NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login

Press Enter or click the Search button to begin your search.

Back to Results
Silazane to silicaThin film silica and/or methyl silicone were detected on most external surfaces of the retrieved LDEF. Known sources of silicone in or on the LDEF appear inadequate to explain the ubiquitous presence of the silica and silicone films. Hexamethyldisilazane (HMDS) was used as the Challenger tile waterproofing compound for the Challenger/LDEF deployment mission. HMDS releases NH3 which depolymerizes silicone RTV's. Polyurethanes were also attacked. Much of the silica/silicone contamination of LDEF resulted from HMDS.
Document ID
19920018042
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gale A. Harvey (NASA Langley Research Center Hampton, Virginia)
Date Acquired
September 6, 2013
Publication Date
June 1, 1992
Publication Information
Publication: Second LDEF Post-Retrieval Symposium Abstracts
Subject Category
Nonmetallic Materials
Report/Patent Number
NAS 1.55:10097
NASA-CP-10097
Meeting Information
Meeting: LDEF Post-Retrieval Symposium
Location: San Diego, CA
Country: US
Start Date: May 31, 1992
End Date: June 4, 1992
Sponsors: NASA Headquarters
Accession Number
92N27285
Funding Number(s)
PROJECT: RTOP 196-88-00-03
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.

Related Records

IDRelationTitle19920017975Collected WorksSecond LDEF Post-Retrieval Symposium Abstracts
No Preview Available