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Analysis of SPAR 8 single-axis levitation experimentThe melting and resolidification of SPAR 8 payload melting and resolidification of a glass specimen from the in a containerless condition and the retrieval and examination of the specimen from the. The absence of container contact was assured by use of a single-axis acoustic levitation system. However, the sample contacted a wire cage after being held without container contact by the acoustic field for only approximately 87 seconds. At this time, the sample was still molten and, therefore, flowed aroung the wire and continued to adhere to it. An analysis of why the sample did not remain levitated free of container contact is presented. The experiment is described, and experimental observations are discussed and analyzed.
Document ID
19820004220
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Rush, J. E. (Alabama Univ. Huntsville, United States)
Schafer, C. F. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Holland, R. L. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 4, 2013
Publication Date
September 1, 1981
Subject Category
Astronautics (General)
Report/Patent Number
NASA-TM-82447
Accession Number
82N12093
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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