Kinetic evidence for the structural similarity between a supercooled liquid and an icosahedral phase in Zr65Al7.5Ni10Cu12.5Ag5 bulk metallic glass

M. W. Chen; I. Dutta; T. Zhang; A. Inoue; T. Sakurai

doi:10.1063/1.1383060

Kinetic evidence for the structural similarity between a supercooled liquid and an icosahedral phase in Zr₆₅Al_7.5Ni₁₀Cu_12.5Ag₅ bulk metallic glass

M. W. Chen^*
, I. Dutta
, T. Zhang
, A. Inoue
, T. Sakurai

^*Corresponding author for this work

Naval Postgraduate School
Johns Hopkins University
Tohoku University

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

By differential scanning calorimetric measurement, the kinetics of the phase transformation present in Zr₆₅Al_7.5Ni₁₀CU_12.5Ag₅ bulk metallic glass during continuous heating was investigated. It was found that the effective activation energy from a supercooled liquid to an icosahedral quasicrystalline phase is much lower than that from the supercooled liquid to eutectic crystalline phases. In addition, the activation energy from the icosahedral phase to the crystalline phases is almost the same as that from the supercooled liquid to the crystalline phases. Both of them support that the local atomic structure is similar for the supercooled liquid and the icosahedral phase in the bulk metallic glass.

Original language	English
Pages (from-to)	42-44
Number of pages	3
Journal	Applied Physics Letters
Volume	79
Issue number	1
DOIs	https://doi.org/10.1063/1.1383060
State	Published - 2 Jul 2001
Externally published	Yes

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abstract = "By differential scanning calorimetric measurement, the kinetics of the phase transformation present in Zr65Al7.5Ni10CU12.5Ag5 bulk metallic glass during continuous heating was investigated. It was found that the effective activation energy from a supercooled liquid to an icosahedral quasicrystalline phase is much lower than that from the supercooled liquid to eutectic crystalline phases. In addition, the activation energy from the icosahedral phase to the crystalline phases is almost the same as that from the supercooled liquid to the crystalline phases. Both of them support that the local atomic structure is similar for the supercooled liquid and the icosahedral phase in the bulk metallic glass.",

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AU - Chen, M. W.

AU - Dutta, I.

AU - Zhang, T.

AU - Inoue, A.

AU - Sakurai, T.

PY - 2001/7/2

Y1 - 2001/7/2

N2 - By differential scanning calorimetric measurement, the kinetics of the phase transformation present in Zr65Al7.5Ni10CU12.5Ag5 bulk metallic glass during continuous heating was investigated. It was found that the effective activation energy from a supercooled liquid to an icosahedral quasicrystalline phase is much lower than that from the supercooled liquid to eutectic crystalline phases. In addition, the activation energy from the icosahedral phase to the crystalline phases is almost the same as that from the supercooled liquid to the crystalline phases. Both of them support that the local atomic structure is similar for the supercooled liquid and the icosahedral phase in the bulk metallic glass.

AB - By differential scanning calorimetric measurement, the kinetics of the phase transformation present in Zr65Al7.5Ni10CU12.5Ag5 bulk metallic glass during continuous heating was investigated. It was found that the effective activation energy from a supercooled liquid to an icosahedral quasicrystalline phase is much lower than that from the supercooled liquid to eutectic crystalline phases. In addition, the activation energy from the icosahedral phase to the crystalline phases is almost the same as that from the supercooled liquid to the crystalline phases. Both of them support that the local atomic structure is similar for the supercooled liquid and the icosahedral phase in the bulk metallic glass.

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Kinetic evidence for the structural similarity between a supercooled liquid and an icosahedral phase in Zr₆₅Al_7.5Ni₁₀Cu_12.5Ag₅ bulk metallic glass

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