Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-25T15:28:34.034Z Has data issue: false hasContentIssue false
  • English
  • Français

Atomic Fluorescence Study of High Temperature Aerodynamic Levitation

Published online by Cambridge University Press:  15 February 2011

Paul C. Nordine ,
Robert A. Schiffman  and
D. S. Sethi
Paul C. Nordine
Affiliation:
Department of Chemical Engineering, Yale University, New Haven, CT 06520
Robert A. Schiffman
Affiliation:
Department of Chemical Engineering, Yale University, New Haven, CT 06520
D. S. Sethi
Affiliation:
Department of Chemical Engineering, Yale University, New Haven, CT 06520 Department of Chemistry, University of Bridgeport, Bridgeport, CT
Get access

Abstract

Ultraviolet laser induced atomic fluorescence has been used to characterize supersonic jet aerodynamic levitation experiments. The levitated specimen was a 0.4 cm sapphire sphere that was separately heated at temperatures up to 2327K by an infrared laser. The supersonic jet expansion and thermal gradients in the specimen wake were studied by measuring spatial variations in the concentration of atomic Hg added to the levitating argon gas stream. Further applications of atomic fluorescence in containerless experiments, such as ideal gas fluorescence thermometry and containerless process control are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 9 , 1981 , 43
Copyright
Copyright © Materials Research Society 1982

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.Winborne, D. A., Nordine, P. C., Rosner, D. E. and Marley, N. F., Met. Trans. 7B, 711 (1976).Google Scholar
2.Rosner, D. E. and Nordine, P. C., in Fisher, R. M. et al. , eds, Physical Chemistry in Metallurgy, Proceedings of the Darken Conference, U. S. Steel Monroeville,Pa.,1976, pp. 496–499.Google Scholar
3.Nordine, P. C. and Atkins, R. M., Rev. Sci. Instrum. (submitted).Google Scholar
4.Fernandez de la Mora, J., Mercer, J., Rosner, D. E. and Fenn, J. B., Rarefied Gas Dynamics, Progress in Astronautics and Aeronautics, Vol. 74, ed. by Fisher, Sam S., AIAA, New York, 1981, pp.617–626.Google Scholar
5.Rosner, D. E., PhysicoChemical Hydrodynamics, 1, 159 (1980).Google Scholar
6.Nordine, P. C., Lee, E. H. and Hurd, J. L., Rev. int. hautes Temper. Refract., 17, 165 (1980).Google Scholar