任意密度二氧化硅气凝胶的研制

IEEE Nuclear Science Symposium Conference Record, 2005 Pub Date : 2005-12-01 DOI:10.1109/NSSMIC.2005.1596380

M. Tabata, I. Adachi, T. Fukushima, H. Kawai, H. Kishimoto, A. Kuratani, H. Nakayama, S. Nishida, T. Noguchi, K. Okudaira, Y. Tajima, H. Yano, H. Yokogawa, H. Yoshida

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引用次数: 19

摘要

开发了高折射率和低折射率二氧化硅气凝胶的新生产方法。酒精凝胶在室温下非常缓慢的收缩使得生产具有高达1.265的高折射率的无裂纹气凝胶成为可能。折射率高于1.08的气凝胶在400 nm波长下的透射长度约为10 ~ 20 mm。一种由酒精凝胶制成的模具，在超临界干燥过程中经受收缩，提供的气凝胶密度极低，为0.009 g/cm3，对应的折射率为1.002。我们已经成功地生产了密度范围很广的气凝胶

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Development of silica aerogel with any density

New production methods of silica aerogel with high and low refractive indices have been developed. A very slow shrinkage of alcogel at room temperature has made possible producing aerogel with high refractive indices of up to 1.265 without cracks. Even higher refractive indices than 1.08, the transmission length of the aerogel obtained from this technique has been measured to be about 10 to 20 mm at 400 nm wave length. A mold made of alcogel which endures shrinkage in the supercritical drying process has provided aerogel with the extremely low density of 0.009 g/cm3, which corresponds to the refractive index of 1.002. We have succeeded producing aerogel with a wide range of densities

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IEEE Nuclear Science Symposium Conference Record, 2005

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