Abstract
In order to design a suspension for large cryogenic mirror, we have measured thermal conductance and shear strength of sapphire bonding in comparison with direct bonding and hydroxide-catalysis bonding. Thermal conductance per unit area of 4 [W/K/mm2] for the direct bonding and 0.3 [W/K/mm2] for the hydroxide-catalysis bonding were obtained around 20K. Shear strength of 28[MPa] for the direct bonding and 6.5 [MPa] for the hydroxide-catalysis bonding were measured at 300K. Based on those values, an estimated area that support a weight of a mirror produces a temperature step of less than 1% of a difference of temperature in between the main mirror and a mirror of Suspension Point Interferometer. © 2006 IOP Publishing Ltd.
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CITATION STYLE
Suzuki, T., Tomaru, T., Sato, N., Haruyama, T., Shintomi, T., Yamamoto, A., … Taylor, T. (2006). Application of sapphire bonding for suspension of cryogenic mirrors. In Journal of Physics: Conference Series (Vol. 32, pp. 309–314). Institute of Physics Publishing. https://doi.org/10.1088/1742-6596/32/1/046
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