Effect of soda lime flux on evaluation of the critical cooling rate of Pd82Si18 amorphous ribbon

Herein, we propose an experimental method based on the Barandiaran–Colmenero relation for evaluating the critical cooling rate (R c ) of Pd82Si18 amorphous ribbon. In this method, to determine the inherent R c of glass ribbon, heterogeneous nucleation is suppressed during the differential scanning c...

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Bibliographic Details
Published in:AIP advances 2017-09, Vol.7 (9), p.095308-095308-5
Main Authors: Wang, Xutong, Tian, Zhuang, Zeng, Mo, Nollmann, Niklas, Wilde, Gerhard, Tang, Chengying
Format: Article
Language:English
Subjects:
Cooling
Cooling rate
Flux
Intermetallic compounds
Lime
Nucleation
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Summary:Herein, we propose an experimental method based on the Barandiaran–Colmenero relation for evaluating the critical cooling rate (R c ) of Pd82Si18 amorphous ribbon. In this method, to determine the inherent R c of glass ribbon, heterogeneous nucleation is suppressed during the differential scanning calorimeter measurement process by adding soda lime flux. The R c values of Pd82Si18 amorphous ribbon were determined before and after soda lime treatment. The experimental results indicate that the R c values of the treated and non-treated ribbon are 10.27 and 148.39 K/s, respectively. The R c value of the treated sample is in good agreement with a previous experimental result. Johnson’s relation gives R c = 22.86 K/s, which confirms the validity of the present results. The results indicate that soda lime flux greatly suppresses heterogeneous nucleation during the measurement process and the inherent R c of Pd82Si18 is revised. This method provides a new way for evaluating the critical cooling rate by suppressing heterogeneous nucleation.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.4992069