Formation of diffusion-hindering interlayers in metals in contact by dedicated thermal treatment by D. C. Meyer, A. Gorbunov, W. Pompe, and A. A. Levin

Crystal Research and Technology

Cryst. Res. Technol. 40, 125 (2005) - Abstract -

Formation of diffusion-hindering interlayers in metals in contact by dedicated thermal treatment

D. C. Meyer, A. Gorbunov*, W. Pompe*, and A. A. Levin

Technische Universität Dresden, Institut für Strukturphysik, 01062 Dresden, Germany
*Technische Universität Dresden, Institut für Werkstoffwissenschaft, 01062 Dresden, Germany

Keywords	iron, aluminium, annealing, diffusion, barrier layer, Wide-angle X-ray scattering (WAXS), X-ray reflectometry (XRR)
PACS	68.35.-p, 68.55.-a, 81.05.Bx, 81.07.-b, 81.40.Gh, 83.60.-a
DOI	10.1002/crat.200410315

Thermal evolution of the structure of Fe/Al multilayers (MLs) with nominal composition 5*(5 nm Al / 5 nm Fe) prepared by crossed-beam pulsed laser deposition is studied by wide-angle X-ray scattering and X-ray reflectometry after different temperature-time procedures of thermal treatments under high-vacuum conditions. In comparison to direct thermal annealing at temperatures of 250 °C and 275 °C, respectively, which results in nearly complete mixing of the MLs and formation of the FeAl intermetallic compound, quite different behaviour was found after dedicated thermal pretreatment. Annealing at successive growing temperatures before final annealing at temperatures mentioned, resulted in conservation of pronounced multilayer structure. From the results it is generalised, that also in the case of ML systems, the tendency of mixing a dedicated tuning of interface characteristics by thermal treatment allows for formation of diffusion-hindering interlayers.

The full text of this paper in pdf-Format:

If you have come directly to this page, click this symbol

to go to the CRT homepage.