| Issue |
Europhys. Lett.
Volume 71, Number 4, August 2005
|
|
|---|---|---|
| Page(s) | 611 - 617 | |
| Section | Condensed matter: structural, mechanical and thermal properties | |
| DOI | https://doi.org/10.1209/epl/i2005-10124-1 | |
| Published online | 22 July 2005 | |
Pressure-temperature-time-transition diagram in a strong metallic supercooled liquid
1
Institute of Physics, Chinese Academy of Sciences - Beijing 100080, PRC
2
Japan Atomic Energy Research Institute, SPring-8 - Hyogo 679-5198, Japan
3
Spallation Neutron Source and Metals Ceramics Division Oak Ridge National Laboratory - Oak Ridge, TN 37830, USA
Corresponding author: whw@aphy.iphy.ac.cn
Received:
10
February
2005
Accepted:
20
June
2005
The crystallization kinetics and nucleation mechanism of a bulk
metallic glass-forming alloy
(vit4) in the
entire supercooled liquid region (SLR) is investigated using
in situ high-pressure and high-temperature X-ray
diffraction with synchrotron radiation, which allows us for the
first time to simultaneously determine the crystallization kinetics and phase
evolution
of a metallic liquid as a function of
time under high pressure. The results are summarized in a
pressure-time–temperature-transformation (PTTT) diagram with two
time scales. The results suggest that the dominant
crystallization mechanism of the BMG is growth-controlled.
PACS: 61.43.Fs – Glasses / 62.50.+p – High-pressure and shock wave effects in solids and liquids / 64.70.Dv – Solid-liquid transitions
© EDP Sciences, 2005
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