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Oxidation and Nitridation by Pulsed Laser Irradiation of Solids Immersed in Liquids

Published online by Cambridge University Press:  28 February 2011

S. Roorda ,
A. Polman ,
S. B. Ogale  and
F. W. Saris
S. Roorda
Affiliation:
FOM-Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, the Netherlands
A. Polman
Affiliation:
FOM-Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, the Netherlands
S. B. Ogale
Affiliation:
FOM-Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, the Netherlands
F. W. Saris
Affiliation:
FOM-Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, the Netherlands
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Abstract

Nitridation and oxidation of titanium is achieved by pulsed laser irradiation of Ti immersed in liquid ammonia or water. Rutherford Backscattering Spectrometry shows that large amounts of nitrogen and oxygen can be incorporated in the metal surface to a depth of several 1000 Å. X-ray diffraction shows evidence of compound formation. Scanning Electron Microscopy reveals that initial surface texture is smoothed, and that stress induced cracks and holes may appear. Irradiation of Fe and Si immersed in various liquids shows that modification depends on which combination of solid and liquid is used. Influence of processing parameters such as laser-energy density and number of laser pulses on compound formation has been investigated. The process is viewed as a reactive solute incorporation in the laser melted surface layer, followed by compound formation.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 75: Symposium B – Photon, Beam, and Plasma Stimulated Chemical Processes at Surfaces , 1986 , 297
Copyright
Copyright © Materials Research Society 1987

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