1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Influence of aluminum speciation on the stability of aluminosilicate glasses against crystallization
Rent:
Rent this article for
USD
10.1063/1.4739005
/content/aip/journal/apl/101/4/10.1063/1.4739005
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/4/10.1063/1.4739005
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Calorimetric response to heating at 20 K/min in argon for the (76−x)SiO2xAl2O3−16Na2O−8CaO glasses with x = 0, 2.7, 5.3, 8, 10.7, 13.3, 16, 18.7, 21.3, and 24. The dashed blue line indicates the change in glass transition temperature (T g) with composition. The red circles indicate the onset of crystallization in the glasses with 21.3 and 24 mol% Al2O3.

Image of FIG. 2.
FIG. 2.

(a) Composition dependence of the glass transition temperature obtained from DSC (T g,DSC) and equilibrium viscosity (T g,vis) measurements. (b) Angell fragility plot showing the logarithmic viscosity (log η) as a function of the T g scaled inverse temperature (T g/T) for five selected liquids.

Image of FIG. 3.
FIG. 3.

Composition dependence of the liquid fragility index m obtained from fitting the MYEGA equation (see Ref. 24) to the viscosity data. The dashed line is the guide for eyes.

Image of FIG. 4.
FIG. 4.

27Al MAS NMR spectra of the aluminosilicate glasses (see Ref. 36). The spectra show unchanging lineshapes for glasses having [Al2O3]< [Na2O] and asymmetrical broadening for glasses with [Al2O3] ≥ [Na2O]. The inset shows simulation of the AlIV and AlV resonances for the x = 24 glass.

Image of FIG. 5.
FIG. 5.

Composition dependence of the number of NBO/T calculated based on the analyzed compositions and the fraction of tetrahedral aluminum from 27Al MAS NMR.

Loading

Article metrics loading...

/content/aip/journal/apl/101/4/10.1063/1.4739005
2012-07-24
2014-04-17
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Influence of aluminum speciation on the stability of aluminosilicate glasses against crystallization
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/4/10.1063/1.4739005
10.1063/1.4739005
SEARCH_EXPAND_ITEM