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Preparation And Analysis Of Specimens Of Ablative MaterialsProcedure for chemical analysis of specimens of silicone-based ablative thermal-insulation materials SLA-561 and MA25 involves acid digestion of specimens to prepare them for analysis by inductively-coupled-plasma/atomic-emission spectroscopy (ICP/AES). In comparison with atomic-absorption spectroscopy (AAS), ICP/AES is faster and more accurate than AAS. Results of analyses stored in data base, used to trace variations in concentrations of chemical elements in materials during long-term storage, and used in timely manner in investigations of failures. Acid-digestion portion of procedure applied to other thermal-insulation materials containing room-temperature-vulcanizing silicones and enables instrumental analysis of these materials.
Document ID
19940000674
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Solomon, William C.
(Martin Marietta Corp.)
Date Acquired
August 16, 2013
Publication Date
December 1, 1994
Publication Information
Publication: NASA Tech Briefs
Volume: 18
Issue: 12
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
MFS-28807
Accession Number
94B10674
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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