Landolt-Börnstein - Group III Condensed Matter

7 Diffusion in oxide glasses

Abstract

This chapter discusses diffusion in oxide glasses, which are the best known class of amorphous materials. The most popular diffusivity measurement methods include radiotracer sectioning, gas evolution after equilibration, and dc conductivity measurements. Traditionally oxide glasses are first classified according to the glass former oxide in the highest concentration, followed by conditional glass former and network modifier oxide(s), respectively. So a glass containing oxides of aluminum, silicon and sodium is called sodium aluminosilicate glass - the emphasis decreases from silicon to aluminum to sodium. This system with respect to the glass former oxide is adopted and the composition has been arranged in the first column of the tables and figures according to the following hierarchy: (i) silicate glasses (ii) non-silicate glasses. Silicate glasses form the largest class of oxide glasses and number more than all other kinds of oxide glasses combined. Therefore, tables and figures on silicate glasses are presented as a separate class. Within this class, the data are first presented for silica, followed by that for binary, ternary, and other multi-component silicate glasses. Within each silicate subgroup the results are arranged alphabetically by the cation of the oxide. Non-silicate glasses i.e. those containing no SiO2 form the second class and this class is divided into groups such that the glass former oxides have top alphabetical hierarchy. For a particular glass former oxide, the glasses are arranged according to the same hierarchy as for silicate glasses.

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Title
7 Diffusion in oxide glasses
Book Title
Diffusion in Non-Metallic Solids (Part 1)
Book DOI
10.1007/b59654
Chapter DOI
10.1007/10542761_14
Part of
Landolt-Börnstein - Group III Condensed Matter
Volume
33B1
Editors
  • D. L. Beke
Authors
  • C. H. Hsieh
  • H. Jain

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