Surface oxidation of amorphous Zr65Cu17.5Ni10Al7.5 and Zr46.75Ti8.25Cu7.5Ni10Be27.5

Authors
Sharma, SK Strunskus, T Ladebusch, H Faupel, F
Citation
Sk. Sharma et al., Surface oxidation of amorphous Zr65Cu17.5Ni10Al7.5 and Zr46.75Ti8.25Cu7.5Ni10Be27.5, MAT SCI E A, 304, 2001, pp. 747-752
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN journal
09215093 → ACNP
Volume
304
Year of publication
2001
Pages
747 - 752
Database
ISI
SICI code
0921-5093(20010531)304:<747:SOOAZA>2.0.ZU;2-R
Abstract
The initial oxidation and the native oxidation of the amorphous alloys Zr65 Cu17.5Ni10Al7.5 (henceforth, called the Inoue alloy) and Zr46.75Ti8.25Cu7.5 Ni10Be27.5 (Vitreloy 4 or V4) at mom temperature were studied by X-ray phot oelectron spectroscopy (XPS). The XPS analysis of the oxide films showed th at the major constituent was Zr(IV) oxide, possibly as ZrO2 along with smal l amounts of the oxides of Ti, Be (in the alloy V F) and of Al (in Inoue al loy in the native oxide case) while Cu and Ni in both the alloys were prese nt in their metallic forms only. The results are explained using the heat o f formation data and the diffusion behaviour of the alloying elements. (C) 2001 Elsevier Science B.V. All rights reserved.