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.
Relaxation and Prigogine–Defay ratio of compressed glasses with negative viscosity-pressure dependence
Rent:
Rent this article for
USD
10.1063/1.3141382
/content/aip/journal/jcp/130/20/10.1063/1.3141382
http://aip.metastore.ingenta.com/content/aip/journal/jcp/130/20/10.1063/1.3141382

Figures

Image of FIG. 1.
FIG. 1.

DSC scans of an albite glass that was compressed and frozen-in under a pressure of 400 MPa (solid line) and the same sample after relaxation under ambient pressure (dashed line). Both samples were cooled at a rate of 4 K/min, DSC scans were performed at 20 K/min. Inset: comparative DSC upscans of the same sample, frozen-in under ambient pressure and different cooling rates (cooling rates are indicated by the labels).

Image of FIG. 2.
FIG. 2.

DSC scans of a tonalite glass, compressed and frozen-in under a pressure of 700 MPa (solid line) and the same sample after relaxation under ambient pressure (dashed line). Both samples were cooled at a rate of 4 K/min, DSC scans were performed at 20 K/min. Inset: comparative DSC upscans of the same sample, frozen-in under ambient pressure and different cooling rates (cooling rates are indicated by the labels).

Image of FIG. 3.
FIG. 3.

Evolution of isobaric heat capacity of albite glasses, near , compressed and frozen-in under different pressures (as indicated by the labels; solid lines). Dashed lines are the corresponding second DSC upscans, after relaxation under ambient pressure. All samples were cooled at a rate of 4 K/min, DSC scans were performed at 20 K/min.

Image of FIG. 4.
FIG. 4.

Relaxation onset ( by intersection method, determined by reheating a compressed sample under ambient pressure) in dependence on pressure of freezing. Lines represent linear regression of the data, for tonalite and for albite glass.

Image of FIG. 5.
FIG. 5.

Molar volume at , , as a function of for albite (circles) and tonalite (squares) melts. The coefficient of volumetric expansion of the melt at , , is derived from linear regression, .

Image of FIG. 6.
FIG. 6.

Molar volume at , of compressed glasses as a function of pressure of freezing for albite (circles) and tonalite (squares) melts. The irreversible compressibility of the melt at , , is derived from linear regression, .

Tables

Generic image for table
Table I.

Composition of examined samples, normalized to 100 mol %. Indicated pressure corresponds to compression conditions of the individual sample.

Generic image for table
Table II.

Properties of examined glasses after compression and/or slow cooling.

Generic image for table
Table III.

Thermophysical properties of albite and tonalite glasses.

Generic image for table
Table IV.

Derivatives of and with pressure for different melts.

Loading

Article metrics loading...

/content/aip/journal/jcp/130/20/10.1063/1.3141382
2009-05-27
2014-04-24
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Relaxation and Prigogine–Defay ratio of compressed glasses with negative viscosity-pressure dependence
http://aip.metastore.ingenta.com/content/aip/journal/jcp/130/20/10.1063/1.3141382
10.1063/1.3141382
SEARCH_EXPAND_ITEM