Journal
MATERIALS LETTERS
Volume 192, Issue -, Pages 142-145Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2016.12.039
Keywords
Amorphous materials; Polyamorphism; Microstructure; Synchrotron radiation
Funding
- National Natural Science Foundation of China [51271161]
- PhD research startup foundation of Henan Normal University [qd208]
- Foundation of He'nan Educational Committee [15A140008/15A140007]
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Polymaorphism was recently revealed in metallic glasses (MGs) under high-pressure. The electronic structural evolution of solvent component was confirmed to be essentially responsible for the polyamorphic transition in MGs. In this paper, structural evolutions of Ce68-xLaxAl10Cu20Co2 (x = 0, 34, and 68) MGs were investigated by in situ high pressure X-ray diffraction measurements. The effect of composition on pressure-induced polyamorphism in MGs was discussed. The results indicated that polyamorphous in Ce-based MGs is strongly related to the Ce concentration. These results provide new insight for searching for polyamorphous and glass structure in MGs. (C) 2016 Elsevier B.V. All rights reserved.
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