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https://hdl.handle.net/10316/27933
Title: | Structural, chemical, optical and mechanical properties of Au doped Al-N sputtered coatings | Authors: | Figueiredo, N. M. Vaz, F. Cunha, L. Rodil, S. E. Cavaleiro, A. |
Keywords: | AlN-Au; Au clusters; SPR; Decorative | Issue Date: | 25-Sep-2014 | Publisher: | Elsevier | Citation: | FIGUEIREDO, N. M. [et. al] - Structural, chemical, optical and mechanical properties of Au doped Al-N sputtered coatings. "Surface and Coatings Technology". ISSN 0257-8972. Vol. 255 (2014) p. 130–139 | Serial title, monograph or event: | Surface and Coatings Technology | Volume: | 255 | Abstract: | This paper is focused on the structure, chemical composition, optical and mechanical properties of coatings consisting in an Alsingle bondN matrix incorporating different Au contents (up to 2.5 at.%). The Au was incorporated in the matrix atomically or in the form of very small nanoparticles (< 1 nm). With the increase in the Au content both the refractive index and the coefficient of extinction were increased. The AlN matrix presented a crystalline wurtzite phase, stable up to 1000 °C. With annealing at 400 °C the precipitation of XRD detectable Au nanoparticles was possible, originating SPR light absorption. The Alsingle bondN + Au coatings exhibited hardness values between 15 and 24 GPa, with no significant changes after the annealing treatments at low temperatures. These coatings are of interest to the decorative applications. | URI: | https://hdl.handle.net/10316/27933 | ISSN: | 0257-8972 | DOI: | 10.1016/j.surfcoat.2014.03.028 | Rights: | openAccess |
Appears in Collections: | I&D CEMMPRE - Artigos em Revistas Internacionais FCTUC Eng.Mecânica - Artigos em Revistas Internacionais |
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Structural, chemical, optical and mechanical properties.pdf | 1.37 MB | Adobe PDF | View/Open |
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