Synthesis, characterization and optical behaviour of vapour grown nano-crystalline Al–Cr–Fe–Mo thin films

Valerie Brien (1, 2) , S. Kenzari (2) , P. Weisbecker (3) , Sébastien J. Weber (4) , F. Machizaud (5) , J.-M. Dubois (2)

1 IMN - Institut des Matériaux Jean Rouxel
2 IJL - Institut Jean Lamour
3 LCTS - Laboratoire des Composites Thermostructuraux
4 LPM - Laboratoire de physique des matériaux
5 LSG2M - Laboratoire de Science et Génie des Matériaux et de Métallurgie

Thermal evaporation process was employed in production of thin films of an Al-Cr-Fe-Mo alloy. Microstructural and chemical features were respectively evaluated by grazing X-ray diffraction, transmission electron microscopy and sputtered neutral mass spectroscopy. Solidification structures reveal a homogeneous nanosized (2-70 nm) granular morphology. Experimental synthesis parameters leading to films purely made of the known O 1 approximant phase have been defined. The other films were made of two phase particles, i.e. O 1 grains mixed with pure cubic aluminium grains. Optical reflectance of the O 1 film over the infrared and visible wavelength domains is presented.

Mots clés: Thin films; Vapour deposition; Scanning and transmission electron microscopy; X-ray diffraction

Domaines: Chimie inorganique; Matériaux; Optique [physics.optics]

Valerie Brien, S. Kenzari, P. Weisbecker, Sébastien J. Weber, F. Machizaud, et al.. Synthesis, characterization and optical behaviour of vapour grown nano-crystalline Al–Cr–Fe–Mo thin films. Journal of Alloys and Compounds, 2005, 391 (1-2), pp.206-211. ⟨10.1016/j.jallcom.2004.08.085⟩. ⟨hal-02882473⟩