Reports

Crystalline Ordering in Silica and Germania Glasses

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Science  12 Jan 1973:
Vol. 179, Issue 4069, pp. 177-179
DOI: 10.1126/science.179.4069.177

Abstract

The diffraction patterns of both silica and germania glasses are consistent with a structure in which nearly all of the atoms belong to tridymite-like regions of up to about 20 angstroms or more that are bonded efficiently together in a manner analogous to that found in twinned crystals.