Crystallization behavior of the Zr63Al7.5Cu 17.5Ni10B2 amorphous alloy during isothermal annealing

J. S.C. Jang; L. J. Chang; G. J. Chen; J. C. Huang

doi:10.1016/j.intermet.2004.12.025

Crystallization behavior of the Zr₆₃Al_7.5Cu _17.5Ni₁₀B₂ amorphous alloy during isothermal annealing

J. S.C. Jang, L. J. Chang, G. J. Chen, J. C. Huang

材料科學與工程研究所

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

25 引文斯高帕斯（Scopus）

摘要

The crystallization behavior of Zr₆₃Al_7.5Cu _17.5Ni₁₀B₂ amorphous Alloy was studied by means of scanning differential calorimetry (DSC), X-ray diffraction (XRD), and transmission electron microscopy (TEM). A single stage transformation of the amorphous phase forming a Zr₂Cu-type crystalline phase was observed. Kinetics for such single stage crystallization was analyzed by means of Johnson-Mehl-Avrami equation and discussed regarding to the value of Avrami exponent. In addition, the cube of crystal size presents a linear relationship with isothermal annealing time. This indicates that the crystallization process of Zr₆₃Al_7.5Cu_17.5Ni₁₀B₂ amorphous alloy belongs to thermally activated process of Arrhenius type. From the HRTEM analysis, small amount of Zr₂Cu-type crystals in the nano-scale dimension (10-20 nm) were observed to precipitate from the amorphous matrix upon the early stage of isothermal annealing the amorphous alloy at the temperature between the glass transition (T_g) and the onset crystallization temperature (T_x).

原文	???core.languages.en_GB???
頁（從 - 到）	907-911
頁數	5
期刊	Intermetallics
卷	13
發行號	8
DOIs	https://doi.org/10.1016/j.intermet.2004.12.025
出版狀態	已出版 - 8月 2005

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10.1016/j.intermet.2004.12.025

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@article{c33a020437cf4b83bf173bf40805b773,

title = "Crystallization behavior of the Zr63Al7.5Cu 17.5Ni10B2 amorphous alloy during isothermal annealing",

abstract = "The crystallization behavior of Zr63Al7.5Cu 17.5Ni10B2 amorphous Alloy was studied by means of scanning differential calorimetry (DSC), X-ray diffraction (XRD), and transmission electron microscopy (TEM). A single stage transformation of the amorphous phase forming a Zr2Cu-type crystalline phase was observed. Kinetics for such single stage crystallization was analyzed by means of Johnson-Mehl-Avrami equation and discussed regarding to the value of Avrami exponent. In addition, the cube of crystal size presents a linear relationship with isothermal annealing time. This indicates that the crystallization process of Zr63Al7.5Cu17.5Ni10B2 amorphous alloy belongs to thermally activated process of Arrhenius type. From the HRTEM analysis, small amount of Zr2Cu-type crystals in the nano-scale dimension (10-20 nm) were observed to precipitate from the amorphous matrix upon the early stage of isothermal annealing the amorphous alloy at the temperature between the glass transition (Tg) and the onset crystallization temperature (Tx).",

keywords = "A. Nanostructured intermetallics, B. Glasses, metallic, B. Grain growth, B. Phase transformations, B. Thermal stability",

author = "Jang, {J. S.C.} and Chang, {L. J.} and Chen, {G. J.} and Huang, {J. C.}",

note = "Funding Information: The authors would like to gratefully acknowledge the sponsorship from the National Science Council of ROC under the project NSC92-2216-E-214-015.",

year = "2005",

month = aug,

doi = "10.1016/j.intermet.2004.12.025",

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volume = "13",

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journal = "Intermetallics",

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T1 - Crystallization behavior of the Zr63Al7.5Cu 17.5Ni10B2 amorphous alloy during isothermal annealing

AU - Jang, J. S.C.

AU - Chang, L. J.

AU - Chen, G. J.

AU - Huang, J. C.

N1 - Funding Information: The authors would like to gratefully acknowledge the sponsorship from the National Science Council of ROC under the project NSC92-2216-E-214-015.

PY - 2005/8

Y1 - 2005/8

N2 - The crystallization behavior of Zr63Al7.5Cu 17.5Ni10B2 amorphous Alloy was studied by means of scanning differential calorimetry (DSC), X-ray diffraction (XRD), and transmission electron microscopy (TEM). A single stage transformation of the amorphous phase forming a Zr2Cu-type crystalline phase was observed. Kinetics for such single stage crystallization was analyzed by means of Johnson-Mehl-Avrami equation and discussed regarding to the value of Avrami exponent. In addition, the cube of crystal size presents a linear relationship with isothermal annealing time. This indicates that the crystallization process of Zr63Al7.5Cu17.5Ni10B2 amorphous alloy belongs to thermally activated process of Arrhenius type. From the HRTEM analysis, small amount of Zr2Cu-type crystals in the nano-scale dimension (10-20 nm) were observed to precipitate from the amorphous matrix upon the early stage of isothermal annealing the amorphous alloy at the temperature between the glass transition (Tg) and the onset crystallization temperature (Tx).

AB - The crystallization behavior of Zr63Al7.5Cu 17.5Ni10B2 amorphous Alloy was studied by means of scanning differential calorimetry (DSC), X-ray diffraction (XRD), and transmission electron microscopy (TEM). A single stage transformation of the amorphous phase forming a Zr2Cu-type crystalline phase was observed. Kinetics for such single stage crystallization was analyzed by means of Johnson-Mehl-Avrami equation and discussed regarding to the value of Avrami exponent. In addition, the cube of crystal size presents a linear relationship with isothermal annealing time. This indicates that the crystallization process of Zr63Al7.5Cu17.5Ni10B2 amorphous alloy belongs to thermally activated process of Arrhenius type. From the HRTEM analysis, small amount of Zr2Cu-type crystals in the nano-scale dimension (10-20 nm) were observed to precipitate from the amorphous matrix upon the early stage of isothermal annealing the amorphous alloy at the temperature between the glass transition (Tg) and the onset crystallization temperature (Tx).

KW - A. Nanostructured intermetallics

KW - B. Glasses, metallic

KW - B. Grain growth

KW - B. Phase transformations

KW - B. Thermal stability

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U2 - 10.1016/j.intermet.2004.12.025

DO - 10.1016/j.intermet.2004.12.025

M3 - 期刊論文

AN - SCOPUS:17844388118

SN - 0966-9795

VL - 13

SP - 907

EP - 911

JO - Intermetallics

JF - Intermetallics

IS - 8

ER -

Crystallization behavior of the Zr63Al7.5Cu 17.5Ni10B2 amorphous alloy during isothermal annealing

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Crystallization behavior of the Zr₆₃Al_7.5Cu _17.5Ni₁₀B₂ amorphous alloy during isothermal annealing