Direct visualization of Ni-Nb bulk metallic glasses surface: From initial nucleation to full crystallization

This article is devoted to in situ investigation of the Ni-based bulk metallic glass structural evolution and crystallization behavior by scanning tunneling microscopy/spectroscopy. The possibility of different surface nanostructures formation is shown by annealing of an original bulk glassy alloy i...

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Bibliographic Details
Published in:Applied physics letters 2012-10, Vol.101 (18)
Main Authors: Oreshkin, A. I., Mantsevich, V. N., Savinov, S. V., Oreshkin, S. I., Panov, V. I., Maslova, N. S., Louzguine-Luzgin, D. V.
Format: Article
Language:English
Subjects:
Amorphous materials
Crystallization
Metallic glasses
Nanocomposites
Nanomaterials
Nanostructure
Nickel
Nucleation
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Summary:This article is devoted to in situ investigation of the Ni-based bulk metallic glass structural evolution and crystallization behavior by scanning tunneling microscopy/spectroscopy. The possibility of different surface nanostructures formation is shown by annealing of an original bulk glassy alloy in ultra high vacuum. Atomic locations in these surface nanostructures are completely different from those formed according to Ni-Nb binary phase diagram in the bulk area of the sample. The validity of the results is also verified by transmission electron microscopy and nano-beam diffraction measurements.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4760272