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Low Cost Get-Away-Special (GAS) Furnace

Published online by Cambridge University Press:  26 February 2011

Glon D. Turner
Affiliation:
Department of Engineering Mechanics, United States Air Force Academy, CO 80840–5701
Henry C. degroli
Affiliation:
Metals Science Branch, NIASA Lewis Research Center, Cleveland, OH 44135.
Fred A. Antoon
Affiliation:
Department of Engineering Mechanics, United States Air Force Academy, CO 80840–5701
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Abstract

A simple and inexpensive space shuttle experimental apparatus to conduct microgravity melting and solidification is presented. A Get-Away-Special (GAS) space furnace was initially developed as a student design project at the United States Air Force Academy and further refined at the NASA Lewis Research Center. The experiment package consists of a melting chamber, battery power system, temperature data recording systems, and electronic controller. The melting chamber is a thin-walled tube wrapped by heating resistance wire. Thermocouples are used to record the specimen thermal history. Power is supplied by two volt batteries wired to produce 360 watts. The millivolt output of the thermocouples is amplified, cold-junction compensated, and converted to a frequency which is then recorded on an off-the-shelf cassette stereo tape recorder. A back up data recording system which digitizes the amplified signal and records the data on EEPROMs (electrically erasable programmable read-only memory) has also been included. This experimental device demonstrates that basic science research can be kept simple and inexpensive.

Type
Research Article
Copyright
Copyright © Materials Research Society 1987

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References

1. Get-Away-Special Payloads, Safety Manual, NASA Goddard Space Flight Center, 1983.Google Scholar
2. Get-Away-Special (GAS) Small Self-Contained Payloads, Experimental Handbook, The GAS Team, NASA Goddard Space Flight Center, Special Payloads Division, 1985.Google Scholar
3. Microgravity Science and Applications, Experiment Apparatus and Facilities, Fountain, James A., Marshall Space Flight Center.Google Scholar