NDLI: Bond sensitivity to silicone contamination

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Bond sensitivity to silicone contamination

Content Provider	NASA Technical Reports Server (NTRS)
Author	Cash, Stephen F. Technical Monitor Hudson, W. D. Caldwell, G. A.
Copyright Year	2003
Description	Currently during fabrication of the Space Shuttle booster rocket motors, the use of silicone and silicone-containing products is prohibited in most applications. Many shop aids and other materials containing silicone have the potential, if they make contact with a bond surface, to transfer some of the silicone to the substrates being bonded. Such transfer could result in a reduction of the bond strength or even failure of the subsequent bonds. This concern is driving the need to understand the effect of silicones and the concentration needed to affect a given bond-line strength. Additionally, as silicone detection methods used for materials acceptance improve what may have gone unnoticed earlier is now being detected. Thus, realistic silicone limits for process materials (below which bond performance is satisfactory) are needed rather than having an absolute no silicone permitted policy.
File Size	237280
Page Count	3
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20030064092
Archival Resource Key	ark:/13960/t0zp90779
Language	English
Publisher Date	2003-01-01
Access Restriction	Open
Subject Keyword	Nonmetallic Materials Fabrication Metal Bonding Bonded Joints Mechanical Properties Adhesive Bonding Booster Rocket Engines Silicones Substrates Space Shuttle Boosters Contamination Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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