What is it about?
We present a short review on the use of bond counting methods to elucidate the structure of network-forming oxide systems. The approach is illustrated by use of case examples. Special attention is paid to the network forming versus network modifying role of several so-called intermediate cations. The work includes the derivation of a new analytical model for aluminosilicate glasses in which all the aluminium species are regarded as network formers. It is noted that the oxygen packing fraction acts as a marker for structural change in network-forming oxides under extreme conditions.
Featured Image
Photo by Ivan Aviles on Unsplash
Why is it important?
The findings demonstrate the power of the bond-counting methodology in elucidating the structure of amorphous oxides and show the rich diversity in framework structures that originates on progressing from a Zachariasen viewpoint of oxide networks.
Perspectives
We present a straight-forward method for counting the numbers of one-, two- and three-coordinated oxygen atoms from knowledge of the material composition and coordination numbers of the network forming motifs.
Professor Philip S Salmon
University of Bath
Read the Original
This page is a summary of: Bond counting strategies in an oxygen centric perspective on the structure of oxide glasses, Journal of the Ceramic Society of Japan, April 2026, Ceramic Society of Japan,
DOI: 10.2109/jcersj2.26010.
You can read the full text:
Contributors
The following have contributed to this page
