Impedance studies of the passive film on aluminium
Impedance spectroscopy has been used to study the characteristics of aluminium in 0.10 M NaCl solution at potentials below the pitting potential (−1.50 V SCE to −0.70 V SCE). Multiple capacitive (or pseudocapacitive) impedance features have been identified and analyzed over this range of potentials....
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| Veröffentlicht in: | Corrosion science 2005-12, Vol.47 (12), p.3187-3201 |
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| container_title | Corrosion science |
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| creator | Martin, F.J. Cheek, G.T. O’Grady, W.E. Natishan, P.M. |
| description | Impedance spectroscopy has been used to study the characteristics of aluminium in 0.10
M NaCl solution at potentials below the pitting potential (−1.50
V
SCE to −0.70
V
SCE). Multiple capacitive (or pseudocapacitive) impedance features have been identified and analyzed over this range of potentials. Higher frequency resistances have been compared with surface analytical data, establishing a correlation between higher frequency impedances and the concentration of chloride in the passive film. The relationship shows that both charging resistance and chloride concentration reach a maximum immediately prior to passive film breakdown. At the onset of metastable pitting, both the impedance and chloride concentration decrease from the measured maxima. In contrast to X-ray photoelectron spectroscopy studies, the impedance results do not reveal oxide thinning prior to the onset of metastable pitting. Modelling from impedance data indicates that the thickness of the oxide layer sampled by impedance is much thinner than the oxide measured with surface analytical techniques, suggesting that the impedance method senses only the space charge layer in the oxide and not the total film thickness. |
| doi_str_mv | 10.1016/j.corsci.2005.05.058 |
| format | Article |
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M NaCl solution at potentials below the pitting potential (−1.50
V
SCE to −0.70
V
SCE). Multiple capacitive (or pseudocapacitive) impedance features have been identified and analyzed over this range of potentials. Higher frequency resistances have been compared with surface analytical data, establishing a correlation between higher frequency impedances and the concentration of chloride in the passive film. The relationship shows that both charging resistance and chloride concentration reach a maximum immediately prior to passive film breakdown. At the onset of metastable pitting, both the impedance and chloride concentration decrease from the measured maxima. In contrast to X-ray photoelectron spectroscopy studies, the impedance results do not reveal oxide thinning prior to the onset of metastable pitting. Modelling from impedance data indicates that the thickness of the oxide layer sampled by impedance is much thinner than the oxide measured with surface analytical techniques, suggesting that the impedance method senses only the space charge layer in the oxide and not the total film thickness.</description><identifier>ISSN: 0010-938X</identifier><identifier>EISSN: 1879-0496</identifier><identifier>DOI: 10.1016/j.corsci.2005.05.058</identifier><identifier>CODEN: CRRSAA</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Aluminium ; Applied sciences ; Corrosion ; Corrosion environments ; Corrosion mechanisms ; Exact sciences and technology ; Impedance ; Metals. Metallurgy ; Oxide film ; Passivity ; Pitting corrosion ; Space charge layer</subject><ispartof>Corrosion science, 2005-12, Vol.47 (12), p.3187-3201</ispartof><rights>2005</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c367t-134753d892b06527e8382a29a7bc9f1cf1b40839736e700dbf9451ef6038e8f83</citedby><cites>FETCH-LOGICAL-c367t-134753d892b06527e8382a29a7bc9f1cf1b40839736e700dbf9451ef6038e8f83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0010938X05002313$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17255248$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Martin, F.J.</creatorcontrib><creatorcontrib>Cheek, G.T.</creatorcontrib><creatorcontrib>O’Grady, W.E.</creatorcontrib><creatorcontrib>Natishan, P.M.</creatorcontrib><title>Impedance studies of the passive film on aluminium</title><title>Corrosion science</title><description>Impedance spectroscopy has been used to study the characteristics of aluminium in 0.10
M NaCl solution at potentials below the pitting potential (−1.50
V
SCE to −0.70
V
SCE). Multiple capacitive (or pseudocapacitive) impedance features have been identified and analyzed over this range of potentials. Higher frequency resistances have been compared with surface analytical data, establishing a correlation between higher frequency impedances and the concentration of chloride in the passive film. The relationship shows that both charging resistance and chloride concentration reach a maximum immediately prior to passive film breakdown. At the onset of metastable pitting, both the impedance and chloride concentration decrease from the measured maxima. In contrast to X-ray photoelectron spectroscopy studies, the impedance results do not reveal oxide thinning prior to the onset of metastable pitting. Modelling from impedance data indicates that the thickness of the oxide layer sampled by impedance is much thinner than the oxide measured with surface analytical techniques, suggesting that the impedance method senses only the space charge layer in the oxide and not the total film thickness.</description><subject>Aluminium</subject><subject>Applied sciences</subject><subject>Corrosion</subject><subject>Corrosion environments</subject><subject>Corrosion mechanisms</subject><subject>Exact sciences and technology</subject><subject>Impedance</subject><subject>Metals. Metallurgy</subject><subject>Oxide film</subject><subject>Passivity</subject><subject>Pitting corrosion</subject><subject>Space charge layer</subject><issn>0010-938X</issn><issn>1879-0496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LxDAQhoMouK7-Aw-96K11kvQjuQiy-AULXhS8hTSdYJZ-mbQL_nvb7YI3YWBgeOYd5iHkmkJCgeZ3u8R0PhiXMIAsOZQ4ISsqChlDKvNTsgKgEEsuPs_JRQg7AGDTZEXYa9NjpVuDURjGymGIOhsNXxj1OgS3x8i6uom6NtL12LjWjc0lObO6Dnh17Gvy8fT4vnmJt2_Pr5uHbWx4Xgwx5WmR8UpIVkKesQIFF0wzqYvSSEuNpWUKgsuC51gAVKWVaUbR5sAFCiv4mtwuub3vvkcMg2pcMFjXusVuDIqJjErO6QSmC2h8F4JHq3rvGu1_FAU1C1I7tQhSsyB1qDn_5pivg9G19ZMFF_52C5ZlLJ25-4XD6dm9Q6-mJJyMVc6jGVTVuf8P_QJ9VXwS</recordid><startdate>20051201</startdate><enddate>20051201</enddate><creator>Martin, F.J.</creator><creator>Cheek, G.T.</creator><creator>O’Grady, W.E.</creator><creator>Natishan, P.M.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7SE</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope></search><sort><creationdate>20051201</creationdate><title>Impedance studies of the passive film on aluminium</title><author>Martin, F.J. ; Cheek, G.T. ; O’Grady, W.E. ; Natishan, P.M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c367t-134753d892b06527e8382a29a7bc9f1cf1b40839736e700dbf9451ef6038e8f83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Aluminium</topic><topic>Applied sciences</topic><topic>Corrosion</topic><topic>Corrosion environments</topic><topic>Corrosion mechanisms</topic><topic>Exact sciences and technology</topic><topic>Impedance</topic><topic>Metals. Metallurgy</topic><topic>Oxide film</topic><topic>Passivity</topic><topic>Pitting corrosion</topic><topic>Space charge layer</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Martin, F.J.</creatorcontrib><creatorcontrib>Cheek, G.T.</creatorcontrib><creatorcontrib>O’Grady, W.E.</creatorcontrib><creatorcontrib>Natishan, P.M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Corrosion Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Corrosion science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Martin, F.J.</au><au>Cheek, G.T.</au><au>O’Grady, W.E.</au><au>Natishan, P.M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Impedance studies of the passive film on aluminium</atitle><jtitle>Corrosion science</jtitle><date>2005-12-01</date><risdate>2005</risdate><volume>47</volume><issue>12</issue><spage>3187</spage><epage>3201</epage><pages>3187-3201</pages><issn>0010-938X</issn><eissn>1879-0496</eissn><coden>CRRSAA</coden><abstract>Impedance spectroscopy has been used to study the characteristics of aluminium in 0.10
M NaCl solution at potentials below the pitting potential (−1.50
V
SCE to −0.70
V
SCE). Multiple capacitive (or pseudocapacitive) impedance features have been identified and analyzed over this range of potentials. Higher frequency resistances have been compared with surface analytical data, establishing a correlation between higher frequency impedances and the concentration of chloride in the passive film. The relationship shows that both charging resistance and chloride concentration reach a maximum immediately prior to passive film breakdown. At the onset of metastable pitting, both the impedance and chloride concentration decrease from the measured maxima. In contrast to X-ray photoelectron spectroscopy studies, the impedance results do not reveal oxide thinning prior to the onset of metastable pitting. Modelling from impedance data indicates that the thickness of the oxide layer sampled by impedance is much thinner than the oxide measured with surface analytical techniques, suggesting that the impedance method senses only the space charge layer in the oxide and not the total film thickness.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.corsci.2005.05.058</doi><tpages>15</tpages></addata></record> |
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| issn | 0010-938X 1879-0496 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Aluminium Applied sciences Corrosion Corrosion environments Corrosion mechanisms Exact sciences and technology Impedance Metals. Metallurgy Oxide film Passivity Pitting corrosion Space charge layer |
| title | Impedance studies of the passive film on aluminium |
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