Early study on the application of Nexcera ultra low thermal expansion ceramic to space telescopes
2017
Optical mirrors for space telescopes, which require high precision and high thermal stability, have commonly
been made of glass materials such as ultra low expansion glass (e.g. ULE®) or extremely low expansion glassceramic
(e.g. ZERODUR® or CLEARCERAM®). These materials have been well-known for their reliability
due to their long history of achievements in many space applications.
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