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Metals 2012, 2(4), 441-449; doi:10.3390/met2040441

Nanometer-Scale Heterogeneities of the Structure of Zirconium-Based Bulk Metallic Glasses

National Science Center “Kharkov Institute of Physics & Technology”, Akademicheskaya 1, 61108 Kharkov, Ukraine
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Received: 10 October 2012 / Revised: 26 October 2012 / Accepted: 29 October 2012 / Published: 15 November 2012
(This article belongs to the Special Issue Amorphous Alloys)
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Abstract

Structure of amorphous alloys ZrTiCuNiBe and ZrTiCuNiAl is studied by means of low-field ion and combined field-emission microscopy. In both alloys the structural heterogeneities of nanometer-scale are clearly revealed. The surface layers formed by field evaporation possess a cellular structure. The cells have polygonal shape with transverse size ranging from 2 nm to 20 nm. It is established that variance of the local energy of field evaporation is of 0%–5% in the cell body. A local minimum of the field evaporation energy is observed within the cell boundaries (intercluster boundaries). In the minimum the depth is measured to be of 0.8 eV.
Keywords: bulk metallic glasses; field ion microscopy; nanostructure; field emission; clusters bulk metallic glasses; field ion microscopy; nanostructure; field emission; clusters
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Bakai, A.S.; Sadanov, E.V.; Ksenofontov, V.A.; Bakai, S.A.; Gordienko, J.A.; Mikhailovskij, I.M. Nanometer-Scale Heterogeneities of the Structure of Zirconium-Based Bulk Metallic Glasses. Metals 2012, 2, 441-449.

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