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Mixing of two liquid metals on spar payload due to spin-up and spin-downUnexpected results from SPAR experiments, directed at obtaining fine dispersions of metal systems that in a 1-g environment tend to segregate very rapidly, were considered. The physical processes occurring in fluid samples, such as the SPAR samples before solidification, were shown to be insufficient to produce a well mixed liquid by the time solidification was initiated. This would result in solidified samples with the type of segregation noted in the SPAR samples. Experimental evidence and analytical arguments are presented.
Document ID
19780005147
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Schafer, C. F. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1977
Subject Category
Astronautics (General)
Report/Patent Number
NASA-TM-78144
Accession Number
78N13090
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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