Surface smoothing of metallic glasses by swift heavy ion irradiation

Authors
Narayan, H Agrawal, HM Kushwaha, RPS Kanjilal, D Sharma, SK
Citation
H. Narayan et al., Surface smoothing of metallic glasses by swift heavy ion irradiation, NUCL INST B, 156(1-4), 1999, pp. 217-221
Citations number
11
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN journal
0168583X → ACNP
Volume
156
Issue
1-4
Year of publication
1999
Pages
217 - 221
Database
ISI
SICI code
0168-583X(199907)156:1-4<217:SSOMGB>2.0.ZU;2-B
Abstract
Self supporting samples of Metglass 2204 (Ti50Be40Zr10) and substrate bound samples of Metglass 2705M (Co69B12Si12Fe4Mo2Ni1) have been irradiated with 260 MeV Ag-107 and 130 MeV Si-28 ions, respectively at liquid nitrogen tem perature. The surfaces have been examined by Scanning Electron Microscopy p rior to and after irradiation. It is found that the surfaces have been smoo thened after irradiation in both cases. The heights of the 'hills' have bee n decreased and the 'valleys' have been filled, without any detectable mass loss. The observed surface smoothing has been explained on the basis of sh ear flow mechanism within the framework of the viscoelastic model. (C) 1999 Elsevier Science B.V. All rights reserved.