The effect of Na2O, K2O, Li2O addition on structure of glass-ceramic materials from SiO2-Al2O3-CaO-MgO-R2O system modified by variable molar ratio of SiO2/Al2O3.
| Reference | Presenter | Authors (Institution) | Abstract |
|---|---|---|---|
| 16-028 | Janusz Partyka | Partyka, J.(AGH University od Science and Technology); Pasiut, K.(AGH University od Science and Technology); Le?niak, M.(AGH University od Science and Technology); Bu?ko, M.(AGH University od Science and Technology); | In the scientific literature, regarding to
influence of sodium and potassium oxides on properties of glass-ceramic
materials, the prevailing view is, that their functionality is almost identical.
The third alkali metal oxide, Li2O is
considered to be the strongest flux with a very low coefficient of thermal
expansion. On the other hand, in his book "Glaze Chemistry" Hamilton
claims, that lithium produce
the same effect as sodium and potassium oxides. The presentation shows the
results of research on the effect of addition listed alkali metal oxides on the
structure of glass-crystalline materials at a variable ratio of molar ratios
SiO2/Al2O3. The results of research in the MIR
and Raman infrared, NMR and XRD show significant differences with the behavior
of these oxides.<!--[if gte mso 9]> |
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