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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
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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.

Information

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

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References

REFERENCES

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