Title of article
Difference in crystallization kinetics of Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass under different oxidizing environments
Author/Authors
Wong، نويسنده , , C.H. and Shek، نويسنده , , C.H.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
3
From page
1257
To page
1259
Abstract
Crystallization kinetics of Zr41Ti14Cu12.5Ni10Be22.5 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 5 Torr was about seven times shorter than that under 760 Torr. 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.
Keywords
A. Nanostructured intermetallics (including preparation methods) , B. Thermal stability , B. Oxidation , F. Diffraction (electron , neutron and X-ray) , F. Spectroscopic methods , various
Journal title
Intermetallics
Serial Year
2004
Journal title
Intermetallics
Record number
1502387
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