Hydroxide-Assisted Bonding of Ultra-Low-Expansion Glass
NASA’s Jet Propulsion Laboratory
Tuesday, April 01 2008
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Preparation of bond surfaces is critical to success.
A process for hydroxide-assisted bonding has been developed as a means of joining optical components made of ultra-low-expansion (ULE) glass, while maintaining sufficiently precise alignment between. The process is intended mainly for use in applications in which (1) bonding of glass optical components by use of epoxy does not enable attainment of the required accuracy and dimensional stability and (2) conventional optical contacting (which affords the required accuracy and stability) does not afford adequate bond strength.
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