Jahr |
2006 |
Autor(en) |
Andreas Reiser, Gernot Kasper |
Titel |
On the pressure dependence of fragility |
KIP-Nummer |
HD-KIP 06-34 |
KIP-Gruppe(n) |
F3 |
Dokumentart |
Paper |
Keywords (angezeigt) |
glass transition, high pressure, dielectric loss and relaxation |
Quelle |
Europhys. Lett. 76 (2006) 1137 |
Abstract (en) |
We have investigated the fragility of glycerol, propylene carbonate, and meta-fluoroaniline at pressures up to 700 MPa using dielectric spectroscopy. All three small-molecule glass formers do not show a pressure dependence of fragility within experimental error. The ratio of glass transition temperature and Vogel-Fulcher-Tammann temperature is pressure independent. The results are discussed in the frame of the defect diffusion model.
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