Oxidation Behavior of Copper at a Temperature below 300 °C and the Methodology for Passivation
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000100051 |
Resumo: | In this study, we investigate the oxidation behavior of copper at temperatures below 300 °C and its mechanism. A methodology to slow down the oxidation rate is then proposed based on the observed mechanism. The oxides formed after oxidation at low temperatures have fine crystal sizes; the rate constants reach 2×10-15 m2/s and 6×10-14 m2/s at 200 °C and 300 °C, respectively. A passivation treatment at 600 °C in nitrogen produces a thin oxide layer composed of relatively large Cu2O crystals. The presence of such a layer slows down the oxidation rate constants by an order of magnitude. This study demonstrates that the oxidation of copper at low temperatures is controlled by the grain boundary diffusion. Increasing the crystal size in the surface oxide reduces the oxidation rate significantly. |
id |
ABMABCABPOL-1_1932243a3b24e8bbd28ff837e86dd05d |
---|---|
oai_identifier_str |
oai:scielo:S1516-14392016000100051 |
network_acronym_str |
ABMABCABPOL-1 |
network_name_str |
Materials research (São Carlos. Online) |
repository_id_str |
|
spelling |
Oxidation Behavior of Copper at a Temperature below 300 °C and the Methodology for PassivationCopperPassivationOxidationOxidation kineticsIn this study, we investigate the oxidation behavior of copper at temperatures below 300 °C and its mechanism. A methodology to slow down the oxidation rate is then proposed based on the observed mechanism. The oxides formed after oxidation at low temperatures have fine crystal sizes; the rate constants reach 2×10-15 m2/s and 6×10-14 m2/s at 200 °C and 300 °C, respectively. A passivation treatment at 600 °C in nitrogen produces a thin oxide layer composed of relatively large Cu2O crystals. The presence of such a layer slows down the oxidation rate constants by an order of magnitude. This study demonstrates that the oxidation of copper at low temperatures is controlled by the grain boundary diffusion. Increasing the crystal size in the surface oxide reduces the oxidation rate significantly.ABM, ABC, ABPol2016-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000100051Materials Research v.19 n.1 2016reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-MR-2015-0139info:eu-repo/semantics/openAccessLee,Shao-KuanHsu,Hsiu-ChingTuan,Wei-Hsingeng2016-03-29T00:00:00Zoai:scielo:S1516-14392016000100051Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2016-03-29T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Oxidation Behavior of Copper at a Temperature below 300 °C and the Methodology for Passivation |
title |
Oxidation Behavior of Copper at a Temperature below 300 °C and the Methodology for Passivation |
spellingShingle |
Oxidation Behavior of Copper at a Temperature below 300 °C and the Methodology for Passivation Lee,Shao-Kuan Copper Passivation Oxidation Oxidation kinetics |
title_short |
Oxidation Behavior of Copper at a Temperature below 300 °C and the Methodology for Passivation |
title_full |
Oxidation Behavior of Copper at a Temperature below 300 °C and the Methodology for Passivation |
title_fullStr |
Oxidation Behavior of Copper at a Temperature below 300 °C and the Methodology for Passivation |
title_full_unstemmed |
Oxidation Behavior of Copper at a Temperature below 300 °C and the Methodology for Passivation |
title_sort |
Oxidation Behavior of Copper at a Temperature below 300 °C and the Methodology for Passivation |
author |
Lee,Shao-Kuan |
author_facet |
Lee,Shao-Kuan Hsu,Hsiu-Ching Tuan,Wei-Hsing |
author_role |
author |
author2 |
Hsu,Hsiu-Ching Tuan,Wei-Hsing |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Lee,Shao-Kuan Hsu,Hsiu-Ching Tuan,Wei-Hsing |
dc.subject.por.fl_str_mv |
Copper Passivation Oxidation Oxidation kinetics |
topic |
Copper Passivation Oxidation Oxidation kinetics |
description |
In this study, we investigate the oxidation behavior of copper at temperatures below 300 °C and its mechanism. A methodology to slow down the oxidation rate is then proposed based on the observed mechanism. The oxides formed after oxidation at low temperatures have fine crystal sizes; the rate constants reach 2×10-15 m2/s and 6×10-14 m2/s at 200 °C and 300 °C, respectively. A passivation treatment at 600 °C in nitrogen produces a thin oxide layer composed of relatively large Cu2O crystals. The presence of such a layer slows down the oxidation rate constants by an order of magnitude. This study demonstrates that the oxidation of copper at low temperatures is controlled by the grain boundary diffusion. Increasing the crystal size in the surface oxide reduces the oxidation rate significantly. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000100051 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000100051 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1980-5373-MR-2015-0139 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.19 n.1 2016 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212667587821568 |