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19 August 2005 Time-dependent thermal strain behavior of Zerodur from 270K to 310K
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Abstract
Three samples of Schott Zerodur were recently measured using Jet Propulsion Laboratory's Cryogenic Dilatometer Facility. The initial purpose of these tests was to provide precision CTE measurements to help correlate thermomechanical models with the actual performance of NASA's Space Interferometry Mission (SIM) TOM-1C testbed. A total of six Zerodur test samples, as well as the SIM testbed mirror were machined from the same block of glass. Thermal strain as a function of time, sample temperature, and cooling rate were measured over a temperature range of 270K to 310K. Presented in this paper is a discussion of the sample configuration, test facilities, test method, data analysis, test results, and future plans.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paul B. Karlmann, Kerry J. Klein, Peter G. Halverson, Robert D. Peters, Marie B. Levine, David Van Buren, and Matthew J. Dudik "Time-dependent thermal strain behavior of Zerodur from 270K to 310K", Proc. SPIE 5868, Optical Materials and Structures Technologies II, 58680L (19 August 2005); https://doi.org/10.1117/12.615248
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