Producción y caracterización de recubrimientos de Cu y algunas de sus aleaciones depositados por medio de sputtering con magnetrón desbalanceado

ilustraciones, graficas, fotografías, tablas

Autores:
Otálora Barrero, Diana María
Tipo de recurso:
Doctoral thesis
Fecha de publicación:
2020
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
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oai:repositorio.unal.edu.co:unal/79394
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/79394
https://repositorio.unal.edu.co/
Palabra clave:
720 - Arquitectura::721 - Materiales arquitectónicos y elementos estructurales
Peliculas delgadas
Recubrimientos nanoestructurados
Magnetron sputtering
Corrosión
Nanodureza
Resistencia al desgaste
Sputtering
Nanostructured coatings
Multilayers
Corrosion
Wear
Estructura molecular
Corrosión
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openAccess
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Atribución-NoComercial-SinDerivadas 4.0 Internacional
id UNACIONAL2_c33105267d48ee1cd787de99b17d710c
oai_identifier_str oai:repositorio.unal.edu.co:unal/79394
network_acronym_str UNACIONAL2
network_name_str Universidad Nacional de Colombia
repository_id_str
dc.title.spa.fl_str_mv Producción y caracterización de recubrimientos de Cu y algunas de sus aleaciones depositados por medio de sputtering con magnetrón desbalanceado
dc.title.translated.none.fl_str_mv Production and characterization of coatings of cu and some of its alloys deposited by means of sputtering with unbalanced magnetron
title Producción y caracterización de recubrimientos de Cu y algunas de sus aleaciones depositados por medio de sputtering con magnetrón desbalanceado
spellingShingle Producción y caracterización de recubrimientos de Cu y algunas de sus aleaciones depositados por medio de sputtering con magnetrón desbalanceado
720 - Arquitectura::721 - Materiales arquitectónicos y elementos estructurales
Peliculas delgadas
Recubrimientos nanoestructurados
Magnetron sputtering
Corrosión
Nanodureza
Resistencia al desgaste
Sputtering
Nanostructured coatings
Multilayers
Corrosion
Wear
Estructura molecular
Corrosión
title_short Producción y caracterización de recubrimientos de Cu y algunas de sus aleaciones depositados por medio de sputtering con magnetrón desbalanceado
title_full Producción y caracterización de recubrimientos de Cu y algunas de sus aleaciones depositados por medio de sputtering con magnetrón desbalanceado
title_fullStr Producción y caracterización de recubrimientos de Cu y algunas de sus aleaciones depositados por medio de sputtering con magnetrón desbalanceado
title_full_unstemmed Producción y caracterización de recubrimientos de Cu y algunas de sus aleaciones depositados por medio de sputtering con magnetrón desbalanceado
title_sort Producción y caracterización de recubrimientos de Cu y algunas de sus aleaciones depositados por medio de sputtering con magnetrón desbalanceado
dc.creator.fl_str_mv Otálora Barrero, Diana María
dc.contributor.advisor.none.fl_str_mv Olaya Florez, Jhon Jairo
Duarte Moller, José Alberto
dc.contributor.author.none.fl_str_mv Otálora Barrero, Diana María
dc.subject.ddc.spa.fl_str_mv 720 - Arquitectura::721 - Materiales arquitectónicos y elementos estructurales
topic 720 - Arquitectura::721 - Materiales arquitectónicos y elementos estructurales
Peliculas delgadas
Recubrimientos nanoestructurados
Magnetron sputtering
Corrosión
Nanodureza
Resistencia al desgaste
Sputtering
Nanostructured coatings
Multilayers
Corrosion
Wear
Estructura molecular
Corrosión
dc.subject.proposal.spa.fl_str_mv Peliculas delgadas
Recubrimientos nanoestructurados
Magnetron sputtering
Corrosión
Nanodureza
Resistencia al desgaste
dc.subject.proposal.eng.fl_str_mv Sputtering
Nanostructured coatings
Multilayers
Corrosion
Wear
dc.subject.unesco.none.fl_str_mv Estructura molecular
Corrosión
description ilustraciones, graficas, fotografías, tablas
publishDate 2020
dc.date.issued.none.fl_str_mv 2020-08-15
dc.date.accessioned.none.fl_str_mv 2021-04-09T16:26:01Z
dc.date.available.none.fl_str_mv 2021-04-09T16:26:01Z
dc.type.spa.fl_str_mv Trabajo de grado - Doctorado
dc.type.driver.spa.fl_str_mv info:eu-repo/semantics/doctoralThesis
dc.type.version.spa.fl_str_mv info:eu-repo/semantics/acceptedVersion
dc.type.coar.spa.fl_str_mv http://purl.org/coar/resource_type/c_db06
dc.type.content.spa.fl_str_mv Text
format http://purl.org/coar/resource_type/c_db06
status_str acceptedVersion
dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/79394
dc.identifier.instname.spa.fl_str_mv Universidad Nacional de Colombia
dc.identifier.reponame.spa.fl_str_mv Repositorio Institucional UN
dc.identifier.repourl.spa.fl_str_mv https://repositorio.unal.edu.co/
url https://repositorio.unal.edu.co/handle/unal/79394
https://repositorio.unal.edu.co/
identifier_str_mv Universidad Nacional de Colombia
Repositorio Institucional UN
dc.language.iso.spa.fl_str_mv spa
language spa
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dc.format.extent.spa.fl_str_mv 1 recurso en linea (204 paginas)
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dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia
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spelling Atribución-NoComercial-SinDerivadas 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Olaya Florez, Jhon Jairoef418804a571196f1445d7813c2dc7d8Duarte Moller, José Albertob686ea8a8536f5f5ce7da9000e54987dOtálora Barrero, Diana María38fd4d2833d4af827bc5d19c31a255de2021-04-09T16:26:01Z2021-04-09T16:26:01Z2020-08-15https://repositorio.unal.edu.co/handle/unal/79394Universidad Nacional de ColombiaRepositorio Institucional UNhttps://repositorio.unal.edu.co/ilustraciones, graficas, fotografías, tablasEn esta investigación se desarrollaron tres tipos de películas delgadas: Cu – Al, Cu – Al – N y multicapas de Cu – Al – N, donde cada capa se depositó bajo las mismas condiciones. Las películas se depositaron por medio de co-sputtering o pulverización catódica con magnetrón desbalanceado sobre sustratos de bronce fosforado. Se utilizaron dos blancos: el de cobre se conectó a una fuente RF y el de aluminio a una fuente DC pulsada. En este último, se varió la potencia en cuatro valores distintos con el objetivo de modificar el contenido de aluminio en los recubrimientos. Para el crecimiento de las películas Cu – Al – N y multicapas, se utilizó una atmósfera de Ar – N2, mientras que para las de Cu – Al se usó solo argón. Se evaluó la influencia de las condiciones de crecimiento, es decir, potencia de la fuente DC, atmósfera de trabajo y método de crecimiento (monocapa o multicapa) sobre la morfología, estructura, composición química, propiedades mecánicas, eléctricas, electroquímicas y tribológicas de los recubrimientos. La morfología y composición elemental se analizaron por medio de EDS – SEM, la estructura con difracción de rayos X y TEM, y XPS para identificar los enlaces entre elementos. Las propiedades tribológicas se evaluaron utilizando el método de ball on disk, las propiedades mecánicas con nanoindentación y con la técnica de las cuatro puntas o de Van der Pauw se analizó la resistividad de los recubrimientos. Finalmente, para la caracterización electroquímica se usaron las técnicas de polarización potenciodinámica y EIS. Las películas mostraron una morfología nodular, con un tamaño de grano que varía con la potencia de la fuente DC pulsada y el método de crecimiento. Las multicapas fueron las de menor tamaño de grano. La mayor dureza se presentó en las películas delgadas Cu – Al, al igual que la menor resistividad eléctrica, seguidas de los recubrimientos tipos Cu – Al – N. El mejor comportamiento electroquímico lo presentaron en general las multicapas, pero esto depende de las condiciones de deposición.In this research work three types of thin films were developed: Cu – Al, Cu – Al – N and multilayers of Cu – Al – N, in which each layer was deposited under the same conditions. The films were deposited by means of unbalanced magnetron cosputtering on substrates of phosphor bronze. Two targets were used: the coppertarget was connected to a RF source and the aluminum one to a DC pulsed source. In the last one, the power in four different values was varied in order to vary the content of aluminum in the coating. In the Cu – Al - N thin films and multilayers, an atmosphere of Ar – N2 was used, while for the Cu – Al ones, it only used argon. The influence of growing conditions was assessed, that is to say, DC power source, atmosphere of work and growing method (monolayer or multilayer), about the morphology, structure, chemical composition, mechanical properties, electrical, electrochemical and tribological of the coatings. The morphology and elemental composition was analyzed by means of EDS – SEM, the structure with X ray diffraction and TEM, and XPS in order to identify the bonds between elements. The tribological properties were assessed using the ball on disk method, the mechanical properties by nanoindentation, and the resistivity of coatings was analyzed with the four point probe or Van der Pauw technique. Finally, for the electrochemical characterization, the potentiodynamic polarization and EIS techniques were used. The morphology of the coatings turned out to be nodular, so that the size of the grain varies with the DC pulsed power source and the growing method. The multilayers had the smaller grain size. The highest hardness was presented in the Cu – Al thin films, as well as the lowest electrical resistivity, followed by the Cu – Al – N coatings. The best electrochemical behavior were presented by the multilayers in general, but this depends on the deposition conditions.Doctorado1 recurso en linea (204 paginas)application/pdfspaUniversidad Nacional de ColombiaBogotá - Ingeniería - Doctorado en Ingeniería - Ciencia y Tecnología de MaterialesFacultad de IngenieríaBogotáUniversidad Nacional de Colombia - Sede Bogotá720 - Arquitectura::721 - Materiales arquitectónicos y elementos estructuralesPeliculas delgadasRecubrimientos nanoestructuradosMagnetron sputteringCorrosiónNanodurezaResistencia al desgasteSputteringNanostructured coatingsMultilayersCorrosionWearEstructura molecularCorrosiónProducción y caracterización de recubrimientos de Cu y algunas de sus aleaciones depositados por medio de sputtering con magnetrón desbalanceadoProduction and characterization of coatings of cu and some of its alloys deposited by means of sputtering with unbalanced magnetronTrabajo de grado - Doctoradoinfo:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_db06Text[1] H. 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Louro, «Hard Coatings Based on Metal Nitrides, Metal Carbides and Nanocomposite Materials: PVD Process and Properties,» de Materials Surface Processing by Directed Energy Techniques, Elservier, 2006, pp. 537 - 572.[125] https://srdata.nist.gov/xps/EngElmSrchQuery.aspx?EType=PE&CSOpt=Retri_ex_dat&Elm=O, Nist.ORIGINALDOCUMENTO TESIS FINAL DIANA MARIA OTALORA BARRERO.pdfDOCUMENTO TESIS FINAL DIANA MARIA OTALORA BARRERO.pdfTesis de Doctorado en Ingeniería - Ciencia y tecnología de los Materialesapplication/pdf7866476https://repositorio.unal.edu.co/bitstream/unal/79394/1/DOCUMENTO%20TESIS%20FINAL%20DIANA%20MARIA%20OTALORA%20BARRERO.pdf06074ad1c0c408bbf2da2c5e17b8f7e7MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-83964https://repositorio.unal.edu.co/bitstream/unal/79394/2/license.txtcccfe52f796b7c63423298c2d3365fc6MD52CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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