Structural and corrosion behaviour of stoichiometric and substoichiometric TiN thin films
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/1514 |
Resumo: | This paper reports the structural and electrochemical behaviour of TiN thin films prepared by d.c. reactive magnetron sputtering. x X-Ray diffraction showed the development of the hexagonal a-Ti phase, with strong w002x orientation, for low nitrogen contents. For nitrogen contents of 20 and 30 at.%, the ´-Ti N phase appears with w200x orientation. With further increasing the nitrogen 2 content, the d-TiN phase becomes dominant. Composition and the resulting changes in microstructure (crystalline phases and the lattice distortion induced by the growth conditions) are the two main parameters that seem to rule coating properties. Results of potentiodynamic polarisation tests showed that all films have a high corrosion resistance reflected by corrosion current densities below 0.7 mAycm . Also, electrochemical impedance spectroscopy tests corroborated the results obtained in the polarisation tests, 2 showing that films containing low percentages of nitrogen (less than 8%) reveal the best corrosion resistance. Further increases in nitrogen content lead to a decrease in the corrosion resistance. An exception to this behaviour was found for the film with 30 at.% N. This sample presents an excellent corrosion resistance, which in fact, increases with the immersion time. Higher nitrogen contents (52 and 55 at.%) promote a relative increase in the corrosion resistance when compared with 50 at.% films. This behaviour might be explained by the particular microstructural characteristics of the films. |
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Structural and corrosion behaviour of stoichiometric and substoichiometric TiN thin filmsTitanium nitrideStructural propertiesSputteringEISCorrosion resistanceScience & TechnologyThis paper reports the structural and electrochemical behaviour of TiN thin films prepared by d.c. reactive magnetron sputtering. x X-Ray diffraction showed the development of the hexagonal a-Ti phase, with strong w002x orientation, for low nitrogen contents. For nitrogen contents of 20 and 30 at.%, the ´-Ti N phase appears with w200x orientation. With further increasing the nitrogen 2 content, the d-TiN phase becomes dominant. Composition and the resulting changes in microstructure (crystalline phases and the lattice distortion induced by the growth conditions) are the two main parameters that seem to rule coating properties. Results of potentiodynamic polarisation tests showed that all films have a high corrosion resistance reflected by corrosion current densities below 0.7 mAycm . Also, electrochemical impedance spectroscopy tests corroborated the results obtained in the polarisation tests, 2 showing that films containing low percentages of nitrogen (less than 8%) reveal the best corrosion resistance. Further increases in nitrogen content lead to a decrease in the corrosion resistance. An exception to this behaviour was found for the film with 30 at.% N. This sample presents an excellent corrosion resistance, which in fact, increases with the immersion time. Higher nitrogen contents (52 and 55 at.%) promote a relative increase in the corrosion resistance when compared with 50 at.% films. This behaviour might be explained by the particular microstructural characteristics of the films.ElsevierUniversidade do MinhoRocha, L. A.Ariza, E.Ferreira, J. A.Vaz, F.Ribeiro, E.Rebouta, L.Alves, E.Ramos, A. R.Goudeau, Ph.Rivière, J. P.20042004-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/1514eng"Surface and coatings technology." ISSN 0257-8972. 180 -181 (2004) 158-163.0257-897210.1016/j.surfcoat.2003.10.059http://www.sciencedirect.com/science/journal/02578972info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:54:05Zoai:repositorium.sdum.uminho.pt:1822/1514Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:53:36.953019Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Structural and corrosion behaviour of stoichiometric and substoichiometric TiN thin films |
title |
Structural and corrosion behaviour of stoichiometric and substoichiometric TiN thin films |
spellingShingle |
Structural and corrosion behaviour of stoichiometric and substoichiometric TiN thin films Rocha, L. A. Titanium nitride Structural properties Sputtering EIS Corrosion resistance Science & Technology |
title_short |
Structural and corrosion behaviour of stoichiometric and substoichiometric TiN thin films |
title_full |
Structural and corrosion behaviour of stoichiometric and substoichiometric TiN thin films |
title_fullStr |
Structural and corrosion behaviour of stoichiometric and substoichiometric TiN thin films |
title_full_unstemmed |
Structural and corrosion behaviour of stoichiometric and substoichiometric TiN thin films |
title_sort |
Structural and corrosion behaviour of stoichiometric and substoichiometric TiN thin films |
author |
Rocha, L. A. |
author_facet |
Rocha, L. A. Ariza, E. Ferreira, J. A. Vaz, F. Ribeiro, E. Rebouta, L. Alves, E. Ramos, A. R. Goudeau, Ph. Rivière, J. P. |
author_role |
author |
author2 |
Ariza, E. Ferreira, J. A. Vaz, F. Ribeiro, E. Rebouta, L. Alves, E. Ramos, A. R. Goudeau, Ph. Rivière, J. P. |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Rocha, L. A. Ariza, E. Ferreira, J. A. Vaz, F. Ribeiro, E. Rebouta, L. Alves, E. Ramos, A. R. Goudeau, Ph. Rivière, J. P. |
dc.subject.por.fl_str_mv |
Titanium nitride Structural properties Sputtering EIS Corrosion resistance Science & Technology |
topic |
Titanium nitride Structural properties Sputtering EIS Corrosion resistance Science & Technology |
description |
This paper reports the structural and electrochemical behaviour of TiN thin films prepared by d.c. reactive magnetron sputtering. x X-Ray diffraction showed the development of the hexagonal a-Ti phase, with strong w002x orientation, for low nitrogen contents. For nitrogen contents of 20 and 30 at.%, the ´-Ti N phase appears with w200x orientation. With further increasing the nitrogen 2 content, the d-TiN phase becomes dominant. Composition and the resulting changes in microstructure (crystalline phases and the lattice distortion induced by the growth conditions) are the two main parameters that seem to rule coating properties. Results of potentiodynamic polarisation tests showed that all films have a high corrosion resistance reflected by corrosion current densities below 0.7 mAycm . Also, electrochemical impedance spectroscopy tests corroborated the results obtained in the polarisation tests, 2 showing that films containing low percentages of nitrogen (less than 8%) reveal the best corrosion resistance. Further increases in nitrogen content lead to a decrease in the corrosion resistance. An exception to this behaviour was found for the film with 30 at.% N. This sample presents an excellent corrosion resistance, which in fact, increases with the immersion time. Higher nitrogen contents (52 and 55 at.%) promote a relative increase in the corrosion resistance when compared with 50 at.% films. This behaviour might be explained by the particular microstructural characteristics of the films. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004 2004-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/1514 |
url |
http://hdl.handle.net/1822/1514 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
"Surface and coatings technology." ISSN 0257-8972. 180 -181 (2004) 158-163. 0257-8972 10.1016/j.surfcoat.2003.10.059 http://www.sciencedirect.com/science/journal/02578972 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133132762382336 |