Nanometric size effects on irradiation of tin oxide powder

Authors
Berthelot, A Hemon, S Gourbilleau, F Dufour, C Dooryhee, E Paumier, E
Citation
A. Berthelot et al., Nanometric size effects on irradiation of tin oxide powder, NUCL INST B, 146(1-4), 1998, pp. 437-442
Citations number
25
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
146
Issue
1-4
Year of publication
1998
Pages
437 - 442
Database
ISI
SICI code
0168-583X(199812)146:1-4<437:NSEOIO>2.0.ZU;2-E
Abstract
A nanometric powder of tin oxide (SnO2) has been irradiated with lead ions. The same grains have been observed by Transmission Electron Microscopy (TE M) before and after irradiation at a fluence of 5 x 10(12) Pb cm(-2). The s hape of largest grains strongly changes while the smallest ones disappear. This phenomenon has been explained by using the thermal spike model. It app ears that the irradiation induces an increase of the internal pressure in t he grains leading to their explosion. In the smallest grains, the calculate d maximal temperatures exceed the boiling point so that these grains disapp ear. (C) 1998 Elsevier Science B.V. All rights reserved.