Zerodur is a lithium-aluminosilicate glass-ceramic manufactured by Schott AG. Zerodur has a near zero coefficient of thermal expansion (CTE), and is used...
12 KB (864 words) - 22:01, 12 July 2024
Flexible ultra-thin glass Zerodur lightweight mirror substrate Keck II telescope's segmented primary mirror made of Zerodur Ceran glass-ceramic cooktop...
21 KB (1,851 words) - 23:20, 11 July 2024
mirrors were made in Lexington, Massachusetts by Itek Optical Systems from Zerodur glass-ceramic by the German company Schott AG. On the telescope, each segment...
17 KB (1,885 words) - 19:15, 18 May 2024
Glass-ceramics Bioactive glass CorningWare Glass-ceramic-to-metal seals Macor Zerodur Preparation Annealing Chemical vapor deposition Glass batch calculation...
89 KB (9,070 words) - 08:49, 10 July 2024
Glass-ceramics Bioactive glass CorningWare Glass-ceramic-to-metal seals Macor Zerodur Preparation Annealing Chemical vapor deposition Glass batch calculation...
97 KB (11,951 words) - 21:41, 29 June 2024
operation. The mirror is being cast from the same low-expansion ceramic Zerodur as the existing Very Large Telescope mirrors in Chile. The other contract...
49 KB (5,222 words) - 18:33, 1 July 2024
in a small group of transparent materials with low CTE such as Vycor, Zerodur, Cer‑Vit and fused quartz. Materials of low coefficient of thermal expansion...
3 KB (299 words) - 04:15, 19 January 2023
Glass-ceramics Bioactive glass CorningWare Glass-ceramic-to-metal seals Macor Zerodur Preparation Annealing Chemical vapor deposition Glass batch calculation...
38 KB (4,632 words) - 02:53, 11 April 2024
Glass-ceramics Bioactive glass CorningWare Glass-ceramic-to-metal seals Macor Zerodur Preparation Annealing Chemical vapor deposition Glass batch calculation...
64 KB (6,692 words) - 02:30, 7 July 2024
composition Titanium Metal 8.6 26 Tungsten Metal 4.5 13.5 Water Nonmetal 69 207 "Zerodur" Glass-ceramic ≈0.007–0.1 from 0 °C to 50 °C ALLVAR Alloy 30 Metal alloy...
48 KB (6,032 words) - 18:56, 28 May 2024