Hostname: page-component-84b7d79bbc-dwq4g Total loading time: 0 Render date: 2024-07-30T20:50:30.917Z Has data issue: false hasContentIssue false
  • English
  • Français

Laser-Induced Reactive Evaporation and Condensation

Published online by Cambridge University Press:  25 February 2011

Gan-Moog Chow  and
Peter R. Struti
Gan-Moog Chow
Affiliation:
Institute of Materials Science, Box U-136, the University of Connecticut, Storrs, CT 06269
Peter R. Struti
Affiliation:
Institute of Materials Science, Box U-136, the University of Connecticut, Storrs, CT 06269
Get access

Abstract

A study of laser-induced reactive evaporation-condensation is presented. This considers coevaporation of metallic, and non-metallic species, by a cw carbon dioxide laser beam, within a reducing environment (98.5% hydrogen, 1.5% methane). A heated W filament placed in proximity of the laser beam-substrate interaction zone produces W for deposition via chemical vapor transport reactions. Composite thin films of a W matrix containing amorphous silica fibers have been deposited on nickel alloy substrates. These films form at rates of about 1 micron/sec, and are found to be adherent to the substrates. The diameter of the fibers is between 25 nm and 120 nm, depending on the interaction time. Various analytical techniques have been employed to characterize as-synthesized layers. Mechanisms of this process are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 129: Symposium B – Laser and Particle-Beam Modification of Chemical Processes on Surfaces , 1988 , 393
Copyright
Copyright © Materials Research Society 1989

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Boyd, I. W., Laser Processing of Thin Films and Microstructures, (Springer-Verlag Berlin Heidelberg New York, 1987).Google Scholar
2. Chow, G. M., PhD dissertation, the University of Connecticut, Dec. 1988.Google Scholar
3. Chow, G. M., and Strutt, P. R., Symposium Proceedings “Multicomponent Ultrafine Microstructures”, Vol. 132, p61, Materials Research Society.Google Scholar
4. Chow, G. M., Klemens, P. G., and Strutt, P. R., to appear in Journal of Applied Physics.Google Scholar
5. Schaffer, H. (translated by Frankfort, H.), Chemical Transport Reactions, (Academic Press, New York 1964).Google Scholar
6. Alterthum, H., Z. Physik. Chem., 110, 1, 13 (1924).Google Scholar
7. Kennard, E. H., Kinetic Theory of Gases, (McGraw Hill, New York and London, 1938).Google Scholar
8. Peebles, H. C., and Willamson, R. L., Proceedings of International Conference on Laser Materials Processing, (Osaka, Japan,1987).Google Scholar