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Gordillo Garcia, Nuria and Panizo Laíz, Miguel and Tejado Garrido, Elena María and Fernández-Martínez, I. and Rivera, A. and Pastor Caño, Jose Ignacio and Gómez de Castro, C. and Río, J. del and Perlado Martín, José Manuel and González Arrabal, Raquel (2014). Morphological and microstructural characterization of nanostructured pure a-phase W coatings on a wide thickness range. "Applied Surface Science", v. 316 ; pp. 1-8. ISSN 0169-4332. https://doi.org/10.1016/j.apsusc.2014.07.061.
Title: | Morphological and microstructural characterization of nanostructured pure a-phase W coatings on a wide thickness range |
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Author/s: |
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Item Type: | Article |
Título de Revista/Publicación: | Applied Surface Science |
Date: | October 2014 |
ISSN: | 0169-4332 |
Volume: | 316 |
Subjects: | |
Freetext Keywords: | Sputter deposition; Nanostructured tungsten; Micro-/macro-stresses; Nanoindentation |
Faculty: | E.T.S.I. Industriales (UPM) |
Department: | Ingeniería Energética |
Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
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Nanostructured tungsten (nanoW) coatings have been deposited by DC magnetron sputtering. First, the influence of the sputtering power on the adhesion of the coatings to the substrate was investigated by depositing coatings at powers varying from 30 up to 220 W. Non-delaminated coatings were achieved at powers ≤50 W. Second, the influence of coating thickness on the morphological, microstructural and mechanical properties was investigated for films deposited at 50 W with thicknesses varying from 30 nm up to ∼4.0 um. SEM images reveal that all the films are highly compact, consisting of nanometer sized columns that grow perpendicular to the substrate. XRD data evidence that films are monophasic, being made of pure a-phase. All coatings show compressive stress and low micro-strain. Nanoindentation tests show that coatings have a hardness higher than that reported for coarse grained W. No significant dependence of the previous properties on coating thickness was observed. Finally, the influence of the substrate on coatings properties was studied, by depositing a W coating at a power of 50 W on a commercial steel substrate: no significant dependence was found.
Type | Code | Acronym | Leader | Title |
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Madrid Regional Government | S-S2009/MAT-1585 | Unspecified | Unspecified | Unspecified |
Government of Spain | ENE2012-39787-C06-0XX | Unspecified | Unspecified | IONES LIGEROS Y RADIACION EN MATERIALES PARA FUSION |
Government of Spain | MAT2012-38541-C02-01 | Unspecified | Unspecified | DESARROLLO Y CARACTERIZACION MECANICA DE MATERIALES NANOESTRUCTURADOS PARA OPERACION BAJO CONDICIONES EXTREMAS PARA SISTEMAS DE GENERACION DE ENERGIA: COMPORTAMIENTO MECANICA |
Government of Spain | MAT2012-38541-C02-02 | Unspecified | Unspecified | Unspecified |
Item ID: | 52337 |
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DC Identifier: | https://oa.upm.es/52337/ |
OAI Identifier: | oai:oa.upm.es:52337 |
DOI: | 10.1016/j.apsusc.2014.07.061 |
Official URL: | https://www.sciencedirect.com/science/article/pii/S016943321401589X?via%3Dihub |
Deposited by: | Memoria Investigacion |
Deposited on: | 25 Sep 2018 15:38 |
Last Modified: | 04 Nov 2020 17:59 |