The structure of tin silicate glasses
UNSPECIFIED (1998) The structure of tin silicate glasses. In: 7th International Conference on the Structure of Non-Crystalline Materials (NCM7), SEP 15-19, 1997, CAGLIARI, ITALY.Full text not available from this repository.
The structures of four tin silicate, SnO-SiO2, glasses have been studied using pulsed neutron diffraction to investigate the environment of Sn2+. The glass structure is based on a tetrahedral [SiO4] network and we find that the mean Si-O distance increases slightly as SnO is added. The tin atoms have a well-defined environment, indicating that tin takes the role of a conditional glass former for all compositions. The predominant coordination polyhedron for Sn2+ is a [SnO3] triangular pyramid, although a minority of Sn2+ are in a [SnO4] square pyramid environment. particularly for the higher silica compositions. The majority of the oxygen-oxygen distances in both tin coordination polyhedra are the same as in the [SiO4] tetrahedra. No evidence has been found for a gross change in the short range order with composition which can be associated with a change in the physical properties. (C) 1998 Elsevier Science B.V. All rights reserved.
|Item Type:||Conference Item (UNSPECIFIED)|
|Subjects:||T Technology > TP Chemical technology
T Technology > TA Engineering (General). Civil engineering (General)
|Journal or Publication Title:||JOURNAL OF NON-CRYSTALLINE SOLIDS|
|Publisher:||ELSEVIER SCIENCE BV|
|Number of Pages:||9|
|Page Range:||pp. 300-308|
|Title of Event:||7th International Conference on the Structure of Non-Crystalline Materials (NCM7)|
|Location of Event:||CAGLIARI, ITALY|
|Date(s) of Event:||SEP 15-19, 1997|
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