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Short-Range and Medium-Range Order in Lithium Silicate Glasses, Part II: Simulation of the Structure by the Reverse Monte Carlo Method

Uhlig, Harald; Hoffmann, Michael J.; Lamparter, Hannes-Peter; Aldinger, Fritz; Bellissent, Robert; Steeb, Siegfried

Abstract:
The results of X-ray and neutron diffraction experiments with
(Li2O)(x)(SiO2)(100-x) glasses (x = 0, 20, 33.3, and 40) are discussed
using the Reverse Monte Carlo method to produce atomic clusters, which
are analyzed with respect to the O-O distribution, the angular
correlations within the first and higher coordination spheres, and the
bond-orientational multipole moments, Within Li2O-containing silicate
glasses, each lithium atom is surrounded by a ring of six SiO4
tetrahedra in such a way that four oxygen atoms lie at the joints of a
tetragonal cell entered by lithium. Thus, the lithium atoms increase
the order of the glass.


Zugehörige Institution(en) am KIT Institut für Keramik im Maschinenbau (IKM)
Publikationstyp Zeitschriftenaufsatz
Jahr 1996
Sprache Englisch
Identifikator ISSN: 0002-7820
KITopen ID: 1000007711
Erschienen in Journal of the American Ceramic Society
Band 79
Heft 11
Seiten 2839-2846
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