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 10 p. ; 045002-1 a 045002-10 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resumen del autor: Experiments with a simple bridge for the determination of polarization resistance, electrode capacitance, and time constant of corroding electrodes are presented. The novelty is the use of low-frequency square waves (e.g., 10 mHz, 5 mV peak-to-peak) impressed on the specimens via capacitors in parallel with resistors. The instrumentation is very cheap and can be put together easily. The method is non-disturbing and reasonably fast. Data from eight different corroding systems have been compared with results from electrochemical impedance spectroscopy (EIS) and potentiokinetic sweep. The polarization current can alter performance of electrodes, so polarization resistance varied substantially with the type of measurements and the measuring parameters for seven out of the eight test cases. Therefore, the instrument was designed to handle modeling with two resistance-capacitance (RC) links in series. Since the lack of a well-defined polarization resistance is not easily observed with conventional methods with potentiostats and galvanostats, the bridge may have an advantage. The system with two RC links gives two sets of values for polarization resistance and electrode capacitance. The polarization resistance of the link with the shortest time constant can apply for nearly undisturbed, steady-state corrosion. In contrast to EIS are equivalent circuits with component values found by very simple calculations. The serious limitation is that many corroding systems (e.g., diffusion-limited electrode kinetics) cannot be modeled with RC circuits. |
| 581 ## - ESTADO DE COLECCIÓN | |
| Estado de colección | 4 |
| 773 0# - CORRECCIÓN | |
| Título | Corrosion |
| Partes relacionadas | 67 |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Videm, K. |
| 9 (RLIN) | 45536 |
| Biblioteca propietaria | Biblioteca actual | Fecha de adquisición | Inventario | Total de préstamos | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|
| Biblioteca Alejandro Angel Bulgheroni | Biblioteca Alejandro Angel Bulgheroni | 05/03/2026 | 200052882 | 200052882 | 05/03/2026 | Artículo de Revista |
