| 摘要 |
<p>Shaped part based on supercritically dried silica aerogel parts in the form of spherical particles having diameters of from 0.1 to 10 mm or of sheet-like pieces having thicknesses of from 2 to 30 mm and diameters of from 1 to 5 cm, characterized in that the formed part is produced by pressing at temperatures in the range from 500 to 1000 DEG C and pressures of from 0.5 to 10 bar, under a protective gas such as nitrogen, if required, and without the addition of binders.</p> |
