Title

Double-stage glass transition in a metallic glass

Authors

Authors

D. V. Louzguine-Luzgin; I. Seki; T. Yamamoto; H. Kawaji; C. Suryanarayana;A. Inoue

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Phys. Rev. B

Keywords

BULK AMORPHOUS-ALLOYS; SUPERCOOLED LIQUID; FREE-VOLUME; ENTHALPY; RELAXATION; ATOMIC PACKING; MECHANISM; DIFFUSION; Physics, Condensed Matter

Abstract

Glass-transition region is still a somewhat "dark area" in the field of materials science. In order to shed more light on this phenomenon, the glass-transition behavior was studied in a Zr(55)Cu(30)Al(10)Ni(5) glassy alloy by monitoring its specific-heat capacity measured using a differential scanning calorimeter during heating in a step-scan mode. This reduces the influence of kinetic effects which shield the transition. It is suggested that two types of relaxation (likely related to the diffusivities of different alloying elements Cu and Ni on the one hand as well as Zr and Al on the other hand) take place and compete in the glass-transition region.

Journal Title

Physical Review B

Volume

81

Issue/Number

14

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

6

WOS Identifier

WOS:000277210200060

ISSN

1098-0121

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