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Air Jet Levitation Furnace System for Observing Glass Microspheres During Heating and Melting

Published online by Cambridge University Press:  15 February 2011

Edwin C. Ethridge
Affiliation:
Space Sciences Laboratory, ES74, Marshall Space Flight Center, Huntsville, AL;
Stanley L. Dunn
Affiliation:
Bjorksten Research Laboratory, P. O. Box 9444, Madison, WI 53715
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Abstract

A collimated hole structure air jet levitation system has been developed which can be used to levitate hollow glass microspheres used in inertial confinement fusion studies. An ellipsoidal furnace has been added to the system to provide a heating source. A video camera and a 16 mm movie camera connected to a microsphere system provide real time observation as well as permanent documentation of the experiments. Microspheres have been levitated at temperatures over 1400°C for over 10 minutes at a time.

Type
Research Article
Copyright
Copyright © Materials Research Society 1982

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References

REFERENCES

1.Wang, Taylor G. (1980) “Gravitational Effects on Target Fabrication,” presented at the Topical Meeting on Inertial Confinement Fusion,Feb. 26–28, 1980,San Diego, California.Google Scholar
2.Whymark, R. R. (1975) “Acoustic Field Positioning for Containerless Processing,” Ultrasonics Nov. 1975: 253–261.Google Scholar
3.Ashkin, A. and Dziedzic, J. M. (1971) “Optical Levitation by Radiation Pressure,” App. Ph. Letter. 19: 283285.Google Scholar
4.Ashkin, A. and Dziedzic, J. M. (1975) “Optical Levitation of Liquid Droplets by Radiation Pressure,” Science 187: 10731075.Google Scholar
5.Farnell, G. A. and Waldie, B. (1973) “A Levitation Technique for Exposing a Single Particle or Group of Particles to High Temperature Gases,” J. Phys. E., Sci. Instr. 6: 137138.Google Scholar
6.Fromm, E. and Jehn, H. (1965) Brit. J. Appl. Phys. 16: 653.Google Scholar
7.Winborne, David A., Nordine, Paul C., Rosner, Daniel E. and Marley, Neil F. (1976) “Aerodynamic Levitation Technique for Containerless High Temperature Studies on Liquid and Solid Samples,” Metall. Trans. 7B: 711713.Google Scholar
8.Hoffer, Thomas E. and Mallen, Steven C. (1968) “A Vertical Wind Tunnel for Small Droplet Studies,” J. App. Meteor. 7: 290292.Google Scholar
9.Stow, C. D. and Woodward, M. C. (1974) “Evaluation of a Simple Open Circuit Wind Tunnel for Large Droplet Support,” J. Geophys. Res. 79: 44604466.Google Scholar
10.Pruppacher, H. R. and Schlamp, R. J. (1975) “A Wind Tunnel Investigation on Ice Multiplication by Freezing of Waterdrops Falling at Terminal Velocity in Air,” J. Geophysical Res. Jan. 20, 1975, p. 380386.10.1029/JC080i003p00380Google Scholar
11.Dunn, Stanley (1976) “Glass Microballoon Concentering,” Contract No. L86–29123–1, Final Report to Los Alamos Scientific Labs.Google Scholar
12.Dunn, Stanley (1977), “Concentering of Glass Microballoon Contract No. LP6–62129–1, Final Report to Los Alamos Scientific Labs.Google Scholar
13.Dunn, Stanley (1980), “The Upgrading of Glass Microballoons” Final Report NASA Contract NAS8–33513.Google Scholar
14.Nolen, RobertRay, Downs and Matt, Ebner, (198) “Glass Shell Manufacturing in Space.” Final Report, NASA Contract NAS8–33103.Google Scholar