The thermophysical properties of bulk metallic glass-forming liquids

Authors
Citation
R. Busch, The thermophysical properties of bulk metallic glass-forming liquids, JOM-J MIN, 52(7), 2000, pp. 39-42
Citations number
58
Categorie Soggetti
Metallurgy
Journal title
JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY
ISSN journal
10474838 → ACNP
Volume
52
Issue
7
Year of publication
2000
Pages
39 - 42
Database
ISI
SICI code
1047-4838(200007)52:7<39:TTPOBM>2.0.ZU;2-3
Abstract
Bulk metallic glass-forming liquids are alloys with typically three to five metallic components that have a large atomic-size mismatch and a compositi on close to a deep eutectic. They are dense liquids with small free volumes and viscosities that are several orders of magnitude higher than in pure m etals ou previously known alloys. In addition, these melts are energeticall y closer to the crystalline slate than other metallic melts dire to their h igh packing density in conjunction with a tendency to develop short-range o rder. These factors lead to slow crystallization kinetics and high glass-fo rming ability. Crystallization kinetics is very complex, especially in the vicinity off the glass transition, dire to the influence of phase separatio n and the decoupling of the diffusion constants of the different species.