A neutron diffraction investigation of the structure of vitreous germania
作者： J.A. Erwin Desa , Adrian C. Wright , Roger N. Sinclair
DOI: 10.1016/0022-3093(88)90437-1
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摘要: Abstract Neutron diffraction techniques have been employed to obtain an accurate high-resolution real space correlation function for vitreous GeO 2 . The GeO bond length is found be 1.739 A and the rms variation 0.048 A. distribution of intertetrahedral GeOGe angles narrower than equivalent SiO , but OĜeO within basic tetrahedral 4 structural units appear more distorted - in line with a similar trend corresponding α-quartz crystalline polymorphs. Structural (quasi-crystalline) models based on α-cristobalite are rejected that they fail account continuous torsion glass.
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