Sawa Yamagishi
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14 hours ago · Microscopic structure The amorphous structure of glassy silica (SiO 2) in two dimensions. No long-range order is present, although there is local ordering to the tetrahedral arrangement of oxygen (O) atoms around the silicon (Si) atoms. Microscopically, a single crystal has atoms in a near-perfect periodic arrangement; a polycrystal is composed of many microscopic crystals; and an amorphous ...
