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Abstract
High-precision LASER dilatometry with a unique measurement setup was applied to the bulk metallic glass alloy Zr52.5Ti5Cu17.9Ni14.6Al10 (Vit105) for specific volume studies. Employing small temperature steps of ΔT=5 and 10 K and long measurement times effective heating rates of the order of 10−2 K/min were realized and changes of the specific volume were measured with a resolution of ΔV/V=10−6 down to 573 K. The temperature regime of these experiments is far below a calorimetrically determined glass transition of Tcalorg=659 K (5 K/min). The experimental results strongly support theoretical predictions for the existence of an ideal glass transition that was observed in this study at Tg=628 K for this bulk metallic glass model alloy.
Originalsprache | englisch |
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Aufsatznummer | 174113 |
Fachzeitschrift | Physical Review B |
Jahrgang | 89 |
Ausgabenummer | 17 |
DOIs | |
Publikationsstatus | Veröffentlicht - 2014 |
Fields of Expertise
- Advanced Materials Science
Treatment code (Nähere Zuordnung)
- Basic - Fundamental (Grundlagenforschung)
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- 1 Abgeschlossen
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FWF - Metallische Gläser - Freies Volumen in metallischen Massivgläsern - Untersuchung der Kinetik mit zeitabhängiger Dilatometrie
Luckabauer, M. & Sprengel, W.
1/01/11 → 30/06/15
Projekt: Forschungsprojekt