Chin. Phys. Lett.  2002, Vol. 19 Issue (11): 1653-1656    DOI:
Original Articles |
Crystallization of the Amorphous Zr70Cu20Ni10 Alloy
WANG Huan-Rong1;LIU Yu-Xian2;XIAO Li-Mei2;HUI Xi-Dong3
1Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Ji’nan 250061 2School of Materials Science and Engineering, Shandong University, Ji’nan 250061 3State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083
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WANG Huan-Rong, LIU Yu-Xian, XIAO Li-Mei et al  2002 Chin. Phys. Lett. 19 1653-1656
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Abstract Crystallization behaviour of amorphous the Zr70Cu20Ni10 alloy within the supercooled liquid region has been investigated by means of differential scan calorimetry (DSC) and transmission electron microscopy (TEM). It is found that the relationship between the incubation time, which is necessary for amorphous Zr70Cu20Ni10 alloy to nucleate and grow, and the annealing temperature obeys an exponential function. Similar relationship can also be observed between the peak time corresponding to the minimum of the exothermic reaction in the DSC scan and the annealing temperature. TEM observations confirm that the first exothermic peak in the DSC trace of amorphous Zr70Cu20Ni10 alloy mainly corresponds to the precipitation of the Zr2Cu phase, while the second one mainly corresponds to the precipitation of the nanoscale Zr2Ni phase.
Keywords: 61.43.Dq     
Published: 01 November 2002
PACS:  61.43.Dq (Amorphous semiconductors, metals, and alloys)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2002/V19/I11/01653
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