In-situ neutron scattering study of crystallization in a Zr-based bulk metallic glass

D. Ma; A. D. Stoica; X. L. Wang; Z. P. Lu; T. Proffen

doi:10.1007/s00339-010-5608-1

In-situ neutron scattering study of crystallization in a Zr-based bulk metallic glass

D. Ma, A. D. Stoica, X. L. Wang, Z. P. Lu, T. Proffen

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

9 Scopus citations

Abstract

Crystallization of a Zr-based bulk metallic glass (Zr_50.4Cu _40.6A_l9) upon isothermal annealing has been investigated using in-situ neutron diffraction and the pair distribution function (PDF) method. By extracting the contribution of the crystalline phase from the total scattering, we are able to obtain the real-time structure factor and pair distribution function for the crystalline phase as well as its volume fraction. Our analysis shows that the crystallization follows the Johnson-Mehl-Avrami law with a time exponent f 4.0 ± 0.2, indicating a three-dimensional nucleation and growth process. The analysis method established in the present study paves a new way for probing the kinetics of phase transformation for a broad range of non-crystalline materials including liquids and glasses.

Original language	English
Pages (from-to)	537-542
Number of pages	6
Journal	Applied Physics A: Materials Science and Processing
Volume	99
Issue number	3
DOIs	https://doi.org/10.1007/s00339-010-5608-1
State	Published - Jun 2010
Externally published	Yes

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title = "In-situ neutron scattering study of crystallization in a Zr-based bulk metallic glass",

abstract = "Crystallization of a Zr-based bulk metallic glass (Zr50.4Cu 40.6Al9) upon isothermal annealing has been investigated using in-situ neutron diffraction and the pair distribution function (PDF) method. By extracting the contribution of the crystalline phase from the total scattering, we are able to obtain the real-time structure factor and pair distribution function for the crystalline phase as well as its volume fraction. Our analysis shows that the crystallization follows the Johnson-Mehl-Avrami law with a time exponent f 4.0 ± 0.2, indicating a three-dimensional nucleation and growth process. The analysis method established in the present study paves a new way for probing the kinetics of phase transformation for a broad range of non-crystalline materials including liquids and glasses.",

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T1 - In-situ neutron scattering study of crystallization in a Zr-based bulk metallic glass

AU - Ma, D.

AU - Stoica, A. D.

AU - Wang, X. L.

AU - Lu, Z. P.

AU - Proffen, T.

PY - 2010/6

Y1 - 2010/6

N2 - Crystallization of a Zr-based bulk metallic glass (Zr50.4Cu 40.6Al9) upon isothermal annealing has been investigated using in-situ neutron diffraction and the pair distribution function (PDF) method. By extracting the contribution of the crystalline phase from the total scattering, we are able to obtain the real-time structure factor and pair distribution function for the crystalline phase as well as its volume fraction. Our analysis shows that the crystallization follows the Johnson-Mehl-Avrami law with a time exponent f 4.0 ± 0.2, indicating a three-dimensional nucleation and growth process. The analysis method established in the present study paves a new way for probing the kinetics of phase transformation for a broad range of non-crystalline materials including liquids and glasses.

AB - Crystallization of a Zr-based bulk metallic glass (Zr50.4Cu 40.6Al9) upon isothermal annealing has been investigated using in-situ neutron diffraction and the pair distribution function (PDF) method. By extracting the contribution of the crystalline phase from the total scattering, we are able to obtain the real-time structure factor and pair distribution function for the crystalline phase as well as its volume fraction. Our analysis shows that the crystallization follows the Johnson-Mehl-Avrami law with a time exponent f 4.0 ± 0.2, indicating a three-dimensional nucleation and growth process. The analysis method established in the present study paves a new way for probing the kinetics of phase transformation for a broad range of non-crystalline materials including liquids and glasses.

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In-situ neutron scattering study of crystallization in a Zr-based bulk metallic glass

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