Structural Changes in Metallic Glass-Forming Liquids on Cooling and Subsequent Vitrification in Relationship with Their Properties

D V Louzguine-Luzgin

doi:10.3390/ma15207285

Structural Changes in Metallic Glass-Forming Liquids on Cooling and Subsequent Vitrification in Relationship with Their Properties

Materials (Basel). 2022 Oct 18;15(20):7285. doi: 10.3390/ma15207285.

Author

D V Louzguine-Luzgin^{1

2}

Affiliations

¹ Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Aoba-Ku, Sendai 980-8577, Japan.
² MathAM-OIL, National Institute of Advanced Industrial Science and Technology (AIST), Sendai 980-8577, Japan.

Abstract

The present review is related to the studies of structural changes observed in metallic glass-forming liquids on cooling and subsequent vitrification in terms of radial distribution function and its analogues. These structural changes are discussed in relationship with liquid's properties, especially the relaxation time and viscosity. These changes are found to be directly responsible for liquid fragility: deviation of the temperature dependence of viscosity of a supercooled liquid from the Arrhenius equation through modification of the activation energy for viscous flow. Further studies of this phenomenon are necessary to provide direct mathematical correlation between the atomic structure and properties.

Keywords: fragility; liquid; metallic glass; structure; viscosity.

Publication types

Review

Grants and funding

Support from European Synchrotron Radiation Facility and Japan Synchrotron Radiation Research Institute (JASRI) (Proposal No. 2019B1350) are gratefully acknowledged.