Difference in crystallization kinetics of Zr41Ti 14Cu12.5Ni10Be22.5 bulk metallic glass under different oxidizing environments

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1257-1259
Journal / PublicationIntermetallics
Volume12
Issue number10-11 SPEC. ISS.
Publication statusPublished - Oct 2004

Abstract

Crystallization kinetics of Zr41Ti14Cu 12.5Ni10Be22.5 bulk metallic glass (BMG) isothermally annealed at 653 K under different air pressures has been investigated using X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. The kinetics was found to have a strong dependence on the variation of the air pressure during annealing. The time required for the formation of crystals in detectable quantities under 5Torr was about seven times shorter than that under 760Torr. The accelerated crystallization in the former case is attributed to a large amount of oxygen penetrating into the BMG. The phenomenon is discussed on the basis of oxygen contamination under atmospheric annealing. © 2004 Elsevier Ltd. All rights reserved.

Research Area(s)

  • A. Nanostructured intermetallics (including preparation methods), B. Oxidation, B. Thermal stability, F. Diffraction (electron, neutron and X-ray), F. Spectroscopic methods, various