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Glass Forming Ability of Metallic Glasses Evaluated by a New Criterion |
| CAO Qing-Ping1,2, LI Jin-Fu1, ZHOU Yao-He1 |
| 1State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 2002402International Center for New-Structured Materials (ICNSM), Zhejiang University and Laboratory of New-Structured Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027 |
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| Cite this article: |
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CAO Qing-Ping, LI Jin-Fu, ZHOU Yao-He 2008 Chin. Phys. Lett. 25 3459-3462 |
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Abstract The glass-forming ability (GFA) of Cu--Zr binary alloys is evaluated using the existing criteria based on calorimetric parameters, and poor relations are found. Therefore, another parameter Trk defined as Tk/Tl, in which Tk is the Kauzmann temperature and Tl the equilibrium liquidus temperature, is proposed. It exhibits good agreements with the experimental data of the Cu--Zr system and other representative bulk metallic glass formers so long as classifying them into strong or fragile category. It is suggested that kinetic effects are irrelevantly incorporated in the GFA analysis in the previous work.
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| Keywords:
81.05.Kf
81.70.Pg
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Received: 07 April 2008
Published: 29 August 2008
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| PACS: |
81.05.Kf
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(Glasses (including metallic glasses))
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81.70.Pg
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(Thermal analysis, differential thermal analysis (DTA), differential thermogravimetric analysis)
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