Artículo
Microstructural characterization of hydrophobic Ti1−xAlxN coatings with moth-eye-like surface morphology
Autor/es | Fortio Godinho, Vanda Cristina
López Santos, Carmen Rojas Ruiz, Teresa Cristina Philippon, D. Jiménez de Haro, María del Carmen Lucas, S. Fernández Camacho, Asunción |
Fecha de publicación | 2012-09-25 |
Fecha de depósito | 2018-05-09 |
Publicado en |
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Resumen | Ti1−xAlxN thin films with different Al content were deposited by magnetron sputtering. The combination of electron energy loss spectroscopy (EELS) and energy dispersive spectroscopy (EDS) was used to evaluate the composition ... Ti1−xAlxN thin films with different Al content were deposited by magnetron sputtering. The combination of electron energy loss spectroscopy (EELS) and energy dispersive spectroscopy (EDS) was used to evaluate the composition of the coatings. The effect of Al content on the morphology and properties of the coatings was investigated. High resolution electron microscopy and related techniques revealed the formation of a pillared moth-eye-like nanostructure with variable size and distribution of meso- and nano-columns and different degree of open porosity that depends on the Al content on the coating. For low Al content (x ≤ 0.21) c-(Ti,Al)N highly porous columns ending in a sharp pyramidal shape present low reflectivity and high hydrophobicity. While the precipitation of h-AlN phase at the column boundaries for x = 0.71 suppresses the c-(Ti,Al)N columnar growth and produces a smother surface, with higher reflectivity and less hydrophobic character. |
Agencias financiadoras | Junta de Andalucía Ministerio de Ciencia e Innovación (MICIN). España |
Identificador del proyecto | 201060I41
201060E102 |
Cita | Fortio Godinho, V.C., López Santos, C., Rojas Ruiz, T.C., Philippon, D., Jiménez de Haro, M.d.C., Lucas, S. y Fernández Camacho, A. (2012). Microstructural characterization of hydrophobic Ti1−xAlxN coatings with moth-eye-like surface morphology. Journal of Alloys and Compounds, 536 (S1), S398-S406. |
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