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Novel Phenylethynyl Imide Silanes as Coupling Agents for Titanium AlloyThe durability of titanium (Ti) alloys bonded with high temperature adhesives such as polyimides has failed to attain the level of performance required for many applications. The problem to a large part is attributed to the instability of the surface treatment on the Ti substrate. Although Ti alloy adhesive specimens with surface treatments such as chromic acid anodization, Pasa-Jell, Turco, etc. have provided high initial mechanical properties, these properties have decreased as a function of aging at ambient temperature and faster, when aged at elevated temperatures or in a hot-wet environment. As part of the High Speed Civil Transport program where Ti honeycomb sandwich structure must perform for 60,000 hours at 177 C, work was directed to the development of environmentally safe, durable Ti alloy surface treatments.
Document ID
20040086576
Acquisition Source
Langley Research Center
Document Type
Other
Authors
Park, C. (National Academy of Sciences - National Research Council Hampton, VA, United States)
Lowther, S. E. (NASA Langley Research Center Hampton, VA, United States)
Smith, J. G., Jr. (NASA Langley Research Center Hampton, VA, United States)
Conell, J. W. (NASA Langley Research Center Hampton, VA, United States)
Hergenrother, P. M. (NASA Langley Research Center Hampton, VA, United States)
SaintClair, T. L. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2004
Subject Category
Inorganic, Organic And Physical Chemistry
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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