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Macroscopic 2D Design of Micro/Nano Grain Architectures by Laser Interference Metallurgy

Published online by Cambridge University Press:  01 February 2011

Frank Muecklich ,
Carsten Gachot ,
Rodolphe Catrin ,
Ulrich Schmid  and
Andrés Lasagni
Frank Muecklich
Affiliation:
Georgia Institute of Technology, Woodruff School of Mechanical Engineering, 801 Ferst Drive, Atlanta, GA 30332-0405, USA, Atlanta, GA, 30363, United States, 404 385 3407
Carsten Gachot
Affiliation:
[email protected], Saarland University, Functional Materials, Saarbruecken, N/A, Germany
Rodolphe Catrin
Affiliation:
[email protected], Saarland University, Functional Materials, Saarbruecken, N/A, Germany
Ulrich Schmid
Affiliation:
[email protected], Saarland University, Chair of Micromechanics, Microfluidics/Microactuators, Saarbruecken, N/A, Germany
Andrés Lasagni
Affiliation:
[email protected], Georgia Institute of Technology, W. Woodruff School of Mechanical Engineering, Atlanta, GA, 30332-0405, United States
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Abstract

Tailoring of micro/nano structures and surface functionalization are key goals in surface processing of materials. A new technology for a unique geometric precise 2D micro/nano design of grain architectures is presented. By means of super lateral grain growth crystalline lattice patterns such as line-, dot- and cross-like patterns were generated. The grain dimensions may be selected between a few nanometers and about 10 micrometers. The phase and grain formation was characterized by Electron Backscatter Diffraction with regard to orientation distribution and texture formation. Furthermore, dynamic aspects of this laser induced recrystallization process are studied, such as the heat transport in the films, comparing the vertical with the lateral solidification velocities by two-dimensional finite element method (FEM) simulations. Finally, the mechanical properties of the tailored thin films have been determined using nanoindentation experiments.

Keywords

lasernanostructuregrain size
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1059: Symposium KK – Nanoscale Pattern Formation , 2007 , 1059-KK04-06
Copyright
Copyright © Materials Research Society 2008

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References

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