Impedance characteristics of aluminum with sol-gel ceria protective coating during the exposure to chloride corrosion agent
Impedansni odgovor aluminijuma sa zaštitnom prevlakom oksida cerijuma tokom izlaganja hloridnoj korozionoj sredini
Abstract
Electrochemical impedance characteristics of bare Al and Al with CeO2 coating prepared sol-gel procedure from the ceria sol are investigated. The corrosion behavior is monitored during the exposure to 3 wt. % NaCl aqueous solution. Experimental data are fitted to various equivalent electrical circuits with special attention to inductive features. Equivalent electrical circuits involving inductivity represent impedance response equally well as the ones without inductivity, although the parameter values gained from the former correspond better to the proposed model of physicochemical changes during corrosion of investigated samples.
Korozione karakteristike aluminijuma i aluminijuma na koji je naneta prevlaka oksida cerijuma sol-gel postupkom ispitivane su primenom spektroskopije elektrohemijske impedancije tokom izlaganja u vodenom rastvoru 3 mas. % NaCl. Dobijeni podaci analizirani su ekvivalentnim električnim kolima različite konfiguracije uz posebnu diskusiju koja se odnosi na pojavu induktivnog ponašanja. Ekvivalentna kola sa induktivnim elementom i bez njega podjednako dobro opisuju impedansne odgovore, mada vrednosti parametara kola u kojima je uključena induktivnost više odgovaraju predloženom modelu fizičko-hemijskih promena tokom procesa korozije ispitivanih sistema.
Keywords:
conversion coatings / Al corrosion / reversed gelation / AlO(OH) fiber network ascorrosion product / konverzione prevlake / korozija aluminijuma / reversno geliranje prevlake / AlO(OH) vlakna kao proizvod korozijeSource:
Zaštita materijala, 2016, 57, 2, 305-313Publisher:
- Belgrade, Serbia : Engineering Society for Corrosion
Funding / projects:
- Synthesis, processing and applications of nanostructured multifunctional materials with defined properties (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45019)
- New approach in designing materials for energy conversion and energy storage systems (RS-MESTD-Basic Research (BR or ON)-172060)
Collections
Institution/Community
IHTMTY - JOUR AU - Košević, Milica AU - Panić, Vladimir AU - Bajat, Jelena AU - Mišković-Stanković, Vesna PY - 2016 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1871 AB - Electrochemical impedance characteristics of bare Al and Al with CeO2 coating prepared sol-gel procedure from the ceria sol are investigated. The corrosion behavior is monitored during the exposure to 3 wt. % NaCl aqueous solution. Experimental data are fitted to various equivalent electrical circuits with special attention to inductive features. Equivalent electrical circuits involving inductivity represent impedance response equally well as the ones without inductivity, although the parameter values gained from the former correspond better to the proposed model of physicochemical changes during corrosion of investigated samples. AB - Korozione karakteristike aluminijuma i aluminijuma na koji je naneta prevlaka oksida cerijuma sol-gel postupkom ispitivane su primenom spektroskopije elektrohemijske impedancije tokom izlaganja u vodenom rastvoru 3 mas. % NaCl. Dobijeni podaci analizirani su ekvivalentnim električnim kolima različite konfiguracije uz posebnu diskusiju koja se odnosi na pojavu induktivnog ponašanja. Ekvivalentna kola sa induktivnim elementom i bez njega podjednako dobro opisuju impedansne odgovore, mada vrednosti parametara kola u kojima je uključena induktivnost više odgovaraju predloženom modelu fizičko-hemijskih promena tokom procesa korozije ispitivanih sistema. PB - Belgrade, Serbia : Engineering Society for Corrosion T2 - Zaštita materijala T1 - Impedance characteristics of aluminum with sol-gel ceria protective coating during the exposure to chloride corrosion agent T1 - Impedansni odgovor aluminijuma sa zaštitnom prevlakom oksida cerijuma tokom izlaganja hloridnoj korozionoj sredini VL - 57 IS - 2 SP - 305 EP - 313 DO - 10.5937/ZasMat1602305k ER -
@article{ author = "Košević, Milica and Panić, Vladimir and Bajat, Jelena and Mišković-Stanković, Vesna", year = "2016", abstract = "Electrochemical impedance characteristics of bare Al and Al with CeO2 coating prepared sol-gel procedure from the ceria sol are investigated. The corrosion behavior is monitored during the exposure to 3 wt. % NaCl aqueous solution. Experimental data are fitted to various equivalent electrical circuits with special attention to inductive features. Equivalent electrical circuits involving inductivity represent impedance response equally well as the ones without inductivity, although the parameter values gained from the former correspond better to the proposed model of physicochemical changes during corrosion of investigated samples., Korozione karakteristike aluminijuma i aluminijuma na koji je naneta prevlaka oksida cerijuma sol-gel postupkom ispitivane su primenom spektroskopije elektrohemijske impedancije tokom izlaganja u vodenom rastvoru 3 mas. % NaCl. Dobijeni podaci analizirani su ekvivalentnim električnim kolima različite konfiguracije uz posebnu diskusiju koja se odnosi na pojavu induktivnog ponašanja. Ekvivalentna kola sa induktivnim elementom i bez njega podjednako dobro opisuju impedansne odgovore, mada vrednosti parametara kola u kojima je uključena induktivnost više odgovaraju predloženom modelu fizičko-hemijskih promena tokom procesa korozije ispitivanih sistema.", publisher = "Belgrade, Serbia : Engineering Society for Corrosion", journal = "Zaštita materijala", title = "Impedance characteristics of aluminum with sol-gel ceria protective coating during the exposure to chloride corrosion agent, Impedansni odgovor aluminijuma sa zaštitnom prevlakom oksida cerijuma tokom izlaganja hloridnoj korozionoj sredini", volume = "57", number = "2", pages = "305-313", doi = "10.5937/ZasMat1602305k" }
Košević, M., Panić, V., Bajat, J.,& Mišković-Stanković, V.. (2016). Impedance characteristics of aluminum with sol-gel ceria protective coating during the exposure to chloride corrosion agent. in Zaštita materijala Belgrade, Serbia : Engineering Society for Corrosion., 57(2), 305-313. https://doi.org/10.5937/ZasMat1602305k
Košević M, Panić V, Bajat J, Mišković-Stanković V. Impedance characteristics of aluminum with sol-gel ceria protective coating during the exposure to chloride corrosion agent. in Zaštita materijala. 2016;57(2):305-313. doi:10.5937/ZasMat1602305k .
Košević, Milica, Panić, Vladimir, Bajat, Jelena, Mišković-Stanković, Vesna, "Impedance characteristics of aluminum with sol-gel ceria protective coating during the exposure to chloride corrosion agent" in Zaštita materijala, 57, no. 2 (2016):305-313, https://doi.org/10.5937/ZasMat1602305k . .