Characterization of native oxide layers on amorphous Fe73.5Si15.5B7Cu1Nb3 before and after high-energy heavy ion irradiation by X-ray photoelectron spectroscopy (XPS)

Citation
R. Jain et al., Characterization of native oxide layers on amorphous Fe73.5Si15.5B7Cu1Nb3 before and after high-energy heavy ion irradiation by X-ray photoelectron spectroscopy (XPS), MAT SCI E A, 297(1-2), 2001, pp. 105-110
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
297
Issue
1-2
Year of publication
2001
Pages
105 - 110
Database
ISI
SICI code
0921-5093(20010115)297:1-2<105:CONOLO>2.0.ZU;2-V
Abstract
The surface oxide layers formed in atmosphere at room temperature (native o xide) on a FINEMET alloy Fe73.5Si15.5B7Cu1Nb3, before and after high energy heavy ion (Ni+11, 150 MeV) irradiation, were characterized by X-ray photoe lectron spectroscopy (XPS). The major cationic species in layers were found to be Fe3+, B3+, Si4+, Nb2+/Nb4+ while Cu was present in the elemental for m. The native oxide layer on the irradiated specimen contained higher amoun ts of oxides of Si and B in comparison unirradiated specimen. After irradia tion both Nb and Cu were found to be depleted on the surface. The thickness of oxide layer formed on the surface is estimated to be approximately 25 a nd 40 Angstrom on the virgin and irradiated specimen, respectively. (C) 200 1 Elsevier Science B.V. All rights reserved.