Author/Authors :
Collins، نويسنده , , Craig and Zhou، نويسنده , , Wuzong and Mackay، نويسنده , , Alan L. and Klinowski، نويسنده , , Jacek، نويسنده ,
Abstract :
The bulk of the `silica gardenʹ, made by seeding a solution of sodium silicate with crystals of aluminium nitrate, is an amorphous aluminosilicate. Transmission electron microscopy reveals a hierarchic substructure involving fine tubes (≈44 nm in diameter) composed of amorphous silica rods. It is also possible that the macroscopic fibres seen by scanning electron microscopy contain periodic arrays of microtubules ≈4.4 μm in diameter.