Effects of alloying on oxidation of Cu-based bulk metallic glasses

C. Y. Tam; C. H. Shek

doi:10.1557/JMR.2005.0336

Effects of alloying on oxidation of Cu-based bulk metallic glasses

C. Y. Tam
, C. H. Shek

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

12 Citations (Scopus)

Abstract

The oxidation kinetics and the effects of alloying on the oxidation behaviors of copper-based bulk metallic glasses were studied. The oxidation kinetics, oxide compositions, and structures were investigated by thermogravimetric analysis (TGA), x-ray diffraction, x-ray photoelectron spectroscopy (XPS), and scanning electron microscopy. Both the TGA results and the XPS depth profile measurements showed that the oxidation resistance of Cu₆₀Zr₃Ti₁₀ bulk metallic glass was improved by adding Hf, but it deteriorated when it was alloyed with Y. The oxide phases were found to be ZrO₂, Cu₂O, and CuO in samples heated at 573 K while an additional metallic Cu phase was detected in the ones heated at 773 K. A porous oxide structure was observed in the (Cu_O.6 Zr_0.3Ti_0.1)₉₈Y₂ mettalic glass oxidized at 673 K and the poor oxidation resistance of the alloy is attributed to the porous structure. © 2005 Materials Research Society.

Original language	English
Pages (from-to)	2647-2653
Journal	Journal of Materials Research
Volume	20
Issue number	10
DOIs	https://doi.org/10.1557/JMR.2005.0336
Publication status	Published - Oct 2005

Access Output

10.1557/JMR.2005.0336

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{69b115f0984c4917bc4323fd4b9fab48,

title = "Effects of alloying on oxidation of Cu-based bulk metallic glasses",

abstract = "The oxidation kinetics and the effects of alloying on the oxidation behaviors of copper-based bulk metallic glasses were studied. The oxidation kinetics, oxide compositions, and structures were investigated by thermogravimetric analysis (TGA), x-ray diffraction, x-ray photoelectron spectroscopy (XPS), and scanning electron microscopy. Both the TGA results and the XPS depth profile measurements showed that the oxidation resistance of Cu60Zr3Ti10 bulk metallic glass was improved by adding Hf, but it deteriorated when it was alloyed with Y. The oxide phases were found to be ZrO2, Cu2O, and CuO in samples heated at 573 K while an additional metallic Cu phase was detected in the ones heated at 773 K. A porous oxide structure was observed in the (CuO.6 Zr0.3Ti0.1)98Y2 mettalic glass oxidized at 673 K and the poor oxidation resistance of the alloy is attributed to the porous structure. {\textcopyright} 2005 Materials Research Society.",

author = "Tam, \{C. Y.\} and Shek, \{C. H.\}",

year = "2005",

month = oct,

doi = "10.1557/JMR.2005.0336",

language = "English",

volume = "20",

pages = "2647--2653",

journal = "Journal of Materials Research",

issn = "0884-2914",

publisher = "Springer International Publishing ",

number = "10",

}

TY - JOUR

T1 - Effects of alloying on oxidation of Cu-based bulk metallic glasses

AU - Tam, C. Y.

AU - Shek, C. H.

PY - 2005/10

Y1 - 2005/10

N2 - The oxidation kinetics and the effects of alloying on the oxidation behaviors of copper-based bulk metallic glasses were studied. The oxidation kinetics, oxide compositions, and structures were investigated by thermogravimetric analysis (TGA), x-ray diffraction, x-ray photoelectron spectroscopy (XPS), and scanning electron microscopy. Both the TGA results and the XPS depth profile measurements showed that the oxidation resistance of Cu60Zr3Ti10 bulk metallic glass was improved by adding Hf, but it deteriorated when it was alloyed with Y. The oxide phases were found to be ZrO2, Cu2O, and CuO in samples heated at 573 K while an additional metallic Cu phase was detected in the ones heated at 773 K. A porous oxide structure was observed in the (CuO.6 Zr0.3Ti0.1)98Y2 mettalic glass oxidized at 673 K and the poor oxidation resistance of the alloy is attributed to the porous structure. © 2005 Materials Research Society.

AB - The oxidation kinetics and the effects of alloying on the oxidation behaviors of copper-based bulk metallic glasses were studied. The oxidation kinetics, oxide compositions, and structures were investigated by thermogravimetric analysis (TGA), x-ray diffraction, x-ray photoelectron spectroscopy (XPS), and scanning electron microscopy. Both the TGA results and the XPS depth profile measurements showed that the oxidation resistance of Cu60Zr3Ti10 bulk metallic glass was improved by adding Hf, but it deteriorated when it was alloyed with Y. The oxide phases were found to be ZrO2, Cu2O, and CuO in samples heated at 573 K while an additional metallic Cu phase was detected in the ones heated at 773 K. A porous oxide structure was observed in the (CuO.6 Zr0.3Ti0.1)98Y2 mettalic glass oxidized at 673 K and the poor oxidation resistance of the alloy is attributed to the porous structure. © 2005 Materials Research Society.

UR - https://www.scopus.com/pages/publications/29144533922

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-29144533922&origin=recordpage

U2 - 10.1557/JMR.2005.0336

DO - 10.1557/JMR.2005.0336

M3 - RGC 21 - Publication in refereed journal

SN - 0884-2914

VL - 20

SP - 2647

EP - 2653

JO - Journal of Materials Research

JF - Journal of Materials Research

IS - 10

ER -

Effects of alloying on oxidation of Cu-based bulk metallic glasses

Abstract

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this