✦ LIBER ✦

Thermal expansion at low temperatures of glass-ceramics and glasses

✍ Scribed by G.K. White

Publisher: Elsevier Science
Year: 1976
Tongue: English
Weight: 400 KB
Volume: 16
Category: Article
ISSN: 0011-2275
DOI: 10.1016/0011-2275(76)90007-2

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✦ Synopsis

The linear thermal expansion coefficient, a, has been measured from 2 to 32 K and from 55 to 90 K for a machineable glass-ceramic, an "ultra-low expansion" titanium silicate glass (Coming ULE), and ceramic glasses (Cer-Vit and Zerodur), and for glassy carbon, a is negative for the ultra-low expansion materials below 100 K, as for pure vitreous silica. Comparative data are reported for a-quartz, a-cristobafite, common opal, and vitreous silica.

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