WebZERODUR® TAILORED has much lower maximum thermal expansion for given application temperature profiles. The variant is used for the mirror blanks of ESO’s ELT (Extremely Large Telescope) project on Cerro Armazones in Chile. YOUR ADVANTAGES. Thermal expansion behavior optimized to individual requirements. WebOct 6, 2010 · Zerodur material is considered as the ideal material in the high performance optic systems because of its excellent thermal stability characteristics. ... Moreover, in consideration of the re-deposition phenomenon in the machining process, the composition of the re-deposition are studied and the genesis of the re-deposition were analysed ...
Deep etching of Zerodur glass ceramics in a fluorine-based …
WebSummary. Zerodur is an optical ceramic made by Schott, known best for its near-zero coefficient of thermal expansion. It is one of the predominant materials for advanced aerospace applications, as its CTE properties … Webadvantage of ZERODUR® in comparison to other optical glasses is that the material can be produced in very large dimensions and has a very low thermal expansion coefficient. Figure 1 shows a 1.33 m testing lens for the secondary mirror of GRANTECAN. In figure 7 a 1.5 m diameter ZERODUR® blank in optical standard grade is displayed. fl-dr32w-h
SCHOTT LITHOTEC ZERODUR - markoptics.com
WebOct 6, 2010 · Zerodur material is considered as the ideal material in the high performance optic systems because of its excellent thermal stability characteristics. This paper deals … WebJan 5, 2024 · Zerodur as a lithium‑aluminum-silicate-glass ceramic is a mixture of crystalline and amorphous phases. The crystalline phase is about 70 to 75 ... The chemical sidewall composition of the released structures was carefully investigated. A strong build up of non-volatile products at specified positions of the structures results from the two ... WebOct 15, 2024 · The chemical sidewall composition of the released structures was carefully investigated. A strong build up of non-volatile products at specified positions of the … fldp temple university