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Acoustic levitation technique for containerless processing at high temperatures in spaceHigh temperature processing of a small specimen without a container has been demonstrated in a set of experiments using an acoustic levitation furnace in the microgravity of space. This processing technique includes the positioning, heating, melting, cooling, and solidification of a material supported without physical contact with container or other surface. The specimen is supported in a potential energy well, created by an acoustic field, which is sufficiently strong to position the specimen in the microgravity environment of space. This containerless processing apparatus has been successfully tested on the Space Shuttle during the STS-61A mission. In that experiment, three samples wer successfully levitated and processed at temperatures from 600 to 1500 C. Experiment data and results are presented.
Document ID
19890029730
Document Type
Reprint (Version printed in journal)
Authors
Rey, Charles A. (Intersonics, Inc. Northbrook, IL, United States)
Merkley, Dennis R. (Intersonics, Inc. Northbrook, IL, United States)
Hammarlund, Gregory R. (Intersonics, Inc. Northbrook, IL, United States)
Danley, Thomas J. (Intersonics, Inc. Northbrook, IL, United States)
Date Acquired
August 14, 2013
Publication Date
November 1, 1988
Publication Information
Publication: Metallurgical Transactions A - Physical Metallurgy and Materials Science
Volume: 19A
ISSN: 0360-2133
Subject Category
MATERIALS PROCESSING
Funding Number(s)
CONTRACT_GRANT: NAS8-33742
Distribution Limits
Public
Copyright
Other