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

C. H. Wong; C. H. Shek

doi:10.1016/j.intermet.2004.04.025

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

C. H. Wong, C. H. Shek

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

9 Citations (Scopus)

Abstract

Crystallization kinetics of Zr₄₁Ti₁₄Cu _12.5Ni₁₀Be_22.5 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.

Original language	English
Pages (from-to)	1257-1259
Journal	Intermetallics
Volume	12
Issue number	10-11 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.intermet.2004.04.025
Publication status	Published - Oct 2004

Research Keywords

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

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@article{b520f36359684cacb997301cd5d69d8e,

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

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. {\textcopyright} 2004 Elsevier Ltd. All rights reserved.",

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

author = "Wong, {C. H.} and Shek, {C. H.}",

year = "2004",

month = oct,

doi = "10.1016/j.intermet.2004.04.025",

language = "English",

volume = "12",

pages = "1257--1259",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Ltd.",

number = "10-11 SPEC. ISS.",

}

TY - JOUR

T1 - Difference in crystallization kinetics of Zr41Ti 14Cu12.5Ni10Be22.5 bulk metallic glass under different oxidizing environments

AU - Wong, C. H.

AU - Shek, C. H.

PY - 2004/10

Y1 - 2004/10

N2 - 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.

AB - 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.

KW - A. Nanostructured intermetallics (including preparation methods)

KW - B. Oxidation

KW - B. Thermal stability

KW - F. Diffraction (electron, neutron and X-ray)

KW - F. Spectroscopic methods, various

UR - http://www.scopus.com/inward/record.url?scp=4644363478&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-4644363478&origin=recordpage

U2 - 10.1016/j.intermet.2004.04.025

DO - 10.1016/j.intermet.2004.04.025

M3 - RGC 21 - Publication in refereed journal

SN - 0966-9795

VL - 12

SP - 1257

EP - 1259

JO - Intermetallics

JF - Intermetallics

IS - 10-11 SPEC. ISS.

ER -

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

Abstract

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